Metal hydride electrochemical cell having a polymer electrolyte

Details Metal hydride electrochemical cell having a polymer electrolyte Metal hydride electrochemical cell having a polymer electrolyte

1995-11-06

1996-07-30

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

Sealed cell having gas prevention or elimation means

Prevention or elimination means is one of the cell...

429192, 429222, H01M 438, H01M 1036

Patent

active

055410197

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.

REFERENCES:
patent: 4847174 (1989-07-01), Palmer et al.
patent: 5104617 (1992-04-01), Fetcenko et al.
patent: 5238756 (1993-08-01), Fetcenko et al.
patent: 5393617 (1995-02-01), Klein
patent: 5451474 (1995-09-01), Wu et al.

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