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Reaction Mechanisms of Layered Lithium‐Rich Cathode Materials for High‐Energy Lithium‐Ion Batteries
Author(s) -
Zhao Shuoqing,
Yan Kang,
Zhang Jinqiang,
Sun Bing,
Wang Guoxiu
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202000262
Subject(s) - lithium (medication) , cathode , redox , materials science , ion , lithium vanadium phosphate battery , manganese , nanotechnology , electrochemistry , chemical engineering , chemistry , inorganic chemistry , electrode , organic chemistry , metallurgy , medicine , endocrinology , engineering
Layered lithium‐rich cathode materials have attracted extensive interest owing to their high theoretical specific capacity (320–350 mA h g −1 ). However, poor cycling stability and sluggish reaction kinetics inhibit their practical applications. After many years of quiescence, interest in layered lithium‐rich cathode materials is expected to revive in answer to our increasing dependence on high‐energy‐density lithium‐ion batteries. Herein, we review recent research progress and in‐depth descriptions of the structure characterization and reaction mechanisms of layered lithium‐rich manganese‐based cathode materials. In particular, we comprehensively summarize the proposed reaction mechanisms of both the cationic redox reaction of transition‐metal ions and the anionic redox reaction of oxygen species. Finally, we discuss opportunities and challenges facing the future development of lithium‐rich cathode materials for next‐generation lithium‐ion batteries.