The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2012
Filed:
Mar. 24, 2009
Yoshitaka Shinyashiki, Kobe, JP;
Atsuhiro Funahashi, Toyonaka, JP;
Hitoshi Maeda, Kobe, JP;
Masayuki Fujiwara, Kasai, JP;
Yoshitaka Shinyashiki, Kobe, JP;
Atsuhiro Funahashi, Toyonaka, JP;
Hitoshi Maeda, Kobe, JP;
Masayuki Fujiwara, Kasai, JP;
SANYO Electric Co., Ltd., Moriguchi-shi, Osaka, JP;
Abstract
A laminate type battery includes a laminate battery case and an electrode assembly. The laminate battery case includes two laminate films each having a metal layer and plastic layers provided on both faces of the metal layer, and has a welded portion in which peripheral edges of the two laminate films are welded to each other. The electrode assembly is enclosed in the laminate battery case, and has a positive electrode plate, a negative electrode plate, and a separator disposed therebetween. An internal gas pressure sensing portion, in which the inner plastic layer of each of the laminate films is absent and the metal layers are in contact with each other so as to be in an electrically conductive state, is formed in a portion of the welded portion. A voltage detection hole, in which the outer plastic layer is absent and the metal layer is exposed, is formed in a surface of each of the two laminate films.