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

作　　者：王洁[1,2,3] 蔡海峰 宋林虎 王鹏 张宁霜[1,2,3] 李世友 WANG Jie;CAI Hai-feng;SONG Lin-hu;WANG Peng;ZHANG Ning-shuang;LI Shi-you(School of Petrochemical Technology,Lanzhou University of Technology,Lanzhou,Gansu 730050,China;Key Laboratory cf Low Carbon Energy and Chemical Engineering of Gansu Province,Lanzhou,Gansu 730050,China;Gcuisu Engineering Laboratory of Electrolyte Material far Lithium-ion Battery,Lanzhou,Gansu 730050,China)

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050 [2]甘肃省低碳能源化工重点实验室,甘肃兰州730050 [3]甘肃省锂离子电池电解液材料工程实验室,甘肃兰州730050

出　　处：《浙江化工》2022年第2期12-17,共6页Zhejiang Chemical Industry

基　　金：国家自然科学基金(21766017);甘肃省自然科学基金(20JR5RA469)。

摘　　要：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.

关 键 词：锂离子电池 二氟双草酸磷酸锂 合成 电化学性能 石墨半电池 

分 类 号：TM912[电气工程—电力电子与电力传动] TQ131.11[化学工程—无机化工]