Explosion resistant battery cells

Details Explosion resistant battery cells Explosion resistant battery cells

1981-05-19

1983-08-09

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

429 72, 429 89, H01M 212

Patent

active

043979190

ABSTRACT:
An explosion resistant battery cell incorporating safety features adapted to counter the effects of the build-up of high internal pressures. The external metallic casing for the cell has a non-cylindrical cross-section which may be square, rectangular or other geometric configuration other than cylindrical to allow bulging of the outer walls which may result from internal pressure build-up. A thermal venting mechanism is provided in the nature of a low melting point metal plug inserted in the end of an associated electrolyte fill tube, the metal plug providing a hermetic seal but having a melting point considerably below the temperature at which explosion of the battery cell might occur depending on the electrolyte being used.

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