Electrode assemblies for electrochemical cells

Details Electrode assemblies for electrochemical cells Electrode assemblies for electrochemical cells

1986-03-03

1987-06-30

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429209, 429210, 429218, H01M 1024

Patent

active

046770410

ABSTRACT:
An anode breakthrough coating at the interface of a consumable anode and an electrically conductive metallic substrate of an electrode assembly is useful in minimizing harmful side effects, such as reduced voltage and cell efficiency and generation of heat and hydrogen gas, such as are experienced with prior electrochemical cells near the end of discharge.
The coating may take the form of a perforated electrically insulating layer on the substrate, a layer of material having a high hydrogen overvoltage relative to the metallic substrate bonded to the substrate, an insulating film formed on the portions of the substrate when exposed to the aqueous electrolyte, or a deposited electrolyte solution additive on the exposed substrate surface.

REFERENCES:
patent: 3880671 (1975-04-01), Kordesch et al.
patent: 3923542 (1975-12-01), Benda
patent: 4080489 (1978-03-01), Dey
patent: 4264690 (1981-04-01), Rao
patent: 4269907 (1981-05-01), Momyer et al.

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