Battery

Details Battery Battery

2007-01-23

2009-06-23

Ryan, Patrick (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Blowout type

C429S007000, C429S082000

Reexamination Certificate

active

07550225

ABSTRACT:
A battery capable of preventing deformation thereof when gas is generated is provided. In the battery, a safety valve is electrically connected to a battery element, and an insulating plate is arranged between the battery element and the safety valve. The safety valve has a plurality of vent holes around a central portion thereof. The insulating plate has seven or more openings in the circumferential direction in a position where the openings can face to the vent holes of the safety valves around a central portion thereof.

REFERENCES:
patent: 4581304 (1986-04-01), Beatty et al.
patent: 7214445 (2007-05-01), Miyaki
patent: 2006/0115736 (2006-06-01), Hashimoto et al.
patent: 2001-210384 (2001-08-01), None
patent: 2004-111105 (2004-04-01), None

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