Effect of 1-butyl-1-methylpyrrolidinium hexafluorophosphate as a flame-retarding additive on the cycling performance and thermal properties of lithium-ion batteries

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35

초록

1-Butyl-1-methylpyrrolidinium hexafluorophosphate (BMP-PF6) was used as a flame-retarding additive in the liquid electrolyte, and the influence of BMP-PF6 content on cycling performance and thermal properties of lithium-ion batteries was investigated. Self-extinguishing time and DSC studies demonstrated that the addition of BMP-PF6 to the electrolyte provided a significant suppression in the flammability of the electrolyte and an improvement in the thermal stability of the cell. The optimum BMP-PF6 content in the electrolyte was found to be 10 wt.% for improving safety without degrading cycling performance of the cell.

키워드

1-Butyl-1-methylpyrrolidinium phosphateLithium-ion batteryFlame retardantElectrolyte additiveThermal stabilityVINYL ETHYLENE CARBONATEELECTROCHEMICAL PERFORMANCEELECTROLYTE ADDITIVESTRIMETHYL PHOSPHATEGRAPHITE ANODELIQUIDINTERCALATIONBIPHENYLBEHAVIORLIXCOO2
제목
Effect of 1-butyl-1-methylpyrrolidinium hexafluorophosphate as a flame-retarding additive on the cycling performance and thermal properties of lithium-ion batteries
저자
Choi, Ji-AeSun, Yang KookShim, Eun-GiScrosati, BrunoKIM, DONG WON
DOI
10.1016/j.electacta.2011.09.009
발행일
2011-11
유형
Article
저널명
Electrochimica Acta
56
27
페이지
10179 ~ 10184