Chloromethyl pivalate based electrolyte for non-aqueous lithium oxygen batteries  

作　　者：Taoran Li Chaolumen Wu Huanhuan Yuan Lei Li Jun Yang 

机构地区：[1]School of Chemistry and Chemical Engineering, Shanghai Key Lab of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, China [2]Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

出　　处：《Chinese Chemical Letters》2017年第11期2155-2158,共4页中国化学快报（英文版）

基　　金：supported by the National Basic Research Program of China (No. 2014CB932303);National Natural ScienceFoundation of China (No. 21573145)

摘　　要：A novel electrolyte with chloromethyl pivalate （CP） used as solvent was first reported for non-aqueous lithium-oxygen （Li-O2） batteries. Since there are no α-H atoms in the structure of CP, the CP based electrolyte in both superoxide radical solution and real LifO2 battery environment showed good chemical stability against superoxide radicals, which was confirmed by ^1H NMR and ^13C NMR measurements. Without a catalyst in the cathode of Li-O2 batteries, the batteries showed high specific capacity and cycling stability.A novel electrolyte with chloromethyl pivalate （CP） used as solvent was first reported for non-aqueous lithium-oxygen （Li-O2） batteries. Since there are no α-H atoms in the structure of CP, the CP based electrolyte in both superoxide radical solution and real LifO2 battery environment showed good chemical stability against superoxide radicals, which was confirmed by ^1H NMR and ^13C NMR measurements. Without a catalyst in the cathode of Li-O2 batteries, the batteries showed high specific capacity and cycling stability.

关 键 词：Li-O2 battery Chemical stability Chloromethyl pivalate Electrolyte 

分 类 号：O646[理学—物理化学] TM912[理学—化学]