摘要
锂离子电池在长期工作中极易发生容量衰减,不同的工作条件下衰减程度不同,相关机理也不同。通过研究不同条件下锂离子电池的循环失效并探究机理,可以为优化电池设计提供参考,提高锂离子电池使用的安全耐久性。综述了在不同温度、压力、充放电倍率、过充电/过放电、荷电状态(SOC)循环区间下锂离子电池的循环容量衰减情况及失效机理,并提出相关策略提高锂离子电池的使用性能,确保锂离子电池安全稳定地运行。
Lithium ion batteries are prone to capacity degradation during long-term operation,with varying degrees of degradation and different underlying mechanisms under different operating conditions.Through the study of cycle failure of lithium ion batteries under different conditions,the mechanisms are investigated in order to provide insights for optimizing battery design to enhance the safety and durability of lithium ion battery use.This article summarizes the situation of cycle capacity degradation and failure mechanisms under different temperatures,pressures,charge-discharge rates,overcharging and overdischarging,as well as State of Charge(SOC)cycling ranges.Relevant strategies are proposed to improve the performance of lithium ion batteries and ensure their safe and stable operation.
作者
陈秉琳
赵景全
CHEN Binglin;ZHAO Jingquan(Tianjin Institute of Power Sources,Tianjin 300384,China;Yantai Graduate School,Harbin Engineering University,Yantai Shandong 265503,China)
出处
《电源技术》
北大核心
2025年第1期57-66,共10页
Chinese Journal of Power Sources
关键词
锂离子电池
循环寿命
失效机理
lithium ion battery
cycle life
failure mechanism
