☆ 4.1 Review

Advanced nanoengineering strategies endow high-performance layered transition-metal oxide cathodes for sodium-ion batteries

SMARTMAT (2023)

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Review Chemistry, Applied

High valence metals engineering strategies of Fe/Co/Ni-based catalysts for boosted OER electrocatalysis

Lu Li et al.

Summary: This review summarizes the construction strategies of high valence metals as dopants or heterostructures with Fe/Co/Ni-based catalysts and highlights their induced effects, including accelerating surface reconstruction, forming amorphous structure, generating vacancies/defects, and acting as stabilizers. The impacts of high valence metals on OER performance are elucidated based on different elements, and the correlations between construction strategies, induced effects, catalytic activity, and OER reaction pathways are discussed. The remaining challenges for further enhancements of OER performance induced by high valence metals are presented.

JOURNAL OF ENERGY CHEMISTRY (2023)

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Article Chemistry, Multidisciplinary

Topotactic Epitaxy Self-Assembly of Potassium Manganese Hexacyanoferrate Superstructures for Highly Reversible Sodium-Ion Batteries

Xiaoxia Li et al.

Summary: A topotactic epitaxy process was proposed to generate K2Mn[Fe(CN)(6)] (KMF) submicron octahedra and assemble them into octahedral superstructures (OSs) as the SIB cathode. The self-assembly behavior of KMF improves the structural stability and decreases the contact area with the electrolyte, which inhibits the transition metal dissolution. Furthermore, KMF acts as a stabilizer to disrupt the long-range JT order of NMF, thereby suppressing the overall JT distortion. As a result, KMF cathodes exhibit excellent electrochemical performances with highly reversible phase transition and outstanding cycling performance.

ACS NANO (2022)

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Article Chemistry, Multidisciplinary

Surface Engineering Suppresses the Failure of Biphasic Sodium Layered Cathode for High Performance Sodium-Ion Batteries

Haocheng Ji et al.

Summary: Sodium-ion batteries are considered the most promising candidates for large-scale grid storage systems due to their high capacity and long lifespan, but the failure at the cathode-electrolyte interface leads to electrochemical performance degradation. The surface engineering strategy using metal oxide atomic layer deposition (ALD) protective layer successfully improves the stability and performance of the electrode, providing concepts for suppressing the failure of sodium layered cathodes.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Chemistry, Multidisciplinary

A Universal Strategy toward Air-Stable and High-Rate O3 Layered Oxide Cathodes for Na-Ion Batteries

Xin-Guang Yuan et al.

Summary: Introducing proper Na vacancies into the lattice of O3-type layered oxides simultaneously improves stability, diffusion pathways, and lowers energy barriers, showing great potential for commercial application. This strategy can be easily applied to various O3 materials before or after treatment, indicating its universality.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Unusual Site-Selective Doping in Layered Cathode Strengthens Electrostatic Cohesion of Alkali-Metal Layer for Practicable Sodium-Ion Full Cell

Bo Peng et al.

Summary: The P2-type Na0.67Ni0.33Mn0.67O2 cathode material achieves stable cycling and moisture resistancy at a higher voltage through dual-site doping with Cu ion and unusual Zn ion. This unique dual-site-doped cathode exhibits excellent cyclic performance and capacity retention at high rates, demonstrating its potential for practical applications.

ADVANCED MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Enabling Anionic Redox Stability of P2-Na5/6Li1/4Mn3/4O2 by Mg Substitution

Yangyang Huang et al.

Summary: In this study, stable anionic redox reactions were achieved by substituting sodium ions with magnesium ions in P2-type sodium-rich layered oxide. The density functional theory (DFT) calculations showed that magnesium substitution effectively decreased the oxygen chemical potential, leading to improved lattice oxygen stability. It was also found that at a highly desodiated state, the remaining magnesium ions in the lattice could interact with oxygen 2p orbitals, facilitating the reversibility of oxygen redox. Cycling tests demonstrated that Na0.773Mg0.03Li0.25Mn0.75O2 exhibited better cycle stability compared to Na0.83Li0.25Mn0.75O2. The experimental results also showed that Na0.773Mg0.03Li0.25Mn0.75O2 had a zero-strain cathode behavior.

ADVANCED MATERIALS (2022)

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Article Engineering, Environmental

Rational design of Na0.67Ni0.2Co0.2Mn0.6O2 microsphere cathode material for stable and low temperature sodium ion storage

Xuan Wang et al.

Summary: In this study, a suitable Co-substituted Na0.67Ni0.2Co0.2Mn0.6O2 microsphere was designed and synthesized to effectively increase the interlayer spacing of transition metal oxides (TMO2) and improve Na+ diffusion kinetics, resulting in a high specific capacity. The optimized material demonstrated superior long-term cycle stability with a capacity retention rate of 83% over 200 cycles at 2 C, and also showed satisfactory sodium storage performance at extremely low temperatures.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Multidisciplinary

Molten-Salt Synthesis of O3-Type Layered Oxide Single Crystal Cathodes with Controlled Morphology towards Long-Life Sodium-Ion Batteries

Julia Lamb et al.

Summary: The authors successfully synthesized single-crystal sodium layered oxides with improved cycle life and air stability using a molten-salt synthesis technique. Compared to traditional polycrystalline morphology, these single crystals have higher packing density and lower surface area, thereby improving materials performance.

SMALL (2022)

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Article Chemistry, Multidisciplinary

Synergetic stability enhancement with magnesium and calcium ion substitution for Ni/Mn-based P2-type sodium-ion battery cathodes

Hongwei Fu et al.

Summary: The study successfully doped magnesium and calcium ions into Na0.67Ni0.33Mn0.67O2 to improve cycling endurance by reducing O-type stacking in the high-voltage region, leading to a decrease in capacity. Density functional theory studies showed that the introduction of Mg2+ and Ca2+ made high-voltage reactions less accessible.

CHEMICAL SCIENCE (2022)

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Article Chemistry, Physical

Importance of Superstructure in Stabilizing Oxygen Redox in P3-Na0.67Li0.2Mn0.8O2

Eun Jeong Kim et al.

Summary: Activation of oxygen redox is a promising strategy to enhance energy density of positive electrode materials in lithium and sodium-ion batteries. A ribbon superlattice is identified for the first time in P3-type Na0.67Li0.2Mn0.8O2, maintaining structural stability during cycling. Varying cation ordering between Li and Mn layers can enhance anionic redox and improve energy density in rechargeable batteries.

ADVANCED ENERGY MATERIALS (2022)

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Article Chemistry, Physical

Mitigating the Large-Volume Phase Transition of P2-Type Cathodes by Synergetic Effect of Multiple Ions for Improved Sodium-Ion Batteries

Zhiwei Cheng et al.

Summary: This study presents a strategy based on the synergetic effect of multiple selected metal ions to improve the performance of P2-type cathodes. The results demonstrate that the contribution of multi-metal ions converts the unfavorable and large-volume phase transition into a moderate structure, leading to enhanced electrode performance. The P2-Na0.7Li0.03Mg0.03Ni0.27Mn0.6Ti0.07O2 composite electrode exhibits high reversible capacity, cycling stability, and rate performance, and the full cell with a hard carbon anode achieves a high energy density.

ADVANCED ENERGY MATERIALS (2022)

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Article Chemistry, Applied

A comprehensive modification enables the high rate capability of P2-Na0.75Mn0.67Ni0.33O2 for sodium-ion cathode materials

Xiaochen Feng et al.

Summary: This study proposes an integrated strategy to optimize P2-type cathode material by achieving a high Na content, In3+ doping, and NaInO2 coating. The strategy effectively inhibits the sodium vacancy order, smooths the electrochemical curve, and enhances the structural stability and rate capability.

JOURNAL OF ENERGY CHEMISTRY (2022)

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Article Chemistry, Physical

Hierarchical O3/P2 heterostructured cathode materials for advanced sodium-ion batteries

Xinghui Liang et al.

Summary: O3-type layered materials are considered as promising cathode materials for advanced sodium-ion batteries. However, complex phase transitions and severe electrochemical corrosion during cycling limit their performance. A heterostructured cathode with a P2-Na2/3MnO2-coated shell is designed to improve the reversibility, cycling stability, and electrochemical kinetics of the cathode.

ENERGY STORAGE MATERIALS (2022)

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Article Chemistry, Physical

Manipulating Stable Layered P2-Type Cathode via a Co-Substitution Strategy for High Performance Sodium Ion Batteries

Jun Xiao et al.

Summary: This study reports the synthesis of a layered P2-type Mn-based Na0.7Li0.06Zn0.06Ni0.21Mn0.67O2 material by partially substituting Ni with Li and Zn. The resulting material exhibits a stable crystal structure and shows excellent cycle life and electrochemical kinetics during the electrochemical process. It is a promising cathode material for sodium ion batteries.

SMALL METHODS (2022)

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Article Chemistry, Physical

Anionic Redox Activities Boosted by Aluminum Doping in Layered Sodium-ton Battery Electrode

Chen Cheng et al.

Summary: Sodium-ion batteries have limitations due to the limited capacity of cathode materials. This study investigates Al-doped Na0.6Ni0.3Mn0.7O2 cathode materials and their charge compensation mechanisms. The results show that Al doping enhances the oxygen redox reactions and inhibits phase transitions, leading to improved capacity retention and rate capability.

SMALL METHODS (2022)

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Article Green & Sustainable Science & Technology

Topologically protected oxygen redox in a layered manganese oxide cathode for sustainable batteries

Ang Gao et al.

Summary: The authors report a Na0.6Li0.2Mn0.8O2 cathode design with a unique layer stacking sequence that provides topological protection for oxygen redox to overcome performance fading.

NATURE SUSTAINABILITY (2022)

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Article Chemistry, Multidisciplinary

Unravelling the Nature of the Intrinsic Complex Structure of Binary-Phase Na-Layered Oxides

Anil K. Paidi et al.

Summary: This study conducts a detailed analysis of the phase structure and atomic-scale structural visualization of the Na1-xTMO2 cathode materials, and discovers the existence of mixed-phase intergrowth layer and a simple phase transformation process. First-principles calculations provide evidence for the formation of the binary compound NFMO-P2/O3. The synergistic effect of the P-type and O-type phases enables outstanding capacity retention in a wide range of voltage.

ADVANCED MATERIALS (2022)

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Article Chemistry, Multidisciplinary

A Rational Biphasic Tailoring Strategy Enabling High-Performance Layered Cathodes for Sodium-Ion Batteries

Zhiwei Cheng et al.

Summary: Layered oxide cathodes with high compositional diversity provide controllable electrochemical performance for Na-ion batteries. This study explores the thermodynamically stable phase diagram of P2/O3 composites and reveals the reversible structural evolution and high performance of a specific P2/O3 composite material.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

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Article Chemistry, Physical

High-Voltage Stabilization of O3-Type Layered Oxide for Sodium-Ion Batteries by Simultaneous Tin Dual Modification

Tengfei Song et al.

Summary: A novel Sn-modified O3-type layered oxide cathode has been developed, demonstrating improved high-voltage stability through bulk Sn doping and surface coating in a one-step process, leading to enhanced cycling performance and capacity retention.

CHEMISTRY OF MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Using High-Entropy Configuration Strategy to Design Na-Ion Layered Oxide Cathodes with Superior Electrochemical Performance and Thermal Stability

Feixiang Ding et al.

Summary: In this study, a high-entropy configuration strategy was used to improve the NaxTMO2 cathode materials, which enhanced the skeleton structure and particle morphology, leading to improved Na+ transport kinetics and battery performance, as well as enhanced thermal safety.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

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Article Chemistry, Multidisciplinary

Achieving High Stability and Performance in P2-Type Mn-Based Layered Oxides with Tetravalent Cations for Sodium-Ion Batteries

Panawan Vanaphuti et al.

Summary: P2-type sodium-manganese-based layered cathodes show potential for replacing Li-ion batteries in certain applications. A cobalt-free P2-Na0.72Mn0.75Li0.24X0.01O2 (X = Ti/Si) cathode with high sustainability is developed, which exhibits outstanding capacity and voltage retention. The presence of Ti acts as a protective layer to alleviate side reactions, while Si regulates the local electronic structure and suppresses oxygen redox activities. The cathode also shows superior cycle performance and inhibits microcracking and planar gliding within the particles, making it a promising candidate for high-performance low-cost sodium-ion batteries.

SMALL (2022)

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Article Chemistry, Multidisciplinary

Unblocking Oxygen Charge Compensation for Stabilized High-Voltage Structure in P2-Type Sodium-Ion Cathode

He Zhu et al.

Summary: A Ti/Mg co-doping strategy was used to activate charge compensation in layered sodium oxides, leading to improved cycling stability in sodium-ion batteries.

ADVANCED SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Synergetic Anion-Cation Redox Ensures a Highly Stable Layered Cathode for Sodium-Ion Batteries

Xiang Li et al.

Summary: Sodium-ion batteries are considered as a promising option for large-scale energy storage. Layered iron/manganese oxide cathodes have garnered considerable attention due to their abundance of elements and high theoretical capacity. This study proposes a strategy of anion-cation synergetic redox to suppress structural deterioration and improve electrochemical performance. The results demonstrate that the Na0.8Li0.2Fe0.2Mn0.6O2 electrode exhibits resistance to moisture erosion, solid solution behavior, and excellent reversible capacity and cycling stability.

ADVANCED SCIENCE (2022)

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Article Chemistry, Physical

Insights into the improved cycle and rate performance by ex-situ F and in-situ Mg dual doping of layered oxide cathodes for sodium-ion batteries

Xiaoling Cui et al.

Summary: In this study, the performance of the P2 phase layered manganese-based transition metal (TM) oxides in sodium-ion batteries (SIBs) is improved by doping with F and Mg. F-doping reduces capacity fading caused by irreversible phase transition and Jahn-Teller effect, while Mg-doping completely inhibits phase transition and mitigates the slide of TM layers. The double-doping of F and Mg synergistically improves the performance of SIBs.

ENERGY STORAGE MATERIALS (2022)

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Article Chemistry, Physical

Low-cost layered oxide cathode involving cationic and anionic redox with a complete solid-solution sodium-storage behavior

Yao Wang et al.

Summary: The research presents a new approach to achieving high-energy and long-life layered oxide cathodes in sodium-ion batteries by developing a novel P2-NCLFMO material and realizing a complete solid-solution sodiation/desodiation behavior over a wide voltage range. The P2-NCLFMO cathode exhibits outstanding rate capability and cycling performance, and when paired with a hard carbon anode, it delivers a promising energy density for sodium-ion full batteries.

ENERGY STORAGE MATERIALS (2022)

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Article Chemistry, Physical

Facilitating sustainable oxygen-redox chemistry for P3-type cathode materials for sodium-ion batteries

Jae Hyeon Jo et al.

Summary: In this study, the surface of the P3-Na-0.6[Mn0.6Co0.2Mg0.2]O-2 cathode material is enhanced by introducing a nanolayer of ionic-conducting sodium phosphate (NaPO3) with a thickness of approximately 10 nm. The high ionic conductivity (approximately 10(-6) S cm(-1)) of this layer facilitates the diffusion of Na+ ions. Additionally, the NaPO3 coating layer prevents the formation of surface byproducts generated from reaction with the electrolyte. The NaPO3-coated P3-Na-0.6[Mn0.6Co0.2Mg0.2]O-2 electrode retains over 80% of the initial capacity after 200 cycles at both 0.1C and a high rate (5C), with a capacity retention of 88% after 300 cycles. The use of oxygen redox for high-energy sodium-ion batteries (SIBs) is demonstrated, ensuring long-term cyclability.

ENERGY STORAGE MATERIALS (2022)

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Article Chemistry, Physical

Shear-resistant interface of layered oxide cathodes for sodium ion batteries

Qun Huang et al.

Summary: Layered sodium transition metal oxides have potential as cathode materials for sodium-ion batteries. This study introduces a shear-resistant interface by using supersaturated lithium to inhibit phase transitions, improving cycling stability.

ENERGY STORAGE MATERIALS (2022)

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Article Chemistry, Physical

Mitigating interfacial instability of high-voltage sodium layered oxide cathodes with coordinative polymeric structure

Jialin Lin et al.

Summary: The study demonstrates the use of PMAA-AN copolymer nanolayer to enhance the electrochemical performance and interfacial stability of high-voltage sodium-based layered oxides, significantly improving the capacity retention and rate capability of sodium-ion batteries. The protective mechanism of polymeric coatings with coordinative structure provides new insights and paves the way for advancing high-voltage layered oxides for high-energy-density SIBs.

JOURNAL OF POWER SOURCES (2022)

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Article Chemistry, Multidisciplinary

An Undoped Tri-Phase Coexistent Cathode Material for Sodium-Ion Batteries

Ranran Li et al.

Summary: Layered transition-metal-oxide materials are promising cathode materials for sodium-ion batteries. Constructing composite structures can improve the electrochemical performance. The staggered arrangement of different phase structures and the gradient Na-extraction/intercalation voltages of different phases contribute to the improved capacity retention and rate performance.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Formulating High-Rate and Long-Cycle Heterostructured Layered Oxide Cathodes by Local Chemistry and Orbital Hybridization Modulation for Sodium-Ion Batteries

Yao Xiao et al.

Summary: This study reports the concept of accurately manipulating structural evolution and formulating high-performance heterostructured biphasic layered oxide cathodes for sodium-ion batteries. The research shows that this strategy can achieve excellent rate performance and cycling stability for the cathode material, while maintaining good compatibility with the anode.

ADVANCED MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Dual Honeycomb-Superlattice Enables Double-High Activity and Reversibility of Anion Redox for Sodium-Ion Battery Layered Cathodes

Qi Wang et al.

Summary: Constructing a dual honeycomb-superlattice structure enables high activity and reversibility of lattice oxygen in layered oxides. The [Li1/7Mn5/14] superlattice units trigger anion redox activity, while the [Mg1/7Mn5/14] superlattice units benefit the structure and anion redox reversibility.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

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Article Multidisciplinary Sciences

Niobium-doped layered cathode material for high-power and low-temperature sodium-ion batteries

Qinhao Shi et al.

Summary: The authors propose a method to improve the performance of P2-type sodium metal oxide cathode materials by niobium doping, and demonstrate their high-efficiency energy storage performance at different temperatures through experiments.

NATURE COMMUNICATIONS (2022)

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Article Chemistry, Physical

Strain Engineering by Local Chemistry Manipulation of Triphase Heterostructured Oxide Cathodes to Facilitate Phase Transitions for High-Performance Sodium-Ion Batteries

Hai-Yan Hu et al.

Summary: Strain engineering via manipulating the local chemistry of heterostructured oxide cathode can lead to highly reversible structural evolution and low intrinsic stress, thereby improving the performance of sodium-ion oxide cathodes.

ADVANCED ENERGY MATERIALS (2022)

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Article Chemistry, Physical

Achieving reversible Mn2+/Mn4+ double redox couple through anionic substitution in a P2-type layered oxide cathode

Haolv Hu et al.

Summary: In this study, we successfully introduced reversible Mn2+/Mn4+ double redox couple into P2-type Na0.6Mg0.3Mn0.7O2 cathode with suppressed Jahn-Teller (J-T) effect through F anion doping strategy. The introduction of F anions enlarged the interlayer spacing, reduced the band gap, improved charge transfer kinetics, suppressed Mn2+ dissolution, promoted reversible conversion, enhanced oxygen redox reaction, and ultimately enhanced the electrochemical performance.

NANO ENERGY (2022)

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Article Energy & Fuels

Low-solvation electrolytes for high-voltage sodium-ion batteries

Yan Jin et al.

Summary: The authors develop an electrolyte that effectively suppresses the dissolution of the solid-electrolyte interphase in sodium-ion batteries, enabling long-cycle and high-voltage performance. This study provides a guiding principle in electrolyte design for sodium-ion batteries.

NATURE ENERGY (2022)

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Article Chemistry, Multidisciplinary

A Novel Pentanary Metal Oxide Cathode with P2/O3 Biphasic Structure for High-Performance Sodium-Ion Batteries

Xinghui Liang et al.

Summary: In this study, a novel P2/O3 biphasic cathode is developed using a multi-element co-substitution strategy. The topotactic intergrown structure effectively suppresses deleterious phase transformations and lattice mismatch, and the incorporation of stabilizing dopant pillars and suppressed metal-ion dissolution improves the structural stability and Na+ diffusion kinetics of the cathode.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Electrochemistry

A molybdenum doped layer-spinel composite cathode material for sodium-ion battery

Sai Pranav Vanam et al.

Summary: This study reports a unique Mn-rich layer-spinel composite stabilized through Mo doping, which exhibits high capacity and excellent electrochemical performance within the voltage range of 1.5-4.5 V.

ELECTROCHIMICA ACTA (2022)

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Article Chemistry, Physical

High-Entropy and Superstructure-Stabilized Layered Oxide Cathodes for Sodium-Ion Batteries

Libing Yao et al.

Summary: An integrated strategy of high-entropy design and superlattice-stabilization is reported to improve the cycle life and rate capability of layered cathodes for sodium-ion batteries.

ADVANCED ENERGY MATERIALS (2022)

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Article Chemistry, Physical

Promoting the performances of P2-type sodium layered cathode by inducing Na site rearrangement

Taolve Zhang et al.

Summary: The arrangement of Na+ in layered cathode materials has been adjusted through a combination approach, resulting in outstanding rate performance, smooth kinetic process, and excellent cycling performance. This study sheds light on the role of different Na sites and provides a universal and practical approach to adjusting the distribution of Na+ in P2-type cathode materials.

NANO ENERGY (2022)

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Article Chemistry, Physical

Interlocking biphasic chemistry for high-voltage P2/O3 sodium layered oxide cathode

Lianzheng Yu et al.

Summary: Biphasic hybridization of layered cathode materials is crucial for enhancing the storage performances of sodium-ion batteries (SIBs). In this study, a unique high-voltage-stable biphasic P2/O3 composite layered oxide-Na0.85Ni0.34Mn0.33Ti0.33O2 was successfully synthesized via Ti substitution. The biphasic cathode showed reversible structural evolution and improved structural stability under high-voltage regions, leading to excellent capacity retention and high energy density in full cells. These findings provide new insights into the design of composite structure materials for SIBs.

ENERGY STORAGE MATERIALS (2022)

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Article Engineering, Environmental

Phase tuning of P2/O3-type layered oxide cathode for sodium ion batteries via a simple Li/F co-doping route

Zhengbo Liu et al.

Summary: Element doping is a common method for improving the performance of cathode materials in batteries. This study successfully transformed an O3-type cathode into a P2-type cathode using a simple Li/F co-doping route. The modified P2-type cathode showed higher Na content, solid solution reaction in a high-voltage range, and a stronger TM-F bond. This research provides a new idea and reference for synthesizing high-performance P2-type layered oxide cathode materials for sodium-ion batteries.

CHEMICAL ENGINEERING JOURNAL (2022)

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Review Chemistry, Physical

Mainstream Optimization Strategies for Cathode Materials of Sodium-Ion Batteries

Huan Xu et al.

Summary: This article provides a comprehensive review of optimization strategies for sodium-ion battery cathode materials, including element doping, surface coating, morphology and structure design. By analyzing representative studies, the fundamental principles, applicable ranges, and influences on properties of these strategies are discussed, and the current impediments and future directions in the field are presented.

SMALL STRUCTURES (2022)

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Article Chemistry, Multidisciplinary

Uncommon Behavior of Li Doping Suppresses Oxygen Redox in P2-Type Manganese-Rich Sodium Cathodes

Biwei Xiao et al.

Summary: This study investigates the effect of Li doping on regulating the oxygen redox activities of P2-structured Na0.66Ni0.25Mn0.75O2 materials, revealing that Li doping has the unique capability of suppressing existing oxygen and Mn redox reactivities while promoting Ni redox activity. The findings provide insights into developing new routes for high-performance cathodes by complementing current oxygen redox mechanisms.

ADVANCED MATERIALS (2021)

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Article Chemistry, Multidisciplinary

The Role of Metal Substitution in Tuning Anion Redox in Sodium Metal Layered Oxides Revealed by X-Ray Spectroscopy and Theory

Iwnetim Abate et al.

Summary: The study reveals that the substitution of Cu or Ni can improve the high-valent oxygen redox in the positive electrode P2-Na0.67-x[Fe0.5Mn0.5]O-2, and that structural disorder is related to oxygen redox, with the Jahn-Teller nature of Fe4+ and the stabilization mechanism of anionic redox determining the extent of structural disorder in the materials.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Multidisciplinary

Vacancy-Enabled O3 Phase Stabilization for Manganese-Rich Layered Sodium Cathodes

Biwei Xiao et al.

Summary: A high-capacity and stable O3 phase sodium cathode material has been developed by leveraging transition metal and oxygen vacancies, leading to increased kinetic barrier that prohibits a complete O3-P3 phase transition.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Engineering, Environmental

Nanoscale surface modification of P2-type Na0.65[Mn0.70Ni0.16Co0.14]O2 cathode material for high-performance sodium-ion batteries

Qiang Deng et al.

Summary: The study successfully modified NMNCO with NTP through a wet chemical method, which significantly improved the performance and cycling stability of the NMNCO@NTP composite as a cathode material for SIBs.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Engineering, Environmental

Cu-doped layered P2-type Na0.67Ni0.33-xCuxMn0.67O2 cathode electrode material with enhanced electrochemical performance for sodium-ion batteries

Liu Yang et al.

Summary: Cu-doped layered P2-type Na0.67Ni0.33-xCuxMn0.67O2 materials were prepared and investigated for sodium-ion batteries. The introduction of Cu2+ ions improved the capacity retention, cycling stability, and rate performance by stabilizing the P2-phase structure and facilitating reversible capacity based on Cu2+/Cu3+ redox reaction.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Engineering, Environmental

Building superior layered oxide cathode via rational surface engineering for both liquid & solid-state sodium ion batteries

Wei Li et al.

Summary: This study demonstrates the surface stabilization of cathode materials by coating a sodium polyphosphate (NaPO3) layer on P2-type Na0.7MnO2.05, resulting in improved electrode performance. The NaPO3 nanolayer enhances electron transport, stabilizes the structure, and relieves side reactions, leading to enhanced capacity retention and rate capability in both liquid-state and solid-state SIBs.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Chemistry, Physical

Activation of anion redox in P3 structure cobalt-doped sodium manganese oxide via introduction of transition metal vacancies

Eun Jeong Kim et al.

Summary: The study synthesized P3-structure Na0.67Co0.2Mn0.8O2, showing very stable cycling performance in the voltage range of 1.8-3.8 V where the redox couples of transition metals entirely dominate the electrochemical reaction.

JOURNAL OF POWER SOURCES (2021)

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Article Chemistry, Multidisciplinary

A Queue-Ordered Layered Mn-Based Oxides with Al Substitution as High-Rate and High-Stabilized Cathode for Sodium-Ion Batteries

Zelin Ma et al.

Summary: The study introduces a new queue-ordered superstructure in the O ' 3-NaMn0.6Al0.4O2 cathode material, which strengthens the layered structure, reduces the influence from Jahn-Teller effect, and suppresses metal ions migrations during long-term cycles. This leads to high capacity, enhanced rate capability, and excellent cycling performance of the O ' 3-NaMn0.6Al0.4O2 cathode, providing valuable insights for future high-performance sodium-ion storage electrode materials.

SMALL (2021)

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Article Chemistry, Multidisciplinary

Tailoring P2/P3 Biphases of Layered NaxMnO2 by Co Substitution for High-Performance Sodium-Ion Battery

Na Jiang et al.

Summary: The P2/P3-Na0.67Mn0.64Co0.30Al0.06O2 cathode with tunable biphase structures shows excellent rate capability and cycling stability for sodium-ion batteries, attributed to stable crystal structures and fast Na+ diffusion. The study highlights the importance of precisely tailoring phase composition in designing advanced cathode materials.

SMALL (2021)

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Article Chemistry, Physical

Tuning Sodium Occupancy Sites in P2-Layered Cathode Material for Enhancing Electrochemical Performance

Qin-Chao Wang et al.

Summary: The study successfully improved the sodium ion transport and electrochemical performance by adjusting the occupancy ratio of two different sodium sites in P2 layered cathode materials. In situ X-ray absorption spectroscopy revealed charge compensation provided by Mn and Ni redox couples. Sb substitution suppressed phase transition in the high voltage region, ensuring structural stability.

ADVANCED ENERGY MATERIALS (2021)

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Article Chemistry, Physical

Thermally Activated P2-O3 Mixed Layered Cathodes toward Synergistic Electrochemical Enhancement for Na Ion Batteries

Junghoon Yang et al.

Summary: Layer-structured oxide cathodes have various phases depending on Na ion contents, with off-stoichiometry impacting properties like capacity and cyclic stability. Thermal activation process helps maintain stoichiometry, reduce Na ion loss, and improve electrochemical performance of materials.

ADVANCED ENERGY MATERIALS (2021)

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Article Nanoscience & Nanotechnology

Tunable Electrochemical Activity of P2-Na0.6Mn0.7Ni0.3O2-xFx Microspheres as High-Rate Cathodes for High-Performance Sodium Ion Batteries

Wenpei Kang et al.

Summary: In this study, P2-Na0.6Mn0.7Ni0.3O2-xFx oxides were utilized as cathodes for sodium ion batteries, and a doping strategy was adopted to improve battery performance by tuning structure properties. The research revealed that the Na0.6Mn0.7Ni0.3O2-xFx cathode exhibited optimal performance at an x value of 0.05, and showed enhanced electrochemical performance when paired with MoSe2/PC anodes.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Chemistry, Multidisciplinary

Additive-Free Self-Presodiation Strategy for High-Performance Na-Ion Batteries

Feixiang Ding et al.

Summary: This study introduces an additive-free self-presodiation strategy to improve the performance of sodium-ion batteries by creating lattice-coherent cathodes through quenching treatment, resulting in higher energy density and capacity retention.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Pinning Effect Enhanced Structural Stability toward a Zero-Strain Layered Cathode for Sodium-Ion Batteries

Shiyong Chu et al.

Summary: Layered oxides as cathode materials for sodium-ion batteries are being explored for their high capacity and flexible composition. The introduction of Fe3+-pinned Na sites has shown to inhibit slab sliding, resulting in exceptional cycle performance and high rate capability in Na storage layered cathodes.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Physical

Inherent inhibition of oxygen loss by regulating superstructural motifs in anionic redox cathodes

Jiajie Liu et al.

Summary: A universal strategy of improving the reversibility of oxygen redox in sodium layered oxides by regulating superstructural motifs has been reported. A novel cathode comprising both Mg@Mn6 and Li@Mn6 superstructural motifs was designed and synthesized, showing inhibited oxygen loss and significantly improved cyclic reversibility. The findings open up new routes for the design and development of next-generation high energy cathodes with target performance.

NANO ENERGY (2021)

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Article Chemistry, Physical

P2/O3 biphasic Fe/Mn-based layered oxide cathode with ultrahigh capacity and great cyclability for sodium ion batteries

Cong Chen et al.

Summary: By introducing high-proportion Li/Ti co-substitution, a unique Fe/Mn-based layered oxide with a P2/O3 biphasic architecture was successfully designed, offering high capacity and long cycling stability compared to other Fe- and Mn-based cathodes.

NANO ENERGY (2021)

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Article Chemistry, Physical

Sodium superionic conductor NaTi2(PO4)3 surface layer modified P2-type Na2/3Ni1/3Mn2/3O2 as high-performance cathode for sodium-ion batteries

Haiming Li et al.

Summary: The study shows that surface modification of NNMO with NTP solid-state electrolyte can enhance the structural and electrochemical stability of the electrode, improve Na+ diffusion rate and rate capability, thus increasing cycling stability. This coating strategy also has the potential to significantly impact the construction of other cathode materials for sodium-ion batteries.

JOURNAL OF POWER SOURCES (2021)

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Article Chemistry, Physical

Strong oxidation induced quinone-rich dopamine polymerization onto porous carbons as ultrahigh-capacity organic cathode for sodium-ion batteries

Chao Huangfu et al.

Summary: The study involves the synthesis of PC-PDA-APS with high specific capacity and excellent rate performance using a superfast heterogeneous nucleation process. The synergistic effect of a 3D carbon skeleton, ultrathin PDA coating, and high quinone content significantly enhances the performance of sodium-organic cathode.

ENERGY STORAGE MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Nanoengineering of Advanced Carbon Materials for Sodium-Ion Batteries

Shuoqing Zhao et al.

Summary: Using nanoengineering strategies to enhance the electrochemical performance and structural stability of carbon-based anode materials in sodium-ion batteries shows promising potential. Further exploration of improvement methods is necessary to increase the competitiveness of sodium-ion batteries.

SMALL (2021)

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Article Chemistry, Physical

Unlocking the potential of P3 structure for practical Sodium-ion batteries by fabricating zero strain framework for Na+ intercalation

Yuansheng Shi et al.

Summary: This study successfully synthesized phase-pure P3-Na0.75Mg0.08Co0.10Ni0.2Mn0.60O2 cathode material, effectively suppressing the P3-O3 phase transition through the incorporation of Mg, resulting in good cycling performance and rate capability.

ENERGY STORAGE MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Transition-Metal Vacancy Manufacturing and Sodium-Site Doping Enable a High-Performance Layered Oxide Cathode through Cationic and Anionic Redox Chemistry

Qiuyu Shen et al.

Summary: A novel P2-Na0.76Ca0.05[Ni0.230.08Mn0.69]O-2 cathode material with joint cationic and anionic redox activities has been developed, showing enhanced energy density and cycling stability. This research provides new opportunities for designing high-energy-density and high-stability layered sodium oxide cathodes through tuning local chemical environments.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Stabilizing Transition Metal Vacancy Induced Oxygen Redox by Co2+/Co3+ Redox and Sodium-Site Doping for Layered Cathode Materials

Xun-Lu Li et al.

Summary: Anionic redox can boost the energy density of metal-oxide cathodes, but TMO6 subunits are inherently rigid and may not tolerate inner strains induced by lattice glide. A designed material with vacancies in TM sites and Mg ions improves flexibility and stability, maintaining a long voltage plateau at 4.2 V during deep desodiation. The strategy paves the way for highly stable cathode materials with reversible anionic redox for sodium-ion batteries.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Engineering, Environmental

Designing water/air-stable P2-layered cathodes with delayed P2-O2 phase transition by composition and structure engineering for sodium-ion batteries at high voltage

Pengfei Zhou et al.

Summary: Composition designing and structure engineering were combined to design and synthesize a novel Ni2+/Cu2+/Mg2+ co-doped P2-NaMNCuMg with 3D hierarchical structure, which showed good water/air stability, high reversible capacity, and prolonged cycling stability. The P2-NaMNCuMg cathode demonstrated promising potential as a high-performance cathode for high-voltage SIBs.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Chemistry, Physical

Carbon coated NaLi0.2Mn0.8O2 as a superb cathode material for sodium ion batteries

Ngo Quy Quyen et al.

Summary: Adding carbon to the surface of P2-type sodium-lithium-manganese oxide material improves its rate capacity and specific capacity, making the carbon-coated NLM@C material a promising cathode material for sodium-ion batteries.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

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Article Chemistry, Physical

Fast and highly reversible Na+ intercalation/extraction in Zn/Mg dual-doped P2-Na0.67MnO2 cathode material for high-performance Na-ion batteries

Xiaoqin Huang et al.

Summary: The Zn/Mg dual-doped P2-Na0.67MnO2 with lower Mn3+/Mn4+ ratio and higher lattice O content shows improved structural stability and enhanced ion diffusion, leading to high rate performance and decent cycling stability. This co-doping strategy provides a promising avenue for further enhancing the performance of layered Na-ion batteries cathode materials.

NANO RESEARCH (2021)

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Article Multidisciplinary Sciences

Boron-doped sodium layered oxide for reversible oxygen redox reaction in Na-ion battery cathodes

Yu-Jie Guo et al.

Summary: The authors have reported a B-doped cathode active material to mitigate irreversible oxygen oxidation at high voltages, leading to increased cell capacity.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Applied

Fluorine-substituted O3-type NaNi0.4Mn0.25Ti0.3Co0.05O2-xFx cathode with improved rate capability and cyclic stability for sodium-ion storage at high voltage

Chaojin Zhou et al.

Summary: In this study, the effects of F-substitution on the structure and electrochemical performance of NaNi0.4Mn0.25Ti0.3Co0.05O2 were investigated. It was found that optimal F-substitution led to improved rate capability and stability, as well as enhanced Na+ mobility. Additionally, in-situ XRD investigation revealed enhanced structural stability resulting from F-substitution.

JOURNAL OF ENERGY CHEMISTRY (2021)

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Article Chemistry, Physical

Advantageous carbon deposition during the irreversible electrochemical oxidation of Na2C4O4 used as a presodiation source for the anode of sodium-ion systems

Xuexue Pan et al.

Summary: The study demonstrates the use of Na2C4O4 as a sacrificial material for presodiation to address the metal deficiency issue in the anodic material of sodium-ion systems. Na2C4O4 greatly enhances conductivity, leading to high specific energy and excellent capacitance retention.

ENERGY STORAGE MATERIALS (2021)

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Article Green & Sustainable Science & Technology

Carbon-coated single crystal O3-NaFeO2 nanoflakes prepared via topochemical reaction for sodium-ion batteries

Yuhang Zhuang et al.

Summary: Layered O3-NaFeO2 nanoflakes were successfully synthesized via a solvothermal route without using Na2O2 as sodium source. A thin layer of carbon was coated on the nanoflakes to enhance electrode kinetics and structural stability. A full cell with carbon coated NaFeO2//hard carbon showed good cyclability with 81.9% capacity retention after 100 cycles.

SUSTAINABLE MATERIALS AND TECHNOLOGIES (2021)

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Review Chemistry, Multidisciplinary

Recent progress of emerging cathode materials for sodium ion batteries

Jun Xiao et al.

Summary: This review summarizes the recent development of cathode materials for SIBs and modified strategies to improve their electrochemical performance. It also presents critical challenges and perspectives for promoting the development of SIBs.

MATERIALS CHEMISTRY FRONTIERS (2021)

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Article Engineering, Environmental

O3-type NaNi0.5Mn0.5O2 hollow microbars with exposed {010} facets as high performance cathode materials for sodium-ion batteries

Qianjiang Mao et al.

CHEMICAL ENGINEERING JOURNAL (2020)

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Article Chemistry, Multidisciplinary

Hierarchical Engineering of Porous P2-Na2/3Ni1/3Mn2/3O2 Nanofibers Assembled by Nanoparticles Enables Superior Sodium-Ion Storage Cathodes

Yongchang Liu et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Engineering, Environmental

The effects of dual modification on structure and performance of P2-type layered oxide cathode for sodium-ion batteries

Ke Tang et al.

CHEMICAL ENGINEERING JOURNAL (2020)

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Article Chemistry, Analytical

Na0.4(Mn0.33Co0.33Ni0.33)O2 surface grafted with SnO nanorods: A cathode materials for rechargeable sodium ion batteries

J. Richards Joshua et al.

JOURNAL OF ELECTROANALYTICAL CHEMISTRY (2020)

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Article Chemistry, Multidisciplinary

Ultralow-Strain Zn-Substituted Layered Oxide Cathode with Suppressed P2-O2 Transition for Stable Sodium Ion Storage

Yanxia Wang et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Constructing Safe and Durable High-Voltage P2 Layered Cathodes for Sodium Ion Batteries Enabled by Molecular Layer Deposition of Alucone

Karthikeyan Kaliyappan et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Multidisciplinary

High-Performance Manganese Hexacyanoferrate with Cubic Structure as Superior Cathode Material for Sodium-Ion Batteries

Yun Tang et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Multidisciplinary

A Novel NASICON-Type Na4MnCr(PO4)3 Demonstrating the Energy Density Record of Phosphate Cathodes for Sodium-Ion Batteries

Jian Zhang et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Manipulating Layered P2@P3 Integrated Spinel Structure Evolution for High-Performance Sodium-Ion Batteries

Yan-Fang Zhu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Article Chemistry, Multidisciplinary

Deciphering an Abnormal Layered-Tunnel Heterostructure Induced by Chemical Substitution for the Sodium Oxide Cathode

Yao Xiao et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Article Chemistry, Physical

Enhancing the interfacial stability of P2-type cathodes by polydopamine-derived carbon coating for achieving performance improvement

Jiuyang Xia et al.

CARBON (2020)

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Article Engineering, Environmental

AlPO4-coated P2-type hexagonal Na0.7MnO2.05 as high stability cathode for sodium ion battery

Yue Zhang et al.

CHEMICAL ENGINEERING JOURNAL (2020)

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Article Chemistry, Physical

Semiconductor Material ZnO-Coated P2-Type Na2/3Ni1/3Mn2/3O2 Cathode Materials for Sodium-Ion Batteries with Superior Electrochemical Performance

Yuqiang Yang et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2020)

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Article Chemistry, Physical

Stabilizing Reversible Oxygen Redox Chemistry in Layered Oxides for Sodium-Ion Batteries

Xin Cao et al.

ADVANCED ENERGY MATERIALS (2020)

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Review Chemistry, Multidisciplinary

Layered Oxide Cathodes Promoted by Structure Modulation Technology for Sodium-Ion Batteries

Xiao Yao et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Multidisciplinary

A Superlattice-Stabilized Layered Oxide Cathode for Sodium-Ion Batteries

Qi Li et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Physical

Both cationic and anionic redox chemistry in a P2-type sodium layered oxide

Peng-Fei Wang et al.

NANO ENERGY (2020)

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Article Chemistry, Physical

Self-assembled NaV6O15 flower-like microstructures for high-capacity and long-life sodium-ion battery cathode

Yifan Dong et al.

NANO ENERGY (2020)

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Article Chemistry, Multidisciplinary

Revisiting the Na2/3Ni1/3Mn2/3O2 Cathode: Oxygen Redox Chemistry and Oxygen Release Suppression

Yi Zhang et al.

ACS CENTRAL SCIENCE (2020)

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Article Chemistry, Physical

Self-standing P2/P3 heterostructured Na0.7CoO2 nanosheet arrays as 3D cathodes for flexible sodium-ion batteries

Liang Xue et al.

JOURNAL OF POWER SOURCES (2020)

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Article Chemistry, Physical

Insights into the Enhanced Cycle and Rate Performances of the F-Substituted P2-Type Oxide Cathodes for Sodium-Ion Batteries

Kai Liu et al.

ADVANCED ENERGY MATERIALS (2020)

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Article Chemistry, Physical

High-Voltage Oxygen-Redox-Based Cathode for Rechargeable Sodium-Ion Batteries

Aishuak Konarov et al.

ADVANCED ENERGY MATERIALS (2020)

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Article Chemistry, Physical

The Sodium Storage Mechanism in Tunnel-Type Na0.44MnO2 Cathodes and the Way to Ensure Their Durable Operation

Munseok S. Chae et al.

ADVANCED ENERGY MATERIALS (2020)

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Article Nanoscience & Nanotechnology

Symmetric Sodium-Ion Battery Based on Dual-Electron Reactions of NASICON-Structured Na3MnTi(PO4)3 Material

Yu Zhou et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Article Nanoscience & Nanotechnology

Cu-Doped P2-Na0.7Mn0.9Cu0.1O2 Sodium-Ion Battery Cathode with Enhanced Electrochemical Performance: Insight from Water Sensitivity and Surface Mn(II) Formation Studies

Jianyin Wang et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Article Chemistry, Multidisciplinary

High-Efficiency Cathode Sodium Compensation for Sodium-Ion Batteries

Yu-Bin Niu et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Realizing Complete Solid-Solution Reaction in High Sodium Content P2-Type Cathode for High-Performance Sodium-Ion Batteries

Ting Jin et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

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Article Chemistry, Physical

Superiority of native vacancies in activating anionic redox in P2-type Na2/3[Mn7/9Mg1/9□1/9]O2

Lu Yang et al.

NANO ENERGY (2020)

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Article Nanoscience & Nanotechnology

Deciphering the Origin of High Electrochemical Performance in a Novel Ti-Substituted P2/O3 Biphasic Cathode for Sodium-Ion Batteries

Bei Hu et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Article Chemistry, Multidisciplinary

Anion-Cation Synergetic Contribution to High Capacity, Structurally Stable Cathode Materials for Sodium-Ion Batteries

Hang Xu et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Chemistry, Multidisciplinary

A Co- and Ni-Free P2/O3 Biphasic Lithium Stabilized Layered Oxide for Sodium-Ion Batteries and its Cycling Behavior

Liangtao Yang et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

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Article Multidisciplinary Sciences

The stability of P2-layered sodium transition metal oxides in ambient atmospheres

Wenhua Zuo et al.

NATURE COMMUNICATIONS (2020)

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Article Chemistry, Physical

Understanding the Capacity Fading Mechanisms of O3-Type Na[Ni0.5Mn0.5]O2Cathode for Sodium-Ion Batteries

Tae-Yeon Yu et al.

ADVANCED ENERGY MATERIALS (2020)

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Article Chemistry, Physical

Anomalous Sodium Storage Behavior in Al/F Dual-Doped P2-Type Sodium Manganese Oxide Cathode for Sodium-Ion Batteries

Munseok S. Chae et al.

ADVANCED ENERGY MATERIALS (2020)

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Article Chemistry, Multidisciplinary

Dual-Strategy of Cation-Doping and Nanoengineering Enables Fast and Stable Sodium-Ion Storage in a Novel Fe/Mn-Based Layered Oxide Cathode

Qiuyu Shen et al.

ADVANCED SCIENCE (2020)

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Article Chemistry, Physical

Stabilizing P3-Type Oxides as Cathodes for High-Rate and Long-Life Sodium Ion Batteries by Disordered Distribution of Transition Metals

Li Zhang et al.

SMALL METHODS (2020)

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Article Engineering, Environmental

Construction nasicon-type NaTi2(PO4)3 nanoshell on the surface of P2-type Na0 .67Co0.2Mn0.8O2 cathode for superior room/low-temperature sodium storage

Yong Li et al.

CHEMICAL ENGINEERING JOURNAL (2020)

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Article Chemistry, Physical

Insights of the anionic redox in P2-Na0.67Ni0.33Mn0.67O2

Wenhua Zuo et al.

NANO ENERGY (2020)

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Article Multidisciplinary Sciences

Rational design of layered oxide materials for sodium-ion batteries

Chenglong Zhao et al.

SCIENCE (2020)

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Article Chemistry, Physical

Na2.3Cu1.1Mn2O7-δ nanoflakes as enhanced cathode materials for high-energy sodium-ion batteries achieved by a rapid pyrosynthesis approach

Vaiyapuri Soundharrajan et al.

JOURNAL OF MATERIALS CHEMISTRY A (2020)

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Article Chemistry, Physical

Understanding the Multiple Effects of TiO2 Coating on NaMn0.33Fe0.33Ni0.33O2 Cathode Material for Na-Ion Batteries

Yang Yu et al.

ACS APPLIED ENERGY MATERIALS (2020)

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Article Chemistry, Physical

A New P2-Type Layered Oxide Cathode with Extremely High Energy Density for Sodium-Ion Batteries

Jang-Yeon Hwang et al.

ADVANCED ENERGY MATERIALS (2019)

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Article Chemistry, Physical

A Stable Layered Oxide Cathode Material for High-Performance Sodium-Ion Battery

Yao Xiao et al.

ADVANCED ENERGY MATERIALS (2019)

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Article Nanoscience & Nanotechnology

Polypyrrole-Coated Sodium Manganate Hollow Microspheres as a Superior Cathode for Sodium Ion Batteries

Di Lu et al.

ACS APPLIED MATERIALS & INTERFACES (2019)

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Article Chemistry, Multidisciplinary

Lithium-Doping Stabilized High-Performance P2-Na0.66Li0.18Fe0.12Mn0.7O2 Cathode for Sodium Ion Batteries

Lufeng Yang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

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Article Nanoscience & Nanotechnology

Probing the Structural Transition Kinetics and Charge Compensation of the P2-Na0.78Al0.05Ni0.33Mn0.60O2 Cathode for Sodium Ion Batteries

Yuansheng Shi et al.

ACS APPLIED MATERIALS & INTERFACES (2019)

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Review Chemistry, Multidisciplinary

Strategies to Build High-Rate Cathode Materials for Na-Ion Batteries

Wei-Jun Lv et al.

CHEMNANOMAT (2019)

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Article Engineering, Environmental

Improved cycle and air stability of P3-Na0.65Mn0.75Ni0.25O2 electrode for sodium-ion batteries coated with metal phosphates

Yu Wang et al.

CHEMICAL ENGINEERING JOURNAL (2019)

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Article Electrochemistry

A P2/O3 biphasic cathode material with highly reversibility synthesized by Sn-substitution for Na-ion batteries

Ranran Li et al.

ELECTROCHIMICA ACTA (2019)

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Article Chemistry, Physical

Restraining Oxygen Loss and Suppressing Structural Distortion in a Newly Ti-Substituted Layered Oxide P2-Na0.66Li0.22Ti0.15Mn0.63O2

Xin Cao et al.

ACS ENERGY LETTERS (2019)

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Article Chemistry, Multidisciplinary

Ti Substitution Facilitating Oxygen Oxidation in Na2/3Mg1/3Ti1/6Mn1/2O2 Cathode

Chenglong Zhao et al.

CHEM (2019)

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Article Chemistry, Multidisciplinary

A Simple Electrode-Level Chemical Presodiation Route by Solution Spraying to Improve the Energy Density of Sodium-Ion Batteries

Xiaoxiao Liu et al.

ADVANCED FUNCTIONAL MATERIALS (2019)

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Article Chemistry, Multidisciplinary

O3-Type Layered Ni-Rich Oxide: A High-Capacity and Superior-Rate Cathode for Sodium-Ion Batteries

Jun Yang et al.

SMALL (2019)

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Article Nanoscience & Nanotechnology

Ultralong Layered NaCrO2 Nanowires: A Competitive Wide-Temperature-Operating Cathode for Extraordinary High-Rate Sodium-Ion Batteries

Longwei Liang et al.

ACS APPLIED MATERIALS & INTERFACES (2019)

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Article Chemistry, Multidisciplinary

A Hydrostable Cathode Material Based on the Layered P2@P3 Composite that Shows Redox Behavior for Copper in High-Rate and Long-Cycling Sodium-Ion Batteries

Zichao Yan et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

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Article Chemistry, Physical

Understanding the synergic roles of MgO coating on the cycling and rate performance of Na0.67Mn0.5Fe0.5O2 cathode

Weijin Kong et al.

APPLIED SURFACE SCIENCE (2019)

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Article Chemistry, Multidisciplinary

Tuning P2-Structured Cathode Material by Na-Site Mg Substitution for Na-Ion Batteries

Qin-Chao Wang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2019)

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Article Chemistry, Physical

A P2/P3 composite layered cathode for high-performance Na-ion full batteries

Ya-Nan Zhou et al.

NANO ENERGY (2019)

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Article Chemistry, Multidisciplinary

Rational Design of a P2-Type Spherical Layered Oxide Cathode for High-Performance Sodium-Ion Batteries

Jun Xiao et al.

ACS CENTRAL SCIENCE (2019)

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Article Chemistry, Physical

Anionic Redox Reaction-Induced High-Capacity and Low-Strain Cathode with Suppressed Phase Transition

Xiaohui Rong et al.

JOULE (2019)

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Article Chemistry, Physical

An ion conductive polyimide encapsulation: New insight and significant performance enhancement of sodium based P2 layered cathodes

Karthikeyan Kaliyappan et al.

ENERGY STORAGE MATERIALS (2019)

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Article Materials Science, Multidisciplinary

Insights into the Improved Chemical Stability against Water of LiF-Incorporated Layered Oxide Cathodes for Sodium-Ion Batteries

Ya You et al.

ACS MATERIALS LETTERS (2019)

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Review Chemistry, Physical

Layered Oxide Cathodes for Sodium-Ion Batteries: Phase Transition, Air Stability, and Performance

Peng-Fei Wang et al.

ADVANCED ENERGY MATERIALS (2018)

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Article Chemistry, Multidisciplinary

High Tap Density Co and Ni Containing P2-Na0.66MnO2 Buckyballs: A Promising High Voltage Cathode for Stable Sodium-Ion Batteries

Karthikeyan Kaliyappan et al.

ADVANCED FUNCTIONAL MATERIALS (2018)

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Article Chemistry, Multidisciplinary

Sodium-Ion Batteries: Building Effective Layered Cathode Materials with Long-Term Cycling by Modifying the Surface via Sodium Phosphate

Jae Hyeon Jo et al.

ADVANCED FUNCTIONAL MATERIALS (2018)

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Article Chemistry, Physical

Self-supported Na0.7CoO2 nanosheet arrays as cathodes for high performance sodium ion batteries

Lin Gao et al.

JOURNAL OF POWER SOURCES (2018)

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Article Materials Science, Multidisciplinary

Multi-electron reaction materials for sodium-based batteries

Feixiang Wu et al.

MATERIALS TODAY (2018)

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Article Chemistry, Physical

Bioinspired Surface Layer for the Cathode Material of High-Energy-Density Sodium-Ion Batteries

Chang-Heum Jo et al.

ADVANCED ENERGY MATERIALS (2018)

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Article Chemistry, Physical

A Layered-Tunnel Intergrowth Structure for High-Performance Sodium-Ion Oxide Cathode

Yao Xiao et al.

ADVANCED ENERGY MATERIALS (2018)

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Article Chemistry, Multidisciplinary

Exposing {010} Active Facets by Multiple-Layer Oriented Stacking Nanosheets for High-Performance Capacitive Sodium-Ion Oxide Cathode

Yao Xiao et al.

ADVANCED MATERIALS (2018)

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Simultaneous MgO coating and Mg doping of Na[Ni0.5Mn0.5]O-2 cathode: facile and customizable approach to high-voltage sodium-ion batteries

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Tunnel-structured Na0.66[Mn0.66Ti0.34]O2-xFx (x < 0.1) cathode for high performance sodium-ion batteries

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Resolving the degradation pathways of the O3-type layered oxide cathode surface through the nano-scale aluminum oxide coating for high-energy density sodium-ion batteries

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Enhanced Performance of P2-Na0.66(Mn0.54Co0.13Ni0.13)O2 Cathode for Sodium-Ion Batteries by Ultrathin Metal Oxide Coatings via Atomic Layer Deposition

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Dual Stabilization and Sacrificial Effect of Na2CO3 for Increasing Capacities of Na-Ion Cells Based on P2-NaxMO2 Electrodes

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A Practical High-Energy Cathode for Sodium-Ion Batteries Based on Uniform P2-Na0.7CoO2 Microspheres

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Novel Cathode Materials for Na-Ion Batteries Composed of Spoke-Like Nanorods of Na[Ni0.61Co0.12Mn0.27]O2 Assembled in Spherical Secondary Particles

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Layered P2-Na2/3[Ni1/3Mn2/3]O2 as high-voltage cathode for sodium-ion batteries: The capacity decay mechanism and Al2O3 surface modification

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A Layered P2-and O3-Type Composite as a High-Energy Cathode for Rechargeable Sodium-Ion Batteries

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