Electrolytic membrane and process for its photo-crosslinking on a cathodic membrane
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United States of America Patent
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Feb 23, 1999
Issued Date -
N/A
app pub date -
Sep 26, 1997
filing date -
Nov 17, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Electrolytic membrane for light rechargeable batteries essentially consisting of: 1) polymer deriving from the photopolymerization of a mixture essentially consisting of a vinyl ether having the general formula (I) R--?--O--CH.sub.2 CH.sub.2 --!.sub.n --O--CH.dbd.CH.sub.2, and a divinyl ether having the general formula (II) CH.sub.2 .dbd.CH--?--O--CH.sub.2 --CH.sub.2 --!.sub.m --O--CH.dbd.CH.sub.2, in a quantity of between 15 and 60% by weight; 2) plasticizer in a quantity of between 35 and 75% by weight; 3) Lithium salt in a quantity of between 5 and 20% by weight; 4) photopolymerization initiator in such a quantity as to photopolymerize (I) and (II); 5) zeolite in a quantity of between 3 and 30% by weight; the percentage sum of components (1) to (5) being equal to 100.
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