摘要
容量衰减与电池循环寿命直接相关。导致锂离子电池容量衰减的原因主要包括:固体电解质界面膜(SEI)的增长、电解液的分解、电极材料结构破坏、活性物质的溶解和相转变等。过充过放电、不良的储存或使用温度等外部因素也会导致电池容量衰减。本文综述了近年来锂离子电池容量衰减机理的研究进展。
Capacity fading is directly related to the cycle life of lithium-ion batteries. The reasons of capacity fading include growth of the solid electrolyte interface （SEI） film, degradation and dissolution and phase transition of active materials, overcharging-discharging, decomposition of the electrolyte, abnormal temperature, corrosion of current collector and so on. This article reviews the research progresses on capacity fading mechanisms of lithium-ion batteries in recent years.
出处
《新能源进展》
2016年第5期364-372,共9页
Advances in New and Renewable Energy
基金
广东省科技重大专项(2014B010128001)
广州市科技计划项目(201509030005)
中科院青年创新促进会项目(2013230)
关键词
锂离子电池
容量衰减
机理
lithium-ion battery
capacity fading
mechanism
