Maintenance-free high capacity lead battery or accumulator

Details Maintenance-free high capacity lead battery or accumulator Maintenance-free high capacity lead battery or accumulator

1993-12-17

1995-11-21

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Blowout type

429 57, 429 72, 429204, H01M 212, H01M 1052

Patent

active

054685753

ABSTRACT:
The invention refers to a gas-tight, maintenance-free high capacity lead accumulator with a sulphuric acid thixotrope (13) as electrolyte. To ensure operatability of the accumulator in upright as well as in horizontal position, the liquid electrolyte released under certain charging conditions has to be collected. For this purpose layers of fibrous web (10, 22) of highly porous and absorbing material are at least partially provided at the edges of the accumulator and above the plate group (1) which temporarily store liquid electrolyte and again release it.

REFERENCES:
patent: 3518125 (1970-06-01), Fischbach
patent: 4169918 (1979-10-01), Moore
patent: 5173374 (1992-12-01), Tiedemann et al.

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