Design of a novel electrolyte additive for high voltage LiCoO2 cathode lithium-ion batteries: Lithium 4-benzonitrile trimethyl borate新型高电压LiCoO2正极锂离子电池电解液添加剂的设计: 4-苄腈三甲基硼酸锂JOURNAL OF POWER SOURCESIF7.92021-08-0141PREAI