摘要
容量衰减是锂离子电池在使用过程中存在的一个重要问题。导致锂离子电池容量衰减的原因主要包括:电池过充电、固体电解质界面膜(SEI)的增长、电解液的分解、活性物质的溶解和相转变等。综述了近年来锂离子电池容量衰减的研究进展,并对锂离子电池的容量衰减机理进行了分析。
Capacity fading was the main problem of Lithium-ion batteries during the charge-discharge progress. Overcharging, growth of the SEI film, decomposition of the electrolyte, dissolution and phase transition of active materials, and so on were the reasons of capacity fading.Progress of study on capacity fading of Li-ion batteries was summarized. Fading mechanisms were discussed in detail.
出处
《电源技术》
CAS
CSCD
北大核心
2014年第3期553-556,共4页
Chinese Journal of Power Sources
基金
化学与物理电源重点实验室项目(9140C16020212-DZ2801)
关键词
锂离子电池
容量衰退
电解液
机理
进展
Li-ion battery
capacity fading
electrolyte
mechanism
progress
