FABRICATION OF CELLULOSE POLYMER COMPOSITES AND THEIR APPLICATION AS SOLID ELECTROLYTES
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United States of America Patent
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Issued Date -
Jul 25, 2013
app pub date -
Apr 18, 2012
filing date -
Jan 23, 2012
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Abandoned
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Abstract
A solid polymer electrolyte composition is made by hydrolyzing cellulose in a dissolution media to form a first mixture; then combining said first mixture with an antisolvent to form a precipitate; and then (in any order) separating said precipitate from excess antisolvent and excess dissolution media; optionally adjusting or neutralizing the pH of said precipitate; optionally washing said precipitate with water; combining said precipitate with an electrolyte salt and a hydrophilic polymer to form a wet polymer electrolyte composition; and then drying said wet polymer electrolyte composition to produce a solid polymer electrolyte composition. Solid polymer electrolyte compositions produced by the process, along with films formed therefrom and devices containing the same, are also described.
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