Chemistry: electrical current producing apparatus – product – and – Process of cell operation – Electrolyte circulation
Patent
1976-10-19
1978-02-14
LeFevour, Charles F.
Chemistry: electrical current producing apparatus, product, and
Process of cell operation
Electrolyte circulation
429 67, 429139, H01M 238
Patent
active
040740218
ABSTRACT:
A battery preferably for use as a power source in an electrical vehicle includes a plurality of envelope separators for reducing the concentration of waste products at the surface of the battery plates. The envelope separators comprise two thin sheets of microporous material which are bonded together at their edges and placed between each of the plates of the battery. The envelope separators while being nonconductive are highly porous thereby allowing electrical current to pass from one plate to the other through the separators in the electrolytic solution of the battery. The electrolyte is pumped into each envelope separator under pressure and is forced out through the pores or small holes in the sides of the envelope to flush water, gas and loose particles of active material away from the plates of the battery. By forcing the electrolyte against the plates of the battery, the concentration or specific gravity of the electrolyte at the surface of the plates is increased, thereby increasing battery efficiency.
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patent: 3615838 (1971-10-01), Erickson
patent: 3703417 (1972-11-01), Rosa et al.
patent: 3799809 (1974-03-01), Bohm et al.
Electric Fuel Propulsion Corporation
LeFevour Charles F.
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