Short circuit and overcharge protected battery pack

Details Short circuit and overcharge protected battery pack Short circuit and overcharge protected battery pack

1997-06-13

1999-11-02

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

With nonbattery electrical component electrically connected...

429 62, 296232, H01M 1048

Patent

active

059767200

ABSTRACT:
A battery pack having an electrical circuit including a battery array of one or more batteries, a thermostat switch, and a positive temperature coefficient resistor (PTCR). Preferably, the thermostat and PTCR are disposed in a trianguloid channel formed by the nip of adjacent cylindrical batteries in a multiple battery pack so that the finished pack may have the same size and shape as a non-protected pack for the same application. Preferably, the batteries are rechargeable and the pack includes a charging plug connected across the battery array in series with the thermostat and PTCR. Preferably, the pack is wrapped in a film of a heat-shrinkable polymer to provide physical integrity.

REFERENCES:
patent: 5150033 (1992-09-01), Conway
patent: 5496654 (1996-03-01), Perkins
patent: 5689173 (1997-11-01), Oosaki et al.
PolySwitch, PolySwitch RUE, R-Line PTC Overcurrent Protection (Date Unknown).

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