电源技术2009，Vol.33Issue(4)：280-283,4.
高功率锂离子蓄电池制备与性能研究
Preparation and performance of high power lithium secondary battery
摘要
Abstract
The 8 Ah high power lithium secondary battery for hybrid electric vehicle (HEV) was prepared with LIMn2O4 as cathode material. The uniformity of capacity, weight and charge retention was good. The performance test results show that the continuous discharge power density of the cell is 1 517 W/kg at 25.0 C. At -30 ℃, the discharge capacity retains 90% of that at 25 ℃ at 1.0 C. After 700 cycles with 1.0 C, the capacity retention rate is 87%. The cell neither explodes nor catches fire when the cell is punctured, pressed and short-circuited. The safety characteristic of the cell is good. Charge-discharge efficiency is almost 100 % at room temperature, while only 97 % at elevated temperature. Both charge and discharge capacity fade at high temperature are faster than those at room temperature, and in the process of charging, the changes of charging capacity at high-temperature are much more complex than those at room temperature.关键词
锂离子蓄电池/高功率/混合动力汽车(HEV)/一致性Key words
lithium secondary battery/ high power/ hybrid electric vehicle (HEV)/ uniformity分类
信息技术与安全科学引用本文复制引用
李文成,卢世刚,庞静,刘莎,王昌胤,靳尉仁,阚素荣,吴国良..高功率锂离子蓄电池制备与性能研究[J].电源技术,2009,33(4):280-283,4.基金项目
国家"863"计划资助项目(2006 AA 11 A 148) （2006 AA 11 A 148）
