钴酸锂正极锂离子电池的过充电安全性_王莉.pdf

42 6 Vol42, o6 2012 12 BATT ERY BIMO THLY Dec,2012 1 1 1 1, 2 王 莉 ,李建军, 高 剑 ,何向明 ( 1清华大学核能与新能源技术研究院, 北京 100084; 2 清华大学汽车安全与节能国家重点实验室, 北京 100084) : 分析了影响锂离子电池安全性的主要因素和关键材料通过钴酸锂( LiCoO ) 表面包覆和使用电解液阻燃添加剂, 研 2 制了具有较好耐过充安全性的原型LiCoO 正极锂离子电池该电池经1 C20 V 过充电, 没有燃烧的现象 2 : 锂离子电池; 安全性; 热失控过程; 控制策略; 钴酸锂 : TM9129 : A : 1001- 1579( 2012)06- 0299- 03 Overcharge safety of Li-ion battery with lithium cobalt oxide cathode 1 1 1 1, 2 WA G Li , LI Jian-jun ,GAO Jian , HE Xiang-ming ( 1Institute of N uclear New Energy Technology , Tsinghua University, Beij ing 100084, China; 2State K ey aboratory of A utomotive S af ety and Energy, Tsinghua University, Beij ing 100084, China) Abstract:The main factors and key materials responsible for Li-ion battery safety were analyzedThe overcharge safety lithium cobalt oxide(LiCoO ) cathode prototype L-i ion battery was developed based on surface coating LiCoO and using fire resistant elec- 2 2 trolyte additivesThe battery did not fire while overcharged with 1 C ,20 V L-i ion battery; safety; thermal runaway process; control strategy; lithium cobalt oxide( LiCoO ) Key words: 2 , , 3 [ 1] LiCoO , 2 ,( LiCoO )