电源技术2018，Vol.42Issue(3)：343-346,4.
复合三元电池高温循环性能研究
High temperature performance of lithium-ion batteries based on LiNi0.6Co0.2Mn0.2O2 and LiMn0.8Fe0.2PO4 blended cathode
王光俊 1吴小兰 1袁雪芹 1陈炜 1张宏立1
作者信息
- 1. 合肥国轩高科动力能源有限公司,安徽合肥230011
- 折叠
摘要
Abstract
The high temperature performance of lithium-ion batteries based on LiNi0.6Co02Mn02O2 and LiMn0.8Fe0.2PO4 blended cathode was investigated from solvent,electrolyte salts and additives.The results were as follows:The cycle numbers are increased from 150 times to 300 times at 55 ℃ by replacing DMC by DEC and reducing the contents of EMC as solvent;By using 1.0 mol/L LiPF6 and 0.2 mol/L LiFSI as the electrolyte salts,the cell impedance is significantly reduced,resulting to 500 cycles;By adding 0.5％ LiODFB as additive,the cycles is further increased to 700 times with the improved anode SEI.However,with the increased LiODFB additive,a large amount of CO and CO2 is generated,which seriously affects cycle performance.关键词
复合三元/高温循环/电解液/添加剂Key words
blended cathode/high temperature performance/electrolyte/additive分类
信息技术与安全科学引用本文复制引用
王光俊,吴小兰,袁雪芹,陈炜,张宏立..复合三元电池高温循环性能研究[J].电源技术,2018,42(3):343-346,4.
