Battery with flame intercepting filter and grounding lead

Details Battery with flame intercepting filter and grounding lead Battery with flame intercepting filter and grounding lead

1980-08-08

1981-10-13

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

Having specified venting, feeding or circulation structure

Venting structure

429 89, H01M 212

Patent

active

042948967

ABSTRACT:
An electrical storage battery, which includes a battery casing formed with a gas venting exhaust passage which communicates the interior of the battery casing to the atmosphere; a flame intercepting filter located at an intermediate portion of the gas venting exhaust passage and extending across it; and a means for grounding part of the vicinity of a part of the passage which is on the atmosphere side of the flame intercepting filter. Thereby, sparking is prevented from occurring from a high voltage electrical source outside the battery to any conducting film of electrolyte formed on the wall of the passage on the inner side of the filter, and thus explosion of hydrogen gas/oxygen mixture within the battery casing is guarded against.

REFERENCES:
patent: 4091180 (1978-05-01), Fox et al.

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