Ionic conductive solid electrolyte, method of manufacturing the same and electrochemical system using the same
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United States of America Patent
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Sep 5, 2006
Grant Date -
May 1, 2003
app pub date -
Oct 4, 2002
filing date -
Oct 31, 2001
priority date (Note) -
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Abstract
An object of the present invention is to provide a low cost and highly ionic conductive solid electrolyte which is an organic-inorganic composite compound and is water-absorbing as well as water-resistive. Another object of the present invention is to provide electrochemical systems utilizing the above-mentioned electrolyte. The solid electrolyte of the present invention is a composite compound comprising tungstic and/or molybdic acid compound and polyvinylalcohol (PVA), and containing water. Tungstate and/or molybdate and other salt are neutralized by an acid in the aqueous solution dissolving PVA. Then, the water as the solvent of the aqueous solution is removed, and then the unnecessary salts are removed, thereby obtaining the composite compound.
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