Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...
Patent
1997-11-07
1999-11-09
Maples, John S.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Cell enclosure structure, e.g., housing, casing, container,...
429175, 429 54, H01M 204, H01M 208
Patent
active
059811048
ABSTRACT:
A cap assembly of a battery includes a cap cover in which ventilation holes are formed in the center portion, a cap assembled on the upper edge of the cap cover, and ventilation rubber interposed between the cap cover and the cap for opening and closing the ventilation holes. At least two and preferably two to four ventilation holes are formed in the cap cover. Accordingly, the life span of a battery employing the cap assembly can be greatly enhanced.
REFERENCES:
patent: 5759713 (1998-06-01), DePalma et al.
patent: 5888668 (1999-03-01), Park
Maples John S.
Samsung Display Devices Co. Ltd.
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