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Perfluoroalkylsulfonates, sulfonimides, and sulfonyl methides, and electrolytes containing them

  • US 5,514,493 A
  • Filed: 03/06/1995
  • Issued: 05/07/1996
  • Est. Priority Date: 03/06/1995
  • Status: Expired due to Term
First Claim
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1. An electrolyte composition comprising a salt disposed in a matrix,said salt having a formula selected from the group consisting of ##STR11## in which X- is selected from the group consisting of --O-, --N- SO2 Rf3 and ##STR12## Z is selected from the group consisting of --CF2 --, --O--, --NRf8 --, and --SF4 --;

  • Rf1 and Rf2, independently, are selected from the group consisting of --CF3, --Cm F2m+1, and --(CF2)q --SO2 --X- M+ ;

    Rf3, Rf4, and Rf5, independently, are selected from the group consisting of --CF3, --Cm F2m+1, --(CF2)q --SO2 --X- M+, ##STR13## Rf8 is selected from the group consisting of --CF3, --Cm F2m+1, and --(CF2)q --SO2 --X- M+ ;

    Rf6 and Rf7, independently, are perfluoroalkylene moieties having the formula --Cr F2r ;

    where n is 1-4;

    r is 1-4;

    m is 1-12;

    q is 1-4; and

    M+ is a counterion.

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