☆ 4.7 Article

Vacancy-enhanced oxygen redox and structural stability of spinel Li2Mn3O7-x

CHEMICAL COMMUNICATIONS (2022)

相关参考文献

注意：仅列出部分参考文献，下载原文获取全部文献信息。

Article Chemistry, Multidisciplinary

Reversible Cation-Mediated Anionic Redox in Defect Spinel Structure for High Power Batteries

Monika Bakierska et al.

Summary: This paper presents a new type of spinel structure electrode material with high capacity and stability, utilizing fast cation-mediated anionic redox reaction. The material can maintain a high capacity even under high current rates, showing good reversibility in mixed cation-anion redox cathode materials for Li-ion systems.

ADVANCED FUNCTIONAL MATERIALS (2022)

添加到收藏夹

Review Chemistry, Multidisciplinary

Unraveling Anionic Redox for Sodium Layered Oxide Cathodes: Breakthroughs and Perspectives

Haixia Ren et al.

Summary: This review systematically summarizes the development history and mechanism of anionic redox reaction in layered transition metal oxides. Challenges and strategies for triggering and stabilizing anionic redox are discussed, and different types of sodium layered oxide cathodes are classified and compared. The review also provides an overview of characterization techniques for anionic oxygen redox. Finally, the prospective and future development directions of sodium layered transition oxide with anionic redox reaction are analyzed and suggested.

ADVANCED MATERIALS (2022)

添加到收藏夹

Article Chemistry, Physical

Enabling Stable and Nonhysteretic Oxygen Redox Capacity in Li-Excess Na Layered Oxides

Geon-Hee Yoon et al.

Summary: By incorporating Al3+ into sodium layered oxide, stable and nonhysteretic oxygen capacities can be achieved, leading to an increase in energy density of sodium-ion battery cathodes.

ADVANCED ENERGY MATERIALS (2022)

添加到收藏夹

Article Chemistry, Physical

Effect of vacancy-tailored Mn3+ spinning on enhancing structural stability

Lu Yang et al.

Summary: This study introduced vacancy-containing and vacancy-free cathode materials to investigate how transition metal vacancies affect the spinning states of Mn3+ ions, leading to improved structural stability and performance. Density functional theory calculations and advanced physical characterizations provided insights into the mechanisms underlying the enhanced properties of the materials.

ENERGY STORAGE MATERIALS (2022)

添加到收藏夹

Article Chemistry, Physical

Hysteresis-Suppressed Reversible Oxygen-Redox Cathodes for Sodium-Ion Batteries

Natalia Voronina et al.

Summary: Oxygen-redox-based cathode materials have potential as high-capacity and stable electrodes for sodium-ion batteries. By doping with Ni, the layered oxide cathode material Na-0.75[Li0.15Ni0.15Mn0.7]O-2 exhibits improved capacity and cycling stability.

ADVANCED ENERGY MATERIALS (2022)

添加到收藏夹

Article Chemistry, Physical

Reversible anionic redox chemistry in layered Li4/7[□1/7Mn6/7]O2 enabled by stable Li-O-vacancy configuration

Xin Cao et al.

Summary: The combination of anionic and cationic activities in Li-rich materials has achieved high-energy-density batteries by breaking through the traditional capacity limitation. However, the utilization of anionic oxygen redox reactions often leads to detrimental lattice oxygen release, which accelerates structural distortion and electrochemical performance deterioration. This study found that the introduction of Mn vacancy enables reversible oxygen redox behaviors within layered Li-4/7[square Mn-1/7(6/7)]O-2 with Li-O-vacancy configuration, effectively suppressing lattice oxygen loss and improving the output capacity and long-term cycling stability of batteries.

JOULE (2022)

添加到收藏夹

Article Chemistry, Physical

Stable electronic structure related with Mn4+-O-? coupling determines the anomalous nonhysteretic behavior in Na2Mn3O7

Chong Zhao et al.

Summary: Oxygen redox has both benefits and drawbacks for battery cathodes. This study focuses on Na2Mn3O7, which exhibits an abnormal small voltage hysteresis during oxygen redox. The stable electronic structure and dispersive oxygen redox in Na2Mn3O7 are proposed as the reasons for this abnormal behavior.

ENERGY STORAGE MATERIALS (2022)

添加到收藏夹

Article Nanoscience & Nanotechnology

Understanding the Effect of Al Doping on the Electrochemical Performance Improvement of the LiMn2O4 Cathode Material

Wangqiong Xu et al.

Summary: Al doping improves the electrochemical performance of spinel LiMn2O4 by forming a more stable structure framework, inhibiting the dissolution of Mn ions, and enhancing cycling stability and rate performance.

ACS APPLIED MATERIALS & INTERFACES (2021)

添加到收藏夹

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)

添加到收藏夹

Article Energy & Fuels

Ultrahigh power and energy density in partially ordered lithium-ion cathode materials

Huiwen Ji et al.

NATURE ENERGY (2020)

添加到收藏夹

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)

添加到收藏夹

Article Chemistry, Physical

Understanding the Low-Voltage Hysteresis of Anionic Redox in Na2Mn3O7

Bohang Song et al.

CHEMISTRY OF MATERIALS (2019)

添加到收藏夹

Article Chemistry, Physical

Native Vacancy Enhanced Oxygen Redox Reversibility and Structural Robustness

Yejing Li et al.

ADVANCED ENERGY MATERIALS (2019)

添加到收藏夹

Article Chemistry, Multidisciplinary

A New Type of Li-Rich Rock-Salt Oxide Li2Ni1/3Ru2/3O3 with Reversible Anionic Redox Chemistry

Xiang Li et al.

ADVANCED MATERIALS (2019)

添加到收藏夹

Article Materials Science, Multidisciplinary

Spin-orbit coupling and crystal-field distortions for a low-spin 3d5 state in BaCoO3

Y. Y. Chin et al.

PHYSICAL REVIEW B (2019)

添加到收藏夹

Article Chemistry, Multidisciplinary

Low-temperature synthesized Li4Mn5O12-like cathode with hybrid cation- and anion-redox capacities

Yang Liu et al.

CHEMICAL COMMUNICATIONS (2019)

添加到收藏夹

Article Chemistry, Physical

Highly Reversible Oxygen-Redox Chemistry at 4.1 V in Na4/7-x[square 1/7Mn6/7]O2 (square: Mn Vacancy)

Benoit Mortemard de Boisse et al.

ADVANCED ENERGY MATERIALS (2018)

添加到收藏夹

Review Chemistry, Physical

Li- and Mn-Rich Cathode Materials: Challenges to Commercialization

Jianming Zheng et al.

ADVANCED ENERGY MATERIALS (2017)

添加到收藏夹

Review Chemistry, Multidisciplinary

Synchrotron X-ray Analytical Techniques for Studying Materials Electrochemistry in Rechargeable Batteries

Feng Lin et al.

CHEMICAL REVIEWS (2017)

添加到收藏夹

Article Chemistry, Multidisciplinary

The structural and chemical origin of the oxygen redox activity in layered and cation-disordered Li-excess cathode materials

Dong-Hwa Seo et al.

NATURE CHEMISTRY (2016)

添加到收藏夹

Article Chemistry, Multidisciplinary

A perspective on the high-voltage LiMn1.5Ni0.5O4 spinel cathode for lithium-ion batteries

Arumugam Manthiram et al.

ENERGY & ENVIRONMENTAL SCIENCE (2014)

添加到收藏夹

Article Chemistry, Physical

Understanding the Rate Capability of High-Energy-Density Li-Rich Layered Li 1.2 Ni 0.15 Co 0.1 Mn 0.55 O 2 Cathode Materials

Xiqian Yu et al.

ADVANCED ENERGY MATERIALS (2014)

添加到收藏夹

Article Materials Science, Multidisciplinary

Local electronic structure and magnetic properties of LaMn0.5Co0.5O3 studied by x-ray absorption and magnetic circular dichroism spectroscopy

T. Burnus et al.

PHYSICAL REVIEW B (2008)

添加到收藏夹

Article Instruments & Instrumentation

ATHENA, ARTEMIS, HEPHAESTUS:: data analysis for X-ray absorption spectroscopy using IFEFFIT

B Ravel et al.

JOURNAL OF SYNCHROTRON RADIATION (2005)

添加到收藏夹

Article Chemistry, Physical

XPS and Raman spectroscopic characterization of LiMn2O4 spinels

CV Ramana et al.

SURFACE AND INTERFACE ANALYSIS (2005)

添加到收藏夹

Article Electrochemistry

Origin of the high voltage (> 4.5 V) capacity of spinel lithium manganese oxides

Y Shin et al.

ELECTROCHIMICA ACTA (2003)

添加到收藏夹

© Peeref 2019-2024. All rights reserved.