摘要
通过对采用不同正极材料、功能电解液制成的动力型18650锂离子样品电池进行过充电性能实验,发现不同条件制作的电池过充时具有不同的温度、电压变化特性曲线,研究分析了影响动力型18650锂离子电池的过充性能的各种因素,发现几种条件下制作的动力电池可以在过充时不发生起火、爆炸,但过充电压升到一定值后电池已不能再正常使用。要确保动力电池的安全可靠使用,还需要在盖帽及电池外部加强安全保护措施。
High power 18650 Li-ion battery samples with different positive electrode materials and functional electrolytes were researched by over-charge test, it was found that samples prepared under different conditions had different temperatures and voltage characteristic curves. The factors that affected the over-charge characteristics of high power 18650 Li-ion battery were analyzed and the results show that the power battery prepared under some conditions will not arise fire and explosion while over-charged, but the battery will not be used any more when the charge voltage increases to a certain value. So in order to assure the safe and reliable application of battery, it is necessary to strengthen safe protection outside the cap and battery.
出处
《电源技术》
CAS
CSCD
北大核心
2007年第11期885-887,892,共4页
Chinese Journal of Power Sources
作者简介
唐琛明（1960-），男，江苏省人，高级工程师，主要研究方向为电池及其材料。
