Method of fabricating an electrolytic cell employing a solid polymer electrolyte
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United States of America Patent
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May 6, 2003
Grant Date -
Aug 2, 2001
app pub date -
Mar 16, 2001
filing date -
Aug 22, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A solid polymer electrolyte for an electrolytic cell is prepared by a sol-gel process in which an active metal ion conducting liquid electrolyte, e.g. a lithium-ion electrolyte, containing a salt which is stable in the presence of water, e.g. lithium bisperfluoroethanesulfonimide, LiN(SO.sub.2 C.sub.2 F.sub.5).sub.2, is admixed in aqueous solution with an alkoxide, e.g. silica alkoxide, to form a liquid precursor which is added to the electrolytic cell between the anode and cathode thereof and allowed to solidify in situ to form the solid electrolyte.
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