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.

中文翻译：

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1-丁基-1-甲基吡咯烷鎓六氟磷酸酯作为阻燃添加剂对锂离子电池循环性能和热性能的影响

在液体电解质中使用1-丁基-1-甲基吡咯烷鎓六氟磷酸盐（BMP-PF ₆）作为阻燃添加剂，研究了BMP-PF ₆含量对锂离子电池循环性能和热性能的影响。自熄时间和DSC研究表明，向电解液中添加BMP-PF ₆可显着抑制电解液的可燃性并改善电池的热稳定性。发现在电解质中的最佳BMP-PF ₆含量为10重量％，以提高安全性而不降低电池的循环性能。