Medium- or large-sized battery pack having safety device

Details Medium- or large-sized battery pack having safety device Medium- or large-sized battery pack having safety device

2007-01-03

2009-02-10

Yuan, Dah-Wei (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Having disparate nonelectrical function

C320S150000, C429S096000, C429S098000, C429S099000, C429S062000

Reexamination Certificate

active

07488546

ABSTRACT:
Disclosed herein is a medium- or large-sized battery pack having a plurality of unit cells. The battery pack includes a safety device (fire-extinguishing safety device) for spraying a material to prevent or restrain the fire or the explosion of the battery pack when the temperature of the battery pack exceeds the critical temperature level threatening the safety of the battery pack. The fire-extinguishing safety device according to the present invention has the effect of securing the safety of the battery pack when the temperature or the voltage is abruptly increased entirely or partially in the battery pack due to various causes, such as a breakdown of a safety system, and it is not possible to control the battery pack only by an operation control system.

REFERENCES:
patent: 5051325 (1991-09-01), Shishikura et al.
patent: 2005/0250007 (2005-11-01), Abe et al.
patent: WO 2005/096411 (2005-10-01), None

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