申请人:Koh Meiten
公开号:US08871384B2
公开(公告)日:2014-10-28
There is provided a non-aqueous electrolytic solution comprising an electrolyte salt, a specific fluorine-containing solvent and a fluorine-containing cyclic carbonate represented by the formula (A1):
wherein X1 to X4 are the same or different and each is —H, —F, —CF3, —CHF2, —CH2F, —CF2CF3, —CH2CF3 or —CH2OCH2CF2CF3; at least one of X1 to X4 is —F, —CF3, —CF2CF3, —CH2CF3 or —CH2OCH2CF2CF3, and the non-aqueous electrolytic solution has further excellent noncombustibility and is suitable for lithium secondary batteries.
提供一种非水电解质溶液,包括电解质盐、一种特定的含氟溶剂和一种由式(A1)表示的含氟环状碳酸酯:其中X1到X4相同或不同,每个为—H,—F,—CF3,—CHF2,—CH2F,—CF2CF3,—CH2CF3或—CH2OCH2CF2CF3;X1到X4中至少有一个为—F,—CF3,—CF2CF3,—CH2CF3或—CH2OCH2CF2CF3。该非水电解质溶液具有极佳的不燃性,适用于锂离子电池。