【発明の名称】電気化学電池用の電流断続器

Japanese Patent JP2001519086

A

A current interrupt mechanism for electrochemical cells is disclosed. A thermally activated current interrupt mechanism is integrated into an end cap assembly for an electrochemical cell. The thermally responsive mechanism preferably includes a free floating bimetallic disk or shape memory alloy member which deforms when exposed to elevated temperature causing a break in an electrical pathway within the end cap assembly. This prevents current from flowing through the cell and effectively shuts down an operating cell. The thermally responsive mechanism may include a heat producing electrical resistance means, preferably a Zener diode, to enhance thermal sensitivity. The end cap assembly may include a pressure responsive mechanism which ruptures when there is extreme gas pressure buildup. Gas is allowed to escape from the cell interior to the external environment through a series of vent apertures within the end cap assembly.

Jeffrey, Poirier
Paul, Cheeseman
Michael, mcdermot
Jane A. Brage
Reynardo, Kantab
Jeffrey, Hughes
Jelena, Kusunito Sofa
Bupendola, Patel
Viet, boo
William, T. McHugh
Rushen, P. Fontaine
Robert, Jay Pinault
Alex, Kaplan

JP54285698A

October 16, 2001

April 08, 1998

Click for automatic bibliography generation  

Duracell, Inc.

H01C7/10; H01M50/574; H02J7/00; H01H35/34; H01H37/32; H01H37/54; H01H37/76; H01M6/50; (IPC1-7): H01M2/34; H01M2/12; H02J7/00

JPH117931A	1999-01-12
JPH117932A	1999-01-12
JPH05266878A	1993-10-15
JPH05325943A	1993-12-10
JPH117931A	1999-01-12
JPH117932A	1999-01-12
JPH05266878A	1993-10-15
JPH05325943A	1993-12-10

Kazuo Sato (3 others)

Previous Patent: 電気化学電池用の電流断続器

Next Patent: 電磁継電器