Electrochemical cell with improved safety

Details Electrochemical cell with improved safety Electrochemical cell with improved safety

1998-03-23

2000-03-07

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Blowout type

429 94, 4292311, 4292318, H01M 212

Patent

active

060337958

ABSTRACT:
The present invention provides a sealed electrochemical cell comprising a container containing a spiral-wound electrochemical group and at least one safety device for the event of a rise in internal pressure, wherein said safety device comprises gas vent first means allowing gas to escape to the outside of said container in the event of internal pressure rising, co-operating with holding second means for holding said group inside said container and organized so as to create a gap between said group and the inner wall of said container to allow said gas to flow.

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Patent Abstracts of Japan, vol. 097, No. 004, Apr. 30, 1997 corresponding to JP 08 329958 A (Fuji Electrochem Co Ltd) Dec. 13, 1996.
Patent Abstracts of Japan, vol. 005, No. 141 (E-073), Sep. 5, 1981 corresponding to JP 56 078077 A (Shin Kobe Electric Mach Co Ltd) Jun. 26, 1981.
Patent Abstracts of Japan, vol. 096, No. 007, Jul. 31, 1996 corresponding to JP 08 064198 A (Ship & AMP; Ocean Zaidan; Fuji Electrochem Co Ltd) Mar. 8, 1996.

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