摘要
将相同质量的两种导电炭黑LITX和SP分别与导电石墨KS-6混合,组成锂离子电池用双组分导电剂。两种双组分导电剂制成的电池分别进行电性能测试,经过分容和高温搁置后,以LITX+KS-6为导电剂的电池具有较高的容量,以SP+KS-6为导电剂的电池具有较小的内阻。在不高于2.0 C充电的情况下,以LITX+KS-6为导电剂的电池具有较高的充电电压和容量。HPPC和低温1.0 C放电性能测试结果表明,以SP+KS-6为导电剂的电池具有较小的内阻和较大的功率密度,较高的低温容量保持率、放电电压和放电容量。
Two kinds of conductive carbon black, LITX and SP were mixed with the conductive graphite KS-6 to compose two-component conductive agent for lithium ion battery, respectively. The electrical performance of two battery using two-component conductive agent were tested. After grading and laying in the high temperature, the battery using LITX + KS-6 conductive agent had the higher capacity, the battery using SP + KS-6 conductive agent had the smaller internal resistance. In case that charging was not higher than 2.0 C ratio, the battery using LITX +KS-6 conductive agent had the higher charge batteries voltage and capacity. Test results of HPPC and low temperature 1.0 C discharge performance show that the battery using SP + KS-6 conductive agent has the smaller internal resistance and the larger power density, the higher low temperature retention capacity ratio, discharge voltage and discharge capacity.
作者
刘中奎
左阳
马留可
LIU Zhong-kui,ZUO Yang,MA Liu-ke(Hefei Guoxuan High-tech Power Energy Co., Ltd.,Hefei Anhui 230011,China)
出处
《电源技术》
CAS
CSCD
北大核心
2018年第8期1110-1112,1133,共4页
Chinese Journal of Power Sources
基金
国家重点研发计划新能源汽车重大专项(2016YFB0100300)
关键词
锂离子电池
导电剂
倍率性能
低温性能
lithium-ion battery
conductive agent
rate performance
low temperature performance