摘要
考察了锂离子电池正极中加入石墨烯后,不同含量对锂离子电池倍率性能、循环性能、荷电保持、高温存储性能的影响。实验结果表明:石墨烯导电性能优于Super P,与超导炭黑相当;0.5%石墨烯导电性能不能取代1.0%Super P;石墨烯可以提高电芯85℃/4h存储、60℃/7d荷电性能。
Effects of different graphene content in cathode on high-rate discharge, cycle life, charge retentivity, high temperature performance of Li-ion battery were investigated. The results shows that：graphene electric conductivity is better than Super P, which is the same with superconductive carbon black. 0.5 % graphene in cell electric conductivity can not replace 1% Super P. Graphene can enhance the cell performance of 85℃/4 h and 60℃/7 d.
出处
《山西化工》
2013年第6期10-12,15,共4页
Shanxi Chemical Industry
关键词
锂离子电池
石墨烯
电性能
高倍率
超导炭黑
Super
P
Li-ion battery
graphene
electrical performance
high-rate discharge
superconductive carbon black
Super P
