富锂锰基正极材料研究进展  

Research Progress of Li-rich Mn-based Cathode Materials

作　　者：童汇 谢建龙 张志谋 郭忻 喻万景 郭学益 黄承焕 TONG Hui;XIE Jianlong;ZHANG Zhimou;GUO Xin;YU Wanjing;GUO Xueyi;HUANG Chenghuan(School of Metallurgy and Environment,Central South University,Changsha 410083,China;National&Regional Joint Engineering Research Center of Nonferrous Metal Resource Recycling,Changsha 410083,China;Hunan Changyuan Lico New Energy Co.,Ltd.,Changsha 410205,China)

机构地区：[1]中南大学冶金与环境学院,长沙410083 [2]有色金属资源循环利用国家地方联合工程研究中心,长沙410083 [3]湖南长远锂科新能源有限公司,长沙410205

出　　处：《材料导报》2025年第3期1-18,共18页Materials Reports

基　　金：国家自然科学基金(52227806);长沙市重大科技攻关项目(kh2301024);中南大学前沿交叉项目(2023QYJC027)。

摘　　要：富锂锰基材料(LRMOs)因具有能量密度高、成本低和环境友好等优点而备受青睐。然而,LRMOs存在首次库仑效率低、循环性能和倍率性能差等固有缺陷,限制了其商业化应用。为了应对这些局限,研究者们对LRMOs的制备方法不断进行改进,并且提出了多种改性措施,使得LRMOs的性能显著提高。本文介绍了LRMOs的组成与结构、充放电机理,总结了LRMOs的最新研究进展,包括制备方法、面临的挑战和常见改性策略,并指明了未来LRMOs的研究重点,为今后LRMOs的研究及开发提供了重要参考。Li-rich Mn-based materials(LRMOs)are highly favored due to their high energy density,cost-effectiveness,and eco-friendliness.However,LRMOs have inherent defects such as low initial Coulombic efficiency,poor cycling and rate performance,which limit their commercial application.In order to address these limitations,researchers have been working on enhancing the preparation techniques of LRMOs and proposing various modification strategies,which have significantly improved the performance of LRMOs.This summary introduces the composition,structure,charging and discharging mechanisms of LRMOs.It summarizes the latest research progress of LRMOs,including preparation methods,challenges faced,and common modification strategies.Moreover,it highlights the future research focus of LRMOs.This work provides valuable references for the research and development of LRMOs in the future.

关 键 词：富锂锰基材料 锂离子电池 改性 电化学性能 

分 类 号：TM912[电气工程—电力电子与电力传动]