Metal hydride electrochemical cell having a polymer electrolyte
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United States of America Patent
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Jul 30, 1996
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app pub date -
Nov 6, 1995
filing date -
Nov 6, 1995
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Abstract
An improved metal hydride hydrogen storage alloy electrochemical cell (10) includes a positive electrode (20) and a negative electrode (30) having disposed therebetween, a polymer electrolyte (40). The polymer electrolyte (40) comprises a polymer support structure fabricated of, for example, polyvinyl alcohol or polyvinyl acetate, and having dispersed therein an electrolyte active species such as, for example, KOH. The improved electrolyte for a metal hydride hydrogen storage alloy cell provides a battery cell free from electrolyte leakage, and having ionic conductivities which allow for an efficient use of the metal hydride electrodes.
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