期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 60, 期 5, 页码 2208-2220出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202000262
关键词
cathode materials; electrochemistry; lithium-ion batteries; lithium-rich transition metal oxides; reaction mechanisms
资金
- Australian Research Council (ARC) [DE180100036, DP170100436, DP180102297, DP200101249]
- Australian Research Council [DE180100036, DP200101249] Funding Source: Australian Research Council
Layered lithium-rich cathode materials with high theoretical specific capacity have regained interest due to the increasing reliance on high-energy-density lithium-ion batteries. Research progress on the structure characterization and reaction mechanisms of these materials has been reviewed, focusing on both cationic and anionic redox reactions. The future development of lithium-rich cathode materials for next-generation lithium-ion batteries faces opportunities and challenges.
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.
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