Fluorine-containing solvents for lithium batteries having increased
safety
    1.
    发明授权
    Fluorine-containing solvents for lithium batteries having increased safety 失效
    用于锂电池的含氟溶剂具有增加的安全性

    公开(公告)号:US5916708A

    公开(公告)日:1999-06-29

    申请号:US853856

    申请日:1997-05-09

    IPC分类号: H01M10/40 H01M6/16

    CPC分类号: H01M6/164 H01M2300/0034

    摘要: The safety of secondary lithium cells is remarkedly enhanced when partially fluorinated ethers of the formulaeRO--�(CH.sub.2).sub.m O!.sub.n --CF.sub.2 --CFH--X (I)and/orX--CFH--CF.sub.2 O--�(CH.sub.2).sub.m O!.sub.n --CF.sub.2 --CFH--X(II)are being used, wherein R is a straight-chain alkyl group containing 1 to 10 carbon atoms or a branched alkyl group containing 3 to 10 carbon atoms, X is fluorine, chlorine or a perfluoroalkyl group containing 1 to 6 carbon atoms, which may also contain ethereal oxygen, m is an integer from 2 to 6 and n is an integer from 1 to 8. Preferred are compounds of the formula (I), wherein R is a methyl group, X is fluorine, m is 2 and n is an integer from 1 to 3 and also compounds of the formula (II), wherein m is 2 and n is an integer from 1 to 3.

    摘要翻译: 当式RO- [(CH2)mO] n-CF2-CFH-X(I)和/或X-CFH-CF2O - [(CH2)mO] n的部分氟化醚时,二次锂电池的安全性明显增强 使用-CF 2 -CFH-X(II),其中R是含有1至10个碳原子的直链烷基或含有3至10个碳原子的支链烷基,X是氟,氯或含氟的全氟烷基 1至6个碳原子,其也可以含有醚氧,m是2至6的整数,n是1至8的整数。优选的是式(I)的化合物,其中R是甲基,X是 氟,m为2,n为1〜3的整数,式(II)的化合物,m为2,n为1〜3的整数。