二氟双草酸磷酸锂的合成及其与石墨半电池的适配性研究

Study on Synthesis of Lithium Difluorodioxalate Phosphate and Its Adaptability with Graphite Half-cell

对新型锂盐二氟双草酸磷酸锂的合成进行研究,将合成的高纯度二氟双草酸磷酸锂产品应用于石墨半电池中,探究二氟双草酸磷酸锂作为主盐和添加剂在高温时对电池性能的改善作用。结果表明:二氟双草酸磷酸锂能有效提升六氟磷酸锂基电解液在石墨半电池中的循环性能和倍率性能。

The synthesis of new lithium salt lithium difluorodioxalate phosphate was studied.The synthesized high purity lithium difluorodioxalate phosphate product was applied in graphite half-cell.The improvement effect of lithium difluorodioxalate phosphate as main salt and additive on battery performance at high temperature was explored.The results show that lithium difluorodioxalate phosphate can effectively improve the cycling performance and rate performance of LiPF6-based electrolyte in graphite half-cell.