Lead-acid accumulator, particularly for motor vehicles

Details Lead-acid accumulator, particularly for motor vehicles Lead-acid accumulator, particularly for motor vehicles

1998-07-09

2000-09-19

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Having specified venting, feeding or circulation structure

429 82, 429 84, H01M 212, H01M 1052

Patent

active

061209317

ABSTRACT:
The accumulator comprises a container or vessel with a plurality of holes which define vent ducts for the gases developed in the accumulator. A filtering element is provided in each duct for allowing gases to pass through but preventing the electrolyte from passing through. The filtering element is constituted by a porous substrate combined with a polytetrafluoroethylene membrane.

REFERENCES:
patent: 3909302 (1975-09-01), Mermelstein
patent: 4002495 (1977-01-01), Hakarine
patent: 4237526 (1980-12-01), Wood
patent: 5417743 (1995-05-01), Dauber

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