| 王甲琴,李兰兰,吴晖君,栾紫林,翟一豪,李世友,蔡星鹏.化学通报,2026,89(5):526-532. |
| 富锂锰基正极材料氧空位的形成机理与演化研究进展 |
| Research progress on the formation mechanism and evolution of oxygen vacancies in lithium-rich manganese-based cathode materials |
| 投稿时间：2025-11-24 修订日期：2026-02-21 |
| DOI： |
| 中文关键词: 锂离子电池 正极材料 富锂锰基 氧空位 |
| 英文关键词:lithium ion battery cathode materials oxygen vacancies lithium-rich manganese-based |
| 基金项目:国家自然科学基金项目(22269012)和榆中县科技发展计划项目(2025-Q1-10)资助 |
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| 中文摘要: |
| 富锂锰基正极材料(LMCM)凭借其高比容量和低成本的优势，已成为下一代高能量密度二次电池的关键候选材料。然而，由阴离子氧化还原介导的氧空位(OVs)是诱导LMCM结构退化以及电化性能衰减的关键因素之一。本综述从LMCM的结构特征和电化学行为出发，系统梳理了近些年国内外关于OVs缺陷的形成机理，重点阐述了OVs的生长和演变过程。最后我们对OVs缺陷在LMCM中所面临的挑战和机遇提出了一些自己的思考。通过本文的全面描述，希望能为高性能LMCM的设计提供理论指导和帮助。 |
| 英文摘要: |
| Lithium-rich manganese-based cathode materials (LMCM) have emerged as key candidates for next-generation high-energy-density secondary batteries due to their high specific capacity and low cost. However, oxygen vacancies (OVs) mediated by anionic redox reactions represent one of the critical factors inducing structural degradation and electrochemical performance decay in LMCM. This review begins with the structural characteristics and electrochemical behavior of LMCM, systematically summarizes recent domestic and international research on the formation mechanisms of OVs defects, with a particular focus on elucidating the growth and evolution processes of OVs. Finally, we provide perspectives on the challenges and opportunities associated with OVs defects in LMCM. Through this comprehensive discussion, we aim to offer theoretical guidance and support for the design of high-performance LMCM. |
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