4.8 Article

Elastic Lattice Enabling Reversible Tetrahedral Li Storage Sites in a High-Capacity Manganese Oxide Cathode

Related references

Note: Only part of the references are listed.
Article Chemistry, Multidisciplinary

Delocalized Li@Mn6 superstructure units enable layer stability of high-performance Mn-rich cathode materials

Weiyuan Huang et al.

Summary: The search for high-performance cathode materials is an important challenge for lithium-ion batteries. In this study, a strategy of delocalizing superstructure units within transition-metal layers was demonstrated to enhance the layer stability of a Li-excess Mn-rich layered oxide cathode. This resulted in a high capacity and energy density after cycling.
Article Chemistry, Multidisciplinary

Stabilizing Anionic Redox Chemistry in a Mn-Based Layered Oxide Cathode Constructed by Li-Deficient Pristine State

Xin Cao et al.

Summary: A novel Li-rich cathode material, O3-type Li-0.6[Li0.2Mn0.8]O-2, is developed, exhibiting high reversible capacity and long-term cycle stability through tuning the Li state in the alkali metal layer. Stable structure evolution and Li migration processes effectively restrain irreversible lattice oxygen loss and structure distortion.

ADVANCED MATERIALS (2021)

Article Nanoscience & Nanotechnology

Structural origin of the high-voltage instability of lithium cobalt oxide

Jianyuan Li et al.

Summary: Layered lithium cobalt oxide is a successful commercial cathode material in lithium-ion batteries, but its structural instability at high potentials poses challenges. By using advanced electron diffraction methods and high-resolution transmission electron microscopy, researchers have identified that the curvature of cobalt oxide layers near the surface plays a crucial role in determining the structural stability and electrochemical performance of the material. This atomistic understanding of structure-performance relationships provides valuable insights for designing new cathode materials with superior stability at high voltages.

NATURE NANOTECHNOLOGY (2021)

Article Chemistry, Physical

Revealing Roles of Co and Ni in Mn-Rich Layered Cathodes

Weiyuan Huang et al.

Summary: This study investigates the effects of Co and Ni substitution on Mn-rich layered cathodes for lithium-ion batteries. Results show that Co4+ is detrimental to structural stability, while Ni substitution of Co enhances lattice oxygen stability and improves cycling stability. These findings contribute to the development of Co-free Mn-rich layered cathode materials for future rechargeable lithium-ion batteries.

ADVANCED ENERGY MATERIALS (2021)

Article Chemistry, Physical

Cycling mechanism of Li2MnO3: Li-CO2 batteries and commonality on oxygen redox in cathode materials

Zengqing Zhuo et al.

Summary: By evaluating the Mn and O states in Li2MnO3, it is found that Mn(III/IV) redox dominates the reversible bulk redox, while surface reactions contribute to the initial charge plateau with oxygen release and carbonate decomposition. The absence of lattice oxygen redox in Li2MnO3 questions the origin of oxygen redox in Li-rich compounds, suggesting opportunities for using alkali-rich materials for catalytic reactions.

JOULE (2021)

Article Chemistry, Multidisciplinary

Weakly Solvating Solution Enables Chemical Prelithiation of Graphite-SiOx Anodes for High-Energy Li-Ion Batteries

Jinkwan Choi et al.

Summary: The initial Coulombic efficiency of the anode is crucial for the energy density of a Li-ion battery, and a blend of graphite and Si/SiOx is the most practical way to balance capacity and cycle life, but its low ICE limits its commercial viability. A chemical prelithiation method can maximize the ICE of the blend anodes, leading to a near-ideal energy density in a full cell.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

Article Chemistry, Physical

Distinct Oxygen Redox Activities in Li2MO3 (M = Mn, Ru, Ir)

Zengqing Zhuo et al.

Summary: This study re-evaluated the redox reactions in Li2RuO3 and found both Ru and O redox to be highly reversible, contrasting with other Li2MO3 systems. The critical role of transition metals and their coupling to oxygen in maintaining reversible oxygen redox activities for high-energy batteries was highlighted through this research.

ACS ENERGY LETTERS (2021)

Article Chemistry, Multidisciplinary

Understanding Rechargeable Battery Function Using In Operando Neutron Powder Diffraction

Gemeng Liang et al.

ADVANCED MATERIALS (2020)

Article Chemistry, Multidisciplinary

Design Principles for High-Capacity Mn-Based Cation-Disordered Rocksalt Cathodes

Zhengyan Lun et al.

Article Multidisciplinary Sciences

Superstructure control of first-cycle voltage hysteresis in oxygen-redox cathodes

Robert A. House et al.

NATURE (2020)

Article Chemistry, Multidisciplinary

O2-Type Li0.78[Li0.24Mn0.76]O2 Nanowires for High-Performance Lithium-Ion Battery Cathode

Huaifang Shang et al.

NANO LETTERS (2020)

Review Chemistry, Multidisciplinary

Harnessing the surface structure to enable high-performance cathode materials for lithium-ion batteries

Luyi Yang et al.

CHEMICAL SOCIETY REVIEWS (2020)

Article Chemistry, Physical

Surface Ni-rich engineering towards highly stable Li1.2Mn0.54Ni0.13Co0.13O2 cathode materials

Hongfei Zheng et al.

ENERGY STORAGE MATERIALS (2020)

Article Nanoscience & Nanotechnology

Injection of oxygen vacancies in the bulk lattice of layered cathodes

Pengfei Yan et al.

NATURE NANOTECHNOLOGY (2019)

Review Chemistry, Multidisciplinary

Ni/Li Disordering in Layered Transition Metal Oxide: Electrochemical Impact, Origin, and Control

Jiaxin Zheng et al.

ACCOUNTS OF CHEMICAL RESEARCH (2019)

Article Electrochemistry

High-Performance Li-Rich Layered Transition Metal Oxide Cathode Materials for Li-Ion Batteries

Katarzyna Redel et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2019)

Article Chemistry, Multidisciplinary

A High-Capacity O2-Type Li-Rich Cathode Material with a Single-Layer Li2MnO3 Superstructure

Yuxuan Zuo et al.

ADVANCED MATERIALS (2018)

Article Chemistry, Physical

Switch of the Charge Storage Mechanism of LixNi0.80Co0.15Al0.05O2 at Overdischarge Conditions

Rosa Robert et al.

CHEMISTRY OF MATERIALS (2018)

Article Chemistry, Multidisciplinary

Lithium manganese oxyfluoride as a new cathode material exhibiting oxygen redox

Robert A. House et al.

ENERGY & ENVIRONMENTAL SCIENCE (2018)

Article Multidisciplinary Sciences

Reversible Mn2+/Mn4+ double redox in lithium-excess cathode materials

Jinhyuk Lee et al.

NATURE (2018)

Article Chemistry, Physical

Metastable and nanosize cation- disordered rocksalt- type oxides: revisit of stoichiometric LiMnO2 and NaMnO2+

Takahito Sato et al.

JOURNAL OF MATERIALS CHEMISTRY A (2018)

Article Chemistry, Physical

A new active Li-Mn-O compound for high energy density Li-ion batteries

M. Freire et al.

NATURE MATERIALS (2016)

Article Chemistry, Multidisciplinary

One-Pot Synthesis of Lithium-Rich Cathode Material with Hierarchical Morphology

Kun Luo et al.

NANO LETTERS (2016)

Article Chemistry, Physical

Understanding structural stability of monoclinic LiMnO2 and NaMnO2 upon de-intercalation

Meng Tian et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2016)

Article Chemistry, Physical

Structural and Chemical Evolution of Li- and Mn-Rich Layered Cathode Material

Jianming Zheng et al.

CHEMISTRY OF MATERIALS (2015)

Article Multidisciplinary Sciences

Quantification of thickness and wrinkling of exfoliated two-dimensional zeolite nanosheets

Prashant Kumar et al.

NATURE COMMUNICATIONS (2015)

Article Chemistry, Physical

Intrinsic ripples in graphene

A. Fasolino et al.

NATURE MATERIALS (2007)

Article Chemistry, Physical

A first-principles approach to studying the thermal stability of oxide cathode materials

L. Wang et al.

CHEMISTRY OF MATERIALS (2007)

Review Chemistry, Multidisciplinary

NMR studies of cathode materials for lithium-ion rechargeable batteries

CP Grey et al.

CHEMICAL REVIEWS (2004)