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Solid polymer electrolyte, battery and solid-state electric double layer capacitor using the same as well as processes for the manufacture thereof

  • US 5,665,490 A
  • Filed: 06/07/1995
  • Issued: 09/09/1997
  • Est. Priority Date: 06/03/1993
  • Status: Expired due to Term
First Claim
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1. A solid polymer electrolyte comprising a composite of:

  • (a) a polymeric component, wherein said polymeric component comprises at least one member selected from the group consisting of;

    (i) a polymer obtained from at least one compound having alcoholic hydroxyl groups, wherein at least one hydrogen atom of said alcoholic hydroxy groups is replaced by a unit represented by general formula (X);

    
    
    space="preserve" listing-type="equation">CH.sub.2 ═

    C(R.sup.1)C(═

    O){O(CH.sub.2).sub.x (CH(CH.sub.3)).sub.y }.sub.z NHC(═

    O)OR.sup.2 -- (X)wherein R1 represents a hydrogen or a methyl group;

    R2 represents a divalent organic group containing at least one oxyalkylene group and said organic group may be linear, branched or cyclic and may contain one or more atoms other than carbon, hydrogen or oxygen;

    x and y each represents zero or an integer of between 1 and 5;

    z represents zero or an integer of between 1 and 10, provided that z is zero when both x and y are zero;

    wherein subunit {O(CH2)x (CH(CH3))y }z of said unit of formula (X) may comprise substituents (CH2) and (CH(CH3)) in various arrangements, provided that each of R1, R2, x, y and z of each said unit of formula (X) are as defined above and each unit may be the same or different; and

    (ii) a copolymer comprising at least one of said compounds as a co-monomer; and

    (b) at least one electrolyte salt.

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