Film-armored battery and method of manufacturing the battery

Details Film-armored battery and method of manufacturing the battery Film-armored battery and method of manufacturing the battery

2011-03-08

2011-03-08

Maples, John S (Department: 1728)

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Blowout type

C429S053000, C429S162000, C429S178000

Reexamination Certificate

active

07901806

ABSTRACT:
In a film-packed battery which stores a battery element (9) with packing films (8a,8b) and sealed by heat-sealing heat-sealed surfaces of the packing films around the battery element, a heat-sealed portion (6) projecting toward a battery element is provided at part of a heat-sealed portion (5), and a gas releasing portion (7) is formed close to the projecting heat-sealed portion. A pressure safety valve for safely releasing a gas to the outside when the gas is generated in the battery is provided without lowering the reliability of the battery.

REFERENCES:
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Japanese Office Action dated Jun. 22, 2010 with an English Translation.

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