Unlocking the Interfacial Adsorption-Intercalation Pseudocapacitive Storage Limit to Enabling All-Climate, High Energy/Power Density and Durable Zn-Ion Batteries

Article Chemistry, Multidisciplinary

Localizing Oxygen Lattice Evolutions Eliminates Oxygen Release and Voltage Decay in All-Mn-Based Li-Rich Cathodes

Kang Wu et al.

Summary: Introducing stacking-fault defects can localize oxygen lattice evolutions and stabilize the anionic redox reaction, eliminating oxygen releases and improving the reversibility and cycling stability of Li2MnO3 cathodes.

SMALL (2023)

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Article Chemistry, Physical

Unexpectedly High Cycling Stability Induced by a High Charge Cut-Off Voltage of Layered Sodium Oxide Cathodes

Qiuyu Shen et al.

Summary: Initiating anionic redox chemistry in layered sodium oxide cathodes is a prevalent method to break the capacity limit set by traditional transition metal redox. This study uncovers a Mn activation mechanism in a novel P2-Na0.80Li0.08Ni0.22Mn0.67O2 cathode, which achieves high discharge capacity and long cycling life by triggering anionic redox and reducing Mn through oxygen loss. The work elucidates the charge compensation mechanism and expands the horizons of oxygen redox chemistry for high-performance layered oxide cathode materials in sodium-ion batteries.

ADVANCED ENERGY MATERIALS (2023)

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Article Chemistry, Physical

Uncovering the Fundamental Role of Interlayer Water in Charge Storage for Bilayered V2O5•nH2O Xerogel Cathode Materials

Qiangchao Sun et al.

Summary: Interlayer engineering is a promising strategy to modify the structure of layered vanadium-based oxides for optimized ion-diffusion capability. This study explores the role of interlayer crystal water in tuning the charge storage properties and finds that regulating interlayer water content can enhance the reversibility of zinc ion diffusion and improve the cycling stability of V2O5·nH2O electrodes. Density functional theory calculations suggest that modulated electron structure in V2O5·nH2O materials provides a favorable electrostatic environment for reversible Zn2+ diffusion.

ADVANCED ENERGY MATERIALS (2023)

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Editorial Material Chemistry, Physical

A path forward for the translational development of aqueous zinc-ion batteries

Yuan Shang et al.

JOULE (2023)

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Article Chemistry, Physical

Cobalt-doped MoS2•nH2O nanosheets induced heterogeneous phases as high-rate capability and long-term cyclability cathodes for wearable zinc-ion batteries

Fan Liu et al.

Summary: An effective strategy of cobalt-doped MoS2 nanosheets directly grown on carbon nanotube fibers was proposed to develop efficient cathodes for fiber-shaped aqueous zinc-ion batteries (FAZIBs). The introduction of cobalt-ion activates the transformation of MoS2 crystal structure and expands the interlayer spacing, resulting in remarkable capacity, high rate capability, and impressive durability.

ENERGY STORAGE MATERIALS (2023)

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Article Chemistry, Multidisciplinary

Reversible Ammonium Ion Intercalation/de-intercalation with Crystal Water Promotion Effect in Layered VOPO4•2H2O

Fei Ye et al.

Summary: The non-metal NH4+ carrier is attracting a lot of interest for aqueous energy storage due to its light molar mass and fast diffusion in aqueous electrolytes. Previous studies suggested that NH4+ ion storage in layered VOPO4 center dot 2H2O was impossible due to a phase change caused by the removal of NH4+ from NH4VOPO4. However, this belief has been updated and highly reversible intercalation/de-intercalation behavior of NH4+ in layered VOPO4 center dot 2H2O has been demonstrated. The results provide new insight into the intercalation/deintercalation of NH4+ ions in layered hydrated phosphates through crystal water enhancement effect.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2023)

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Article Engineering, Environmental

Unveiling the effect of structural water on Zn-ion storage of polyoxovanadate for high-rate and long-life aqueous zinc ion battery

Huan He et al.

Summary: This study develops a cathode material called NVO with controllable structural water for zinc-ion storage, which improves ion transport and enables fast storage. The NVO-2.6 cathode exhibits high structural stability and multi-electron redox ability, leading to high performance in terms of specific capacity and long-term cyclability.

CHEMICAL ENGINEERING JOURNAL (2023)

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Article Chemistry, Multidisciplinary

Defect engineering of vanadium-based electrode materials for zinc ion battery

Ying Liu et al.

Summary: With the rapid development of sustainable energy sources, aqueous zinc-ion batteries (AZIBs) have emerged as a highly promising energy storage technology. The construction of suitable electrode materials is crucial for improving the overall performance of AZIBs. Recent research has focused on the modification of vanadium-based cathodes, exploring defect engineering strategies such as oxygen defects, cation vacancies, and heterogeneous doping. The effects of these defects on the electrochemical performance of electrode materials are discussed, along with future challenges and development directions for V-based cathode materials.

CHINESE CHEMICAL LETTERS (2023)

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Article Chemistry, Physical

Regulating Na Occupation in P2-Type Layered Oxide Cathode for All-Climate Sodium-Ion Batteries

Siying Liu et al.

Summary: By accommodating more Na ions at the e-site in P2-type NNMO, P2-type layered oxides with outstanding electrochemical performance are obtained. This work provides a fundamental understanding of the Na-storage mechanism and offers a universal strategy to improve the rate and cycling life of P2-type layered oxide cathode materials.

ADVANCED ENERGY MATERIALS (2023)

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Article Chemistry, Physical

Initiating Jahn-Teller Effect in Vanadium Diselenide for High Performance Magnesium-Based Batteries Operated at-40 °C

Xin Xu et al.

Summary: A layer-structured metallic vanadium diselenide (1T-VSe2) is reported as a cathode material for low-temperature Mg2+/Li+ hybrid batteries, demonstrating high electronic conductivity and fast ion diffusion kinetics. The 1T-VSe2/Mg battery shows excellent safety and exhibits better performance than reported Mg-based batteries, with 97% capacity retention over 500 cycles. The weak Jahn-Teller distortion in 1T-VSe2 contributes significantly to its fast kinetics, structural stability, and high electronic conductivity.

ADVANCED ENERGY MATERIALS (2023)

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Article Chemistry, Multidisciplinary

2D Dynamic Heterogeneous Interface Coupling Endowing Extra Zn2+ Storage

Baoquan Xiao et al.

Summary: In situ liquid-phase growth exfoliation is developed to obtain V5O12 nanosheets, which are then combined with Ti3C2 nanosheets to construct a 2D heterostructure HVO@Ti3C2. The dynamic interface coupling during discharging/charging provides a reversible electron transfer channel and promotes the insertion of more Zn2+, leading to an ultra-high capacity and high stability in AZIBs. This interface coupling mechanism provides an exciting strategy for the high energy density and high stability of AZIBs.

ADVANCED FUNCTIONAL MATERIALS (2023)

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Article Chemistry, Multidisciplinary

Comprehensively Understanding the Role of Anion Vacancies on K-Ion Storage: A Case Study of Se-Vacancy-Engineered VSe2

Dawei Sha et al.

Summary: Anion vacancy engineering (AVE) is commonly used to improve the Li-ion and Na-ion storage of conversion-type anode materials. However, the role of anion vacancies and their effects on K+ storage in K-ion batteries are still not well understood. In this study, Se vacancies are intentionally introduced into VSe2 to investigate their effect on K+ storage and it is found that Se vacancies have a positive impact on the performance of the material.

ADVANCED MATERIALS (2023)

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Article Chemistry, Physical

Double-layer phosphates coated Mn-based oxide cathodes for highly stable potassium-ion batteries

Hong Wang et al.

Energy Storage Materials (2023)

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Article Electrochemistry

Hybrid working mechanism enables highly reversible Zn electrodes

Libei Yuan et al.

Summary: In this study, a boron nitride (BN)/Nafion layer is reported on the surface of zinc, which efficiently addresses the issues of zinc dendrite growth and water-related side reactions by combining the working mechanisms of solid/electrolyte interphase (SEI) and nucleation layers. The protective layer provides a dendrite-free and side-reaction-free zinc electrode with a preferred deposition orientation. The zinc electrode with the protective layer exhibits high reversibility and excellent performance in full cells.

ESCIENCE (2023)

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Review Electrochemistry

Pre-intercalation Strategies to Layered Vanadium-based Electrode Materials for Aqueous Zinc Batteries

Yi Liu et al.

Summary: Aqueous zinc-ion batteries (AZIBs) are considered as potential alternatives to lithium-ion batteries (LIBs) due to their safety, convenience, and environmental friendliness. However, the use of vanadium-based compounds as cathodes for AZIBs often leads to dissolution and large volume changes. The pre-insertion strategy of guest ions or molecules provides an effective solution to this problem.

BATTERIES & SUPERCAPS (2023)

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Article Chemistry, Multidisciplinary

Surface Selenization Strategy for V2CTx MXene toward Superior Zn-Ion Storage

Dawei Sha et al.

Summary: This study presents a facile surface selenization strategy for the development of MXene-based nanohybrids with high capacity and excellent structural stability. Experimental and simulation results show that the superior performance of the selenized MXenes is attributed to the engaging integration of V2CTx and VSe2, which significantly improves the zinc ion diffusion coefficient and provides sufficient structural stability for long-term cycling.

ACS NANO (2022)

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Article Chemistry, Multidisciplinary

Hydrated Deep Eutectic Electrolytes for High-Performance Zn-Ion Batteries Capable of Low-Temperature Operation

Xidong Lin et al.

Summary: This study developed a novel hydrated deep eutectic electrolyte (DEE) to improve the performance and stability of ZIBs, extending their lifespan. The DEE significantly suppresses dendrite formation and allows for long cycling stability at different temperatures, showing great potential for inexpensive and high-performance ZIBs.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Redox-Active Metaphosphate-Like Terminals Enable High-Capacity MXene Anodes for Ultrafast Na-Ion Storage

Boya Sun et al.

Summary: This study reports on the construction of redox-active phosphorus-oxygen terminals as an attractive strategy to significantly enhance the specific capacities of Nb4C3 MXenes for ultrafast Na+ storage. The molecular-level design of MXene terminals provides opportunities for developing high-capacity and fast-charging electrodes, alleviating the energy-power tradeoff typical for energy-storage devices.

ADVANCED MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Vacancy Modulating Co3Sn2S2 Topological Semimetal for Aqueous Zinc-Ion Batteries

Yuwei Zhao et al.

Summary: Weyl semimetal Co3Sn1.8S2 as a cathode material for AZIBs exhibits excellent performance in Zn-ion transport and storage capabilities. By introducing Sn vacancies, the material enhances Zn2+ transfer channels and active sites, promoting charge storage kinetics.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

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Review Nanoscience & Nanotechnology

Interfacial Engineering Strategy for High-Performance Zn Metal Anodes

Bin Li et al.

Summary: This article reviews the role of interfacial engineering in inhibiting the growth of Zn dendrites and the occurrence of side reactions. Researchers have regulated the deposition behavior of Zn ions through surface modification and the addition of electrolyte additives to achieve uniform Zn nucleation and flat Zn deposition, improving the cycling stability of Zn anodes.

NANO-MICRO LETTERS (2022)

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Article Nanoscience & Nanotechnology

Enhanced Electrochemical Performance of Zn/VOx Batteries by a Carbon-Encapsulation Strategy

Ying Liu et al.

Summary: This study reports the use of carbon-encapsulated VOx microspheres, grown by controlling the calcination temperature, as ideal cathode materials for aqueous zinc ion batteries. These batteries exhibit high specific capacity and reversible rate performance, and also demonstrate favorable mechanical and cycle stability.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Chemistry, Multidisciplinary

Robust Lithium-Sulfur Batteries Enabled by Highly Conductive WSe2-Based Superlattices with Tunable Interlayer Space

Chaoqi Zhang et al.

Summary: This study reports a simple solution-based method to produce organic-inorganic superlattices and demonstrates their tunable interlayer space through the pyrolysis of organic compounds. These superlattices are shown to be excellent sulfur hosts in lithium-sulfur batteries, enabling high sulfur usages, superior rate performance, and outstanding cycling stability.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Regulating the Electrolyte Solvation Structure Enables Ultralong Lifespan Vanadium-Based Cathodes with Excellent Low-Temperature Performance

Dao-Sheng Liu et al.

Summary: A novel 3 m Zn(CF3SO3)2 electrolyte was used to improve the cycling performance and specific capacity of aqueous vanadium-based zinc-ion batteries. By manipulating the solvation structure of the electrolyte, the batteries showed super-stable cycling performance and high specific capacity.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Chemistry, Physical

Unexpected Role of the Interlayer Dead Zn2+ in Strengthening the Nanostructures of VS2 Cathodes for High-Performance Aqueous Zn-Ion Storage

Yan Tan et al.

Summary: This study develops distinctive hierarchitectures of 1T-VS2 nanospheres assembled by nanosheets, which feature abundant active sites, superior electron/ion transport property, and robust structure. The reinforcement of the layered structure of VS2 through Zn2+ pillars residing in VS2 interlayers is proven to be effective. The rapid and highly reversible Zn-ion intercalation behavior within the VS2 nanospheres is verified, and exceptional rate performance and ultralong cycling life are achieved. This work provides new perspectives for prolonging the lifespan of layered Zn-storage materials by modulating the charge/discharge processes.

ADVANCED ENERGY MATERIALS (2022)

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Article Chemistry, Applied

Anti-aggregation growth and hierarchical porous carbon encapsulation enables the C@VO2 cathode with superior storage capability for aqueous zinc-ion batteries

Ming Yang et al.

Summary: In this work, a C@VO2 composite was constructed via anti-aggregation growth and hierarchical porous carbon encapsulation to improve the electrochemical performance of aqueous zinc-ion batteries (AZIBs). The morphology and pore structure of the composite can be regulated by tuning the adding amount of glucose. The C@VO2-3:3 composite delivered a high capacity of 281 mAh g-1 at 0.2 A g-1 as a cathode for AZIBs, and exhibited remarkable rate capability and cyclic stability. The evolution of crystal structure, valence state, and transport kinetics upon cycling was also investigated. The synergistic effect of anti-aggregation morphology and hierarchical porous carbon encapsulation in the C@VO2 composite enhances the ion accessible site and transport kinetics, resulting in superior storage performance. This design concept can be applied to other types of electrode materials, accelerating the development of high-performance AZIBs.

JOURNAL OF ENERGY CHEMISTRY (2022)

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Article Chemistry, Physical

Conformal surface-nanocoating strategy to boost high-performance film cathodes for flexible zinc-ion batteries as an amphibious soft robot

Jie Yang et al.

Summary: To satisfy the growing demand for power in wearable and portable devices, the design of flexible electrodes is crucial for improving the performance of quasi-solid-state zinc-ion batteries (QAZIBs). This study demonstrates the use of electrospinning and atomic-layer-deposition to enhance the electrochemical properties of flexible film cathodes. The results show that the QAZIBs exhibit high energy density, excellent rate capability, and good cycling performance. The integration of the flexible QAZIBs into a soft inchworm robot further demonstrates their potential applications in soft robotics.

ENERGY STORAGE MATERIALS (2022)

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Article Chemistry, Physical

High performance aqueous zinc battery enabled by potassium ion stabilization

Yi Liu et al.

Summary: In this study, a highly durable zinc ion battery was assembled by intercalating K+ into V2O5 nanolayers, addressing the issues of slow diffusion kinetics of Zn2+ and poor cathode circulation. The battery demonstrated excellent cyclic stability and maintained high specific capacity at high working temperature.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Nanoscience & Nanotechnology

Defect Engineered Ternary Spinel: An Efficient Cathode for an Aqueous Rechargeable Zinc-Ion Battery of Long-Term Cyclability

Sourav Mallick et al.

Summary: The rational defect engineering of Mn-based spinel cathode materials by metal-ion doping and vacancy creation improves the performance and cycling stability of aqueous rechargeable zinc-ion batteries. The defect-engineered ternary spinel cathode based on Zn, Ni, and Mn shows enhanced Zn2+ ion storage performance with a specific capacity as high as 265 mAh g(-1), and a 2-fold enhancement in specific capacity after 5000 cycles.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Chemistry, Multidisciplinary

A Volume Self-Regulation MoS2 Superstructure Cathode for Stable and High Mass-Loaded Zn-Ion Storage

Zeying Yao et al.

Summary: This paper presents the design of a multifunctional superlattice cathode structure, MoS2/C(19)H(4)2N(+) (CTAB), which overcomes the problems of slow kinetics and large volume changes associated with zinc-ion batteries. The cathode incorporates soft organic CTAB into a rigid MoS2 host, enabling efficient transport of Zn2+ and structural stability. This optimized superlattice cathode exhibits high-rate performance, long-term cycling stability, and flexibility in a pouch cell, making it a promising candidate for practical applications.

ACS NANO (2022)

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Review Chemistry, Physical

Recent Advances of Transition Metal Sulfides/Selenides Cathodes for Aqueous Zinc-Ion Batteries

Honglei Shuai et al.

Summary: This review categorizes and highlights various modification strategies, including phase engineering, defect engineering, interlayer intercalation, in situ electrochemical oxidation, hybridization, doping effects, and surface modification, to improve the electrochemical properties of transition metal sulfides and selenides cathode materials for aqueous ZIBs. Furthermore, key breakthrough directions for further development of aqueous ZIBs are proposed.

ADVANCED ENERGY MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Synergistic Engineering of Se Vacancies and Heterointerfaces in Zinc-Cobalt Selenide Anode for Highly Efficient Na-Ion Batteries

Ying Xiao et al.

Summary: This study successfully improves the Na+ storage performance of transition metal selenides anode through Se vacancies and heterostructure engineering. The constructed batteries exhibit high initial Coulombic efficiency, remarkable specific capacities and rate capability, as well as ultrastable long-term stability.

SMALL (2022)

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Article Chemistry, Physical

In Situ Induced Coordination between a Desiccant Interphase and Oxygen-Deficient Navajoite towards Highly Efficient Zinc Ion Storage

Jiangtao Huang et al.

Summary: The poor zinc storage performance of vanadium-based cathode materials is effectively addressed using an in situ electrochemical conversion strategy. The reconstructed cathode material, labeled as GP-HVOd, exhibits stable capacity, excellent cycling stability, and high rate performance, thanks to the gypsum layer and oxygen defects.

ADVANCED ENERGY MATERIALS (2022)

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Article Chemistry, Physical

2D Non-Van Der Waals Transition-Metal Chalcogenide Layers Derived from Vanadium-Based MAX Phase for Ultrafast Zinc Storage

Zhiguo Du et al.

Summary: A facile approach to produce 2D non-vdW transition-metal chalcogenide (TMC) layers based on the conversion of vanadium-based MAX phase was developed in high temperatures in hydrogen sulfide gas. The resulting V3S4 layers exhibited high reversible capacity, good rate capabilities, and long-term cycling performance for zinc storage, indicating potential applications in energy storage.

ADVANCED ENERGY MATERIALS (2022)

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Review Chemistry, Physical

Progress in interface structure and modification of zinc anode for aqueous batteries

Runzhi Qin et al.

Summary: Rechargeable aqueous zinc-ion batteries face the challenge of poor cycling performance of the zinc anode, and the strategy of interface modification on the zinc anode has been explored as a solution. This article provides an overview of the methods, structures, mechanisms, and technical issues of zinc anode interface modification, and presents prospects for future development.

NANO ENERGY (2022)

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Article Chemistry, Multidisciplinary

Realizing All-Climate Li-S Batteries by Using a Porous Sub-Nano Aromatic Framework

Jie Xu et al.

Summary: In this study, an all-climate lithium-sulfur (Li-S) battery is proposed using an ether-based electrolyte and a modified separator with a porous sub-nano aromatic framework (SAF-3). The SAF-3 effectively blocks polysulfides shuttling at high temperatures and enhances polysulfides conversion at low temperatures. The modified cells exhibit good performance in a wide temperature range (-40 to 60 degrees C) and retain 90% capacity after 100 cycles under high-sulfur loading and lean electrolyte conditions at room temperature.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022)

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Article Engineering, Environmental

Sodium ion stabilized ammonium vanadate as a high-performance aqueous zinc-ion battery cathode

Xuri Wang et al.

Summary: A nonstoichiometric Na-0.3(NH4)(0.6)V4O10 center dot 0.4H(2)O(NVO-Na) cathode material was developed for aqueous zinc ion batteries (AZIBs), which enhances the diffusion kinetic and keeps the layer structure stable. The NVO-Na cathode exhibits impressive specific capacity and excellent capacity retention, showing promise for high-performance AZIBs cathode materials.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Engineering, Environmental

High-capacity zinc vanadium oxides with long-term cyclability enabled by in-situ electrochemical oxidation as zinc-ion battery cathode

Xi Zhang et al.

Summary: Rechargeable aqueous zinc ion batteries are promising due to their non-flammability and low cost, but the lack of suitable cathode materials has been a limitation. This study reports the use of stable zinc vanadium oxides as cathode material, with improved conductivity and stability through the introduction of zinc atoms. The comprehensive performance of the batteries has been greatly optimized.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Physical

Aqueous zinc-ion batteries at extreme temperature: Mechanisms, challenges, and strategies

Minghua Chen et al.

Summary: This review comprehensively explores the performance degradation mechanisms and challenges of aqueous zinc-ion batteries (AZIBs) under extreme temperature, and summarizes effective strategies to overcome these obstacles and optimize electrochemical performance, providing guidance for their application in energy storage systems and wearable devices.

ENERGY STORAGE MATERIALS (2022)

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Article Chemistry, Physical

Laser-radiated tellurium vacancies enable high-performance telluride molybdenum anode for aqueous zinc-ion batteries

Yiqun Du et al.

Summary: Metal-free MoTe1.7 electrode prepared by laser reduction improves the performance of aqueous zinc-ion batteries by enhancing capacity, stability, and cycling life. This finding is expected to advance the development of rechargeable aqueous zinc-ion batteries.

ENERGY STORAGE MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Mixed-Valence Copper Selenide as an Anode for Ultralong Lifespan Rocking-Chair Zn-Ion Batteries: An Insight into its Intercalation/Extraction Kinetics and Charge Storage Mechanism

Yang Yang et al.

Summary: A mixed-valence Cu2-xSe anode is proposed for ZIBs, showing enhanced coulombic efficiency and long cycle life. The introduction of low-valence Cu improves Zn(2+) ion storage and optimizes electronic interactions, leading to favorable intercalation formation energy and reduced diffusion barrier. This study provides new opportunities for high-performance rechargeable aqueous ZIBs.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Chemistry, Multidisciplinary

A Superlattice-Stabilized Layered CuS Anode for High-Performance Aqueous Zinc-Ion Batteries

Jiaqian Zhang et al.

Summary: In this study, a periodically stacked CuS-CTAB superlattice was demonstrated as a competitive conversion-type anode for AZIBs, showing significantly improved specific capacity, rate performance, and stability. The CuS layers react with Zn2+ to provide high capacity, while the CTAB layers stabilize the structure and enhance Zn2+ diffusion kinetics. The CuS-CTAB anode exhibited superior rate performance and respectable cyclability, making it a promising candidate for high-performance AZIBs.

ACS NANO (2021)

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Article Chemistry, Multidisciplinary

Confining Aqueous Zn-Br Halide Redox Chemistry by Ti3C2Tx MXene

Xinliang Li et al.

Summary: This study introduces an advanced aqueous zinc redox battery by incorporating an electrochemically active parasite Br-2 into the Ti3C2Tx MXene host. The battery delivers efficient output capability in the high-voltage region and shows excellent cycling performance at low temperatures.

ACS NANO (2021)

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Article Engineering, Environmental

MOF derived TiO2 with reversible magnesium pseudocapacitance for ultralong-life Mg metal batteries

Xinyin Cai et al.

Summary: Magnesium metal batteries with TiO2 cathodes derived from Ti-MOF exhibit high capacity retention and long cycling life, attributed to the high pseudocapacitive performance and ion migration facilitated by the carbon skeleton in the TiO2 cathode.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Chemistry, Physical

Nanohybrid engineering of the vertically confined marigold structure of rGO-VSe2 as an advanced cathode material for aqueous zinc-ion battery

Mugilan Narayanasamy et al.

Summary: The study successfully synthesized marigold-like rGO-VSe2 nanohybrids using a simple hydrothermal approach, which exhibited good performance as cathodes for ZIBs with high reversible potential and cycling stability. This innovative design addresses the efficiency and cycling stability issues of traditional ZIBs by improving conductivity and suppressing nanosheet electrostatic stacking.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

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Article Chemistry, Multidisciplinary

Sandwich-Like Heterostructures of MoS2/Graphene with Enlarged Interlayer Spacing and Enhanced Hydrophilicity as High-Performance Cathodes for Aqueous Zinc-Ion Batteries

Shengwei Li et al.

Summary: The research successfully increased the MoS2 interlayer spacing and enhanced hydrophilicity by innovatively intercalating graphene into MoS2 layers, forming MoS2/graphene nanocomposites with flower-like structures. These composites showed exceptional high-rate capability and long-term cycling stability, paving a new direction for high-performance cathodes in aqueous zinc-ion batteries.

ADVANCED MATERIALS (2021)

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Article Nanoscience & Nanotechnology

Selenium Defect Boosted Electrochemical Performance of Binder-Free VSe2 Nanosheets for Aqueous Zinc-Ion Batteries

Youcun Bai et al.

Summary: In this study, VSe2 nanosheets supported on stainless-steel with defects were synthesized through a hydrothermal reduction strategy, resulting in improved conductivity and activity. The Se defect was found to adjust the adsorption energy of Zn2+ ions, leading to enhanced reversibility and electrochemical performance of the Zn// VSe2-x-SS battery. The VSe2-x-SS electrode exhibited good specific capacity, rate performance, and cyclic stability, providing insights into the energy-storage mechanism of Zn2+ ions in this material for future electrode design.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Chemistry, Physical

Nano high-entropy alloy with strong affinity driving fast polysulfide conversion towards stable lithium sulfur batteries

Hongfei Xu et al.

Summary: Experimental results show that nano-HEA plays a critical role in the multi-electron and multiphase conversions of lithium polysulfides in lithium-sulfur batteries, significantly enhancing the activity of LiPSs, reducing concentration polarization, and suppressing activation polarization, contributing to higher reaction rates.

ENERGY STORAGE MATERIALS (2021)

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Article Chemistry, Physical

Metallic V5S8 microparticles with tunnel-like structure for high-rate and stable zinc-ion energy storage

Zhiguo Ren et al.

Summary: Rechargeable aqueous zinc-ion batteries (AZIBs) have strong competitiveness in terms of cost and safety, but the lack of stable cathode materials has hindered their development. This study reveals that V5S8 can serve as a superior intercalated cathode material for AZIBs, delivering high capacity and record capacity retention, driven by its metallic characteristic and optimal zinc-ion diffusion path. In-situ synchrotron X-ray diffraction, ex-situ X-ray photoelectron spectroscopy, and DFT calculations provide significant insights into the reaction mechanism of V5S8 cathode, highlighting its self-adaptive multistage ion storage properties.

ENERGY STORAGE MATERIALS (2021)

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Article Chemistry, Physical

Spinel Zn3V3O8: A high-capacity zinc supplied cathode for aqueous Zn-ion batteries

Jian Wu et al.

Summary: This study introduces spinel Zn3V3O8 as a high-capacity zinc supplied cathode in vanadium family for AZIBs, achieving a discharge capacity of 285 mA.h g(-1) and excellent capacity retention. Additionally, a novel Zn-metal free AZIBs using Zn3V3O8 parallel to carbon paper battery has been designed, aiming to promote the practical application of rechargeable AZIBs.

ENERGY STORAGE MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Proton-Dominated Reversible Aqueous Zinc Batteries with an Ultraflat Long Discharge Plateau

Yuanhe Sun et al.

Summary: The study shows that using ultrathin Bi2O2Se nanosheets as the cathode for AZBs can effectively activate stable proton storage, improving cycling life and discharge characteristics. The cathode demonstrates reliable energy supply capability at high rates and in low-temperature environments.

ACS NANO (2021)

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Article Chemistry, Multidisciplinary

In Situ Carbon Insertion in Laminated Molybdenum Dioxide by Interlayer Engineering Toward Ultrastable Rocking-Chair Zinc-Ion Batteries

Bo Wang et al.

Summary: By incorporating carbon layers into MoO2 materials, the structural integrity and electrochemical performance of aqueous zinc-ion batteries have been enhanced, resulting in excellent cycling stability and rate capability.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Article Engineering, Environmental

Phosphorus-doped carbon sheets decorated with SeS2 as a cathode for aqueous Zn-SeS2 battery

Wei Li et al.

Summary: In this study, phosphorus-doped carbon sheets encapsulated SeS2 was proposed as a conversional cathode for aqueous Zn-based batteries, achieving high energy density and long cycle life. The reaction mechanisms were explored, and experimental and theoretical calculations suggested that I2 additive acted as a redox mediator to enhance battery performance.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Chemistry, Multidisciplinary

Immunizing Aqueous Zn Batteries against Dendrite Formation and Side Reactions at Various Temperatures via Electrolyte Additives

Doudou Feng et al.

Summary: DMSO is demonstrated as an effective additive in ZnSO4 electrolyte for suppressing dendrites growth and improving the performance, stability, and cycling life of aqueous batteries at low temperatures. This work provides a facile and feasible strategy for designing high-performance and dendrite-free aqueous Zn-ion batteries for various temperatures.

SMALL (2021)

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Article Chemistry, Physical

Fe-doping enabled a stable vanadium oxide cathode with rapid Zn diffusion channel for aqueous zinc-ion batteries

Fangfang Wu et al.

Summary: A stable layer-structured vanadium oxide nanobelt (FeVO) with an expanded interlayer spacing up to 10.8 angstrom, achieved through Fe doping, shows outstanding cyclic stability of 300 cycles at a low current density of 0.5 A g(-1) with a high retention rate of 94.6%. The boosted electrochemical performance is attributed to the large interlayer space providing ion diffusion path and a stable layered structure. These characteristics indicate great potential for high-performance aqueous zinc ion batteries.

MATERIALS TODAY ENERGY (2021)

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Article Chemistry, Multidisciplinary

Principles of interlayer-spacing regulation of layered vanadium phosphates for superior zinc-ion batteries

Linfeng Hu et al.

Summary: The study addresses the challenges of sluggish Zn2+ diffusion kinetics and poor cyclic stability in cathode materials for aqueous ZIBs by synthesizing PA-intercalated VOPO4·2H2O materials with different interlayer spacing. The optimized 16.5 angstrom spacing shows enhanced zinc-ion diffusion and cycling stability, leading to improved battery performance.

ENERGY & ENVIRONMENTAL SCIENCE (2021)

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Article Chemistry, Physical

A unique morphology and interface dual-engineering strategy enables the holey C@VO2 cathode with enhanced storage kinetics for aqueous Zn-ion batteries

Ming Yang et al.

Summary: This study presents a rational design of holey carbon-encapsulated vanadium dioxide nanobelts as cathode material for high-performance aqueous Zn-ion batteries (AZIBs) via a unique dual-engineering strategy. The electrode shows excellent capacity and high-rate performance, with stable electron transport process confirmed by in situ electrochemical impedance spectra. The systematic studies of the reaction mechanism provide scientific guidance for designing other advanced cathodes and contribute to a deep understanding of the fundamentals of AZIBs.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

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Article Chemistry, Applied