摘要
锰溶解是造成锰基正极材料性能恶化的重要因素之一,它不仅直接引起电极活性材料的损失,还会随着锰的迁移而在负极表面进行沉积,进而引发一系列的副反应,造成电池容量的不可逆损失。总结了锰系锂离子电池正极材料的锰溶解及沉积机理,分析了其对电池性能的影响,提出了抑制锰溶解及沉积的方法,并对锰基正极材料的发展进行了展望。
Manganese dissolution is one of the important factors that result in the deterioration of the performance of manganese based cathode materials.It directly causes the loss of electrode active materials and induces manganese depositing on the negative electrode surface along with the migration of manganese,leading to a series of side reactions and irreversible loss of capacity.The mechanisms of manganese dissolution and deposition were summarized and the effect of manganese dissolution and deposition on lithium batteries was analyzed.The methods to inhibit manganese dissolution and deposition were proposed,and the development of manganese-based cathode materials was prospected as well.
作者
李文博
李世友
耿彤彤
彭峰峰
梁有维
LI Wenbo;LI Shiyou;GENG Tongtong;PENG Fengfeng;LIANG Youwei(College of Petrochemical Technology,Lanzhou University of Technology,Lanzhou 730050,China;Gansu Engineering Laboratory of Electrolyte Material for Lithium-ion Battery,Lanzhou 730050,China)
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2020年第1期73-78,共6页
Journal of The Chinese Ceramic Society
基金
国家自然科学基金(51502124,21766017)
白银市科技计划项目(2017-2-11G)。
关键词
锂离子电池
锰基正极材料
锰溶解
锰沉积
机理
lithium ion battery
manganese-based cathode materials
manganese dissolution
manganese deposition
mechanism
