Lead-acid battery construction

Details Lead-acid battery construction Lead-acid battery construction

1986-04-25

1988-04-05

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

With nonbattery electrical component electrically connected...

429 60, 429 61, 429228, H01M 1048

Patent

active

047358700

ABSTRACT:
The power characteristics of a lead-acid battery are improved by incorporating a dispersion of 1 to 10% by weight of a thermodynamically stable conductivity additive, such as conductive tin oxide coated glass fibers (34) of filamentary glass wool (42) in the positive active layer (32) carried on the grid (30) of the positive plate (16). The avoiding of positive plate reversal to prevent reduction of the tin oxide is accomplished by (a) employing an oversized positive plate and pre-charging it; (b) by pre-discharging the negative plate; and/or (c) by placing a circuit breaker (26) in combination with the plates (16, 18) and terminals (22, 24) to remove the load when the voltage of the positive plate falls below a pre-selected level.

REFERENCES:
patent: 2951106 (1960-08-01), Ruetschi
patent: 3170819 (1965-02-01), Abramson
patent: 4289836 (1981-09-01), Lemelson

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