电源技术2009，Vol.33Issue(4)：276-279,4.
锂离子动力电池脉冲功率特性的研究
Study on pulse power characteristics of lithium ion power battery
刘莎 1卢世刚 1庞静1
作者信息
- 1. 北京有色金属研究总院,能源所,北京,100088
- 折叠
摘要
Abstract
The charge and discharge pulse power capability of 17 Ah high power lithium ion battery for hybrid electric vehicle was studied at room temperature. Firstly, pulse power properly of the battery at 50%SOC was tested under current control and power control mode, respectively; secondly, the cycle dependence of the capacity and power fade was studied under current control mode. The results show thai the battery displays a power range of -500-38 W under current control mode, and a current range of -51.7-39.4 A under power control mode; the energy efficiency of the battery is 96.2% and the capacity efficiency is 93.7%, respectively. The battery shows a capacity fade of 7.9% and a power fade of 13.1% after 17 000 cycles (2 833 h) under current control mode. Capacity fade and power fade in the battery are fast at the beginning of cycling, but the fading rates decrease with cycle number. Most of the power fade occurs in the first 1 000 cycles.关键词
锂离子动力电池/脉冲功率特性/循环/衰减Key words
high power lithium ion battery/ pulse power capability/ cycle/ fade分类
信息技术与安全科学引用本文复制引用
刘莎,卢世刚,庞静..锂离子动力电池脉冲功率特性的研究[J].电源技术,2009,33(4):276-279,4.
