Rechargeable battery having safety vent

Details Rechargeable battery having safety vent Rechargeable battery having safety vent

2011-05-17

2011-05-17

Ruddock, Ula C. (Department: 1729)

Chemistry: electrical current producing apparatus, product, and

Cell support for removable cell

For plural cells

C429S164000, C429S175000, C429S176000, C429S177000, C429S178000

Reexamination Certificate

active

07943251

ABSTRACT:
A lithium rechargeable battery includes a current interrupt device in a cap assembly that includes a weakened central breakage portion that is designed to break and interrupt the current in the battery when the pressure inside the battery increases.

REFERENCES:
patent: 6555263 (2003-04-01), Kim et al.
patent: 6730430 (2004-05-01), Chang
patent: 2004/0091769 (2004-05-01), Kawabata et al.
patent: 09-102330 (1997-04-01), None
patent: 2001-229913 (2001-08-01), None
patent: 10-0357950 (2001-08-01), None

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