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    NON-AQUEOUS ELECTROLYTE CONTAINING ADDITIVE FOR NON-AQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY CONTAINING SAME
    3.
    发明公开
    NON-AQUEOUS ELECTROLYTE CONTAINING ADDITIVE FOR NON-AQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY CONTAINING SAME 审中-实审

    公开(公告)号：EP4369458A1

    公开(公告)日：2024-05-15

    申请号：EP23740524.6

    申请日：2023-01-13

    申请人： LG Energy Solution, Ltd.

    发明人： CHO, Yoon Gyo ,  OH, Jeong Woo ,  LEE, Chul Haeng

    IPC分类号： H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/052 ,  C08L29/04 ,  C08L29/10 ,  C08L33/16 ,  H01M4/02

    CPC分类号： Y02E60/10 ,  C08L29/04 ,  C08L29/10 ,  C08L33/16 ,  H01M4/02 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/052

    摘要： The present invention provides a non-aqueous electrolyte including a lithium salt, an organic solvent, a compound represented by Formula 1 below as a first additive, and a polymer including a repeating unit represented by Formula 2-1, Formula 2-2, and Formula 2-3 as a second additive.

    In Formula 1 above, R is a substituted or unsubstituted alkylene group having 1 to 3 carbon atoms, and R1 to R3 are each independently H, an alkyl group having 1 to 3 carbon atoms, or a nitrile group.

    In Formula 2-1 above, R4 is any one selected from the group consisting of H, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkynyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, a cycloalkenyl group having 3 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, a halogen atom, and a nitrile group.

    In Formula 2-2 above, Ra is an alkyl group having 1 to 10 carbon atoms which is substituted with at least one nitrile group, and R5 is any one selected from the group consisting of H, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkynyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, a cycloalkenyl group having 3 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, a halogen atom, and a nitrile group.


    In Formula 2-3 above, Rb is a perfluoroalkyl group having 1 to 10 carbon atoms, and R6 is any one selected from the group consisting of H, an alkyl group having 1 to 10 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkynyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, a cycloalkenyl group having 3 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, a halogen atom, and a nitrile group.