Secondary battery with thermal protector

Details Secondary battery with thermal protector Secondary battery with thermal protector

2005-05-31

2005-05-31

Alejandro, Raymond (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

With control means responsive to battery condition sensing...

C429S007000, C429S175000, C429S181000, C429S163000

Reexamination Certificate

active

06899972

ABSTRACT:
A secondary battery includes: a battery unit in which a cathode plate, a separator, and an anode plate are sequentially disposed upon one another and wound together; a can provided as a housing for the battery unit, and into which an electrolyte is injected; a cap assembly bound to an upper portion of the can; and a thermal protector installed in the can for electrically connecting an electrode lead drawn from the battery unit to an electrode terminal via the cap assembly, and for cutting off current flow when the battery unit is overcharged. When the inner temperature of the battery rises due to overcharging, the thermal protector installed in the can accurately detects the increase in temperature, and cuts off current flow, thereby preventing thermal runaway and improving reliability of the secondary battery.

REFERENCES:
patent: 1032060 (2000-08-01), None
patent: 11-67190 (1999-03-01), None
patent: 11-067188 (1999-03-01), None
patent: P2000-0062499 (2000-10-01), None
“Notice to Submit response” issued by Korean Intellectual Property Office dated on Jul. 25, 2003.

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