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Title:
リチウムイオン電池
Document Type and Number:
Japanese Patent JP5261882
Kind Code:
B2
Abstract:

To provide a lithium-ion battery enough securing airtightness and a steam barrier property inside an outer package having a laminated body made of complex films in a bag or a tray shape, and preventing burst of the outer package due to rise of an inner pressure as well as leak of electrolyte.

A safety valve 6 is provided at a part of a peripheral edge of the outer package 5 for releasing outside gas generated inside the outer package, constituted of a valve part 9 opening when gas pressure inside the outer package surpasses a given value, a gas permeating part 7 permeating nothing but gas, and a gas ventilating channel 8 guiding the gas from the valve part 9 to the gas permeating part, and the valve part 9 and gas permeating part 7 are arranged inside and outside the outer package, respectively, through the gas ventilating channel 8.

COPYRIGHT: (C)2007,JPO&INPIT


Inventors:
Hirohisa Akita
Application Number:
JP2006068502A
Publication Date:
August 14, 2013
Filing Date:
March 14, 2006
Export Citation:
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Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
H01M2/12; H01M2/02; H01M2/08
Domestic Patent References:
JP2006125559A
JP60158663U
JP2007149378A
JP2006210275A
JP2001015391A
JP2005123423A
JP58193566U
JP2003037028A
JP2000335649A
JP2002245980A
JP9265967A
Attorney, Agent or Firm:
Shizuo Sano
Inoue On



 
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