Casing for a battery

Details Casing for a battery Casing for a battery

1998-04-02

2000-05-09

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

429 72, 429 82, 429175, H01M 212

Patent

active

060601914

ABSTRACT:
A casing for a battery of the present invention is made up of a top-open box and a lid closing the open top of the box. The lid has a pyramidal top portion formed with a plurality of vent holes for allowing a gas to pass therethrough. A polymeric osmotic film allowing a gas to pass therethrough, but intercepting water, is fitted in each of the vent holes. The casing therefore vents hydrogen output from a battery while preventing water from entering it.

REFERENCES:
patent: 3802597 (1974-04-01), Miller
patent: 4338383 (1982-07-01), Jutte et al.

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