ELECTROLYTE SOLUTION, SECONDARY BATTERY, AND MODULE

    公开(公告)号:EP3982444A1

    公开(公告)日:2022-04-13

    申请号:EP20817765.9

    申请日:2020-06-05

    摘要: Provided are an electrolytic solution for a secondary battery that can improve cycle characteristics, a secondary battery, and a module including the same.
    An electrolytic solution for a secondary battery, the secondary battery comprising a positive electrode and a negative electrode containing an alkali metal, wherein
    the positive electrode comprises at least one compound selected from the group consisting of an alkali metal-containing transition metal composite oxide and an alkali metal-containing transition metal phosphate compound,
    the electrolytic solution comprises a compound represented by the following formula (1) and/or a compound represented by the following formula (2):

    ELECTROLYTE SOLUTION, ELECTROCHEMICAL DEVICE, LITHIUM BATTERY, AND MODULE
    7.
    发明公开
    ELECTROLYTE SOLUTION, ELECTROCHEMICAL DEVICE, LITHIUM BATTERY, AND MODULE 有权
    电解质溶液,电化学装置,锂电池和模块

    公开(公告)号:EP2887439A1

    公开(公告)日:2015-06-24

    申请号:EP13840561.8

    申请日:2013-09-25

    摘要: An object of the present invention is to provide a lithium cell exhibiting a high remaining capacity after high-temperature storage even if used at high voltages, and an electrolytic solution used for the cell. The present invention relates to an electrolytic solution containing a nonaqueous solvent; an electrolyte salt; and 10 vol% or more of a compound represented by the following formula (1) based on 100 vol% of the nonaqueous solvent,

    wherein R 1 , R 2 and R 3 may be the same as or different from one another, each representing a hydrogen atom, a fluorine atom, a C 1 -C 20 alkyl group, or a C 1 -C 20 fluorinated alkyl group, excluding cases where all of R 1 , R 2 , and R 3 are hydrogen atoms or fluorine atoms.

    摘要翻译: 本发明的目的是提供一种即使在高电压下使用时也显示高温保存后的高残留容量的锂电池以及用于该电池的电解液。 本发明涉及含有非水溶剂的电解液; 电解质盐; 和10体积%或更多的由下式(1)表示的化合物,基于100体积%的非水溶剂,其中R 1,R 2和R 3可以彼此相同或不同,各自表示氢原子, 氟原子,碳原子数1〜20的烷基或碳原子数1〜20的氟代烷基,但不包括R1,R2,R3全部为氢原子或氟原子的情况。

    ALKALI METAL ELECTRODE TREATMENT AGENT, ELECTROLYTIC SOLUTION FOR ALKALI METAL SECONDARY BATTERY, ALKALI METAL ELECTRODE, ALKALI METAL SECONDARY BATTERY, AND MODULE

    公开(公告)号:EP4007012A1

    公开(公告)日:2022-06-01

    申请号:EP20845911.5

    申请日:2020-06-30

    摘要: Provided is an electrode treatment agent for an alkali metal secondary battery that can improve the life of the battery by suppressing precipitation of dendrites. An alkali metal electrode treatment agent comprising an acrylate represented by the following general formula (1) :

    wherein X is a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a CFX 1 X 2 group (wherein X 1 and X 2 are the same as or different from each other and are each a hydrogen atom, a fluorine atom, or a chlorine atom), a cyano group, a linear or branched fluoroalkyl group having 1 to 21 carbon atoms, a substituted or unsubstituted benzyl group, a substituted or unsubstituted phenyl group, or a linear or branched alkyl group having 1 to 20 carbon atoms, Y is a direct bond, a hydrocarbon group having 1 to 10 carbon atoms and optionally having an oxygen atom or a sulfur atom, a - CH 2 CH 2 N(R 1 )SO 2 - group (wherein R 1 is an alkyl group having 1 to 4 carbon atoms), a -CH 2 CH(OY 1 )CH 2 - group (wherein Y 1 is a hydrogen atom or an acetyl group), or a -(CH 2 ) n SO 2 -group (n is 1 to 10), and Rf is a linear or branched fluorinated alkyl group having 2 to 7 carbon atoms, and/or
    a polymer containing an acrylate represented by the general formula (1) as a part or all of the constituent units.