二氟磷酸锂制备研究进展

Research Progress on Preparation of Lithium Difluorophosphate

二氟磷酸锂是一种在锂离子电池电解液中具有优异性能表现的功能添加剂,可以在锂离子电池的正负极表面形成低阻抗的界面膜,抑制电极与电解液之间的副反应,提高电池的循环寿命。对近年来二氟磷酸锂的合成工艺研究进展进行了回顾,并对各技术方案的特点进行总结。

Lithium difluorophosphate is a functional additive with excellent performance in the electrolyte of lithium ion battery.It can form a low-impedance interface film on the surface of the positive and negative electrodes of lithium ion battery,which suppresses the side reaction between the electrode and the electrolyte,and improves the cycle life of the battery.The synthesis research progress of lithium difluorophosphate was reviewed and the characteristics of each technical solution were summarized.