锂离子电池贮存特性研究  

Study of storage characteristics of Li-ion battery

作　　者：刘芬 李琴 陈泽琦 周福辉 LIU Fen;LI Qin;CHEN Zeqi;ZHOU Fuhui(Wuhan Zhongyuan Changjiang Technology Development Co.,Ltd.,Wuhan Hubei 430090,China)

机构地区：[1]武汉中原长江科技发展有限公司,湖北武汉430090

出　　处：《电源技术》2022年第10期1172-1174,共3页Chinese Journal of Power Sources

摘　　要：考察不同开路电压的锂离子电池在65℃高温条件贮存不同周期后的性能变化情况。结果表明,充电至截止电压4.0 V组电池65℃贮存64 d后,性能稳定,常温容量保持率达88.37%。据此推算锂电池常温开路贮存,平均年自放电率1.43%。The performance changes of lithium ion batteries under different charge states were investigated after storage at 65℃for different days.The results show that the 4.0 V battery has the most stable performance after storage at 65℃.After storage for 64 d,the capacity retention rate of normal temperature reaches 88.37%.According to the data,the average annual self-discharge rate is 1.43%when stored under open circuit voltage at room temperature.

关 键 词：锂离子电池 高温贮存 贮存寿命 

分 类 号：TM912[电气工程—电力电子与电力传动]