电化学(中英文)2024,Vol.30Issue(6):1-23,23.DOI:10.61558/2993-074X.3445
高电压LiCoO2的表面结构与性能:回顾与展望
Surface Structures and Properties of High-voltage LiCoO2:Reviews and Prospects
摘要
Abstract
Nowadays,the development of high-voltage LiCoO2(lithium cobalt oxide,LCO)cathodes has attracted the widespread attention from both the academic and industry fields.Among the multiple concerns,researches on the surface issues would provide the most effective performance optimization pathway for the synthesis of high-voltage LCO.In this work,the issues of high-voltage LCO,including the phase transitions and crack formation,the oxygen redox related issues and side reactions,as well as the surface structure degradation,have been systematically reviewed.Then,we further clarify the surface modulations,and the interplay between the surface modulation and electrolyte tuning.Finally,we propose our prospects for developing the more advanced LCO cathodes,including the low-cost and high-quality manufacturing,designing suitable LCO cathodes in some extreme conditions(such as high-temperature,high-rate charging,low temperature,etc.),and achieving stabilized capacity release of about 220 mAh g-1 of LCO,etc.We hope that this work can serve as a reference to promote the development and appli-cation of high-voltage LCO in future.关键词
LiCoO2/界面结构/相转变/表面修饰/正极电解质界面Key words
Lithium cobalt oxide/Interface structures/Phase transition/Surface modulation/Cathode electrolyte interphase引用本文复制引用
方建军,杜宇豪,李子健,樊文光,任恒宇,易浩聪,赵庆贺,潘锋..高电压LiCoO2的表面结构与性能:回顾与展望[J].电化学(中英文),2024,30(6):1-23,23.基金项目
This work is financially supported by the Na-tional Natural Science Foundation of China(No.52102201,No.52102200),and the Basic and Applied Basic Research Foundation of Guangdong Prov-ince(No.2021B1515130002). (No.52102201,No.52102200)