Chemistry: electrical current producing apparatus – product – and – Means externally releasing internal gas pressure from closed... – Blowout type
Patent
1987-11-25
1988-11-08
Walton, Donald L.
Chemistry: electrical current producing apparatus, product, and
Means externally releasing internal gas pressure from closed...
Blowout type
429174, 429181, 296232, H01M 212
Patent
active
047833831
ABSTRACT:
The present invention relates to a sealed type battery provided with a safety valve and a method of manufacturing the same, the sealed type battery of the present invention has a mouth-sealing plate, provided with the safety valve, serving as a terminal of one polarity, being arranged through an insulating member in a hole of a metallic cover closing an opened portion of an exterior can serving as a terminal of the other polarity, and an extension of a hole edge of the metallic cover being cramped to the insulating member to fix said mouth-sealing plate, whereby the cramping diameter can be reduced in comparison with that of the conventional battery, and as a result, the high hermeticity can be given to the battery and the electrolyte can be completely prevented from leaking.
REFERENCES:
patent: 3537903 (1970-11-01), Braun
patent: 3834942 (1974-09-01), Tietze
patent: 4345611 (1982-08-01), Ikeda et al.
patent: 4532705 (1985-08-01), Zupancic et al.
Machida Toyoji
Nagao Nobuhiro
Nakashima, deceased Hitoshi
Narukawa Satoshi
Sakai Akiyoshi
Sanyo Electric Co,. Ltd.
Walton Donald L.
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