动力锂电池的寿命研究综述

Review of life research on electric vehicle Li-ion cell

对国内外动力锂电池的寿命研究进行了综述。从动力电池的寿命定义入手,分析了温度、充放电电流、充放电截止电压等因素对电池寿命的影响。介绍了动力电池的寿命测试方法,包括循环寿命测试和日历寿命测试、电动汽车寿命模型和电动汽车健康状态(state of health,SOH)的估计。提出了动力锂电池寿命研究有待解决的问题。

A review of life research on electric vehicle li-ion cell was presented.The research on definition of electric vehicle cell was reviewed,and then the affecting factors during ageing were discussed.These factors include temperature,charge and discharge current,charge and discharge voltage and so on.The procedures,life prediction models and SOH estimation algorithms were reviewed.Some practical problems of electric vehicle cell were presented.