电解质
电化学
锂(药物)
阻燃剂
可燃性
循环伏安法
电池(电)
材料科学
锂离子电池
离子
电极
无机化学
化学
化学工程
有机化学
复合材料
医学
功率(物理)
物理
物理化学
量子力学
工程类
内分泌学
作者
Xiaoming Zhu,Xiaoyu Jiang,Xinping Ai,Hanxi Yang,Yuliang Cao
标识
DOI:10.1016/j.electacta.2015.02.247
摘要
Bis(2,2,2-Trifluoroethyl) ethylphosphonate (TFEP) is first synthesized as a flame retardant additive for conventional carbonate electrolyte to improve the safety of lithium ion batteries. The inflammability and electrochemical stability of the TFEP containing electrolyte are studied. The self-extinguishing time test shows that TFEP provides a significant suppression of the flammability of the electrolyte. When adding 20% TFEP, the electrolyte cannot be ignited, exhibiting superior flame retardancy. Cyclic voltammetry and electrochemical charge/discharge tests show that TFEP has insignificant impact on the electrodes’ electrochemical performance. The results demonstrate that TFEP can be used as a novel highly effective safety additive for lithium ion batteries.
科研通智能强力驱动
Strongly Powered by AbleSci AI