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. 30, 2014
Filed:
Sep. 07, 2011
Masayoshi Suzuta, Tokyo, JP;
Takuya Muraki, Tokyo, JP;
Masayoshi Suzuta, Tokyo, JP;
Takuya Muraki, Tokyo, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Abstract
According to the present invention, a lithium ion battery outer cover material that has superior resistance to electrolytes without chromate treatment, has superior deep drawing formability and high quality, and can be produced easily is provided. The lithium ion battery outer cover material () of a first embodiment of the present invention has a base material layer (), first adhesive layer () containing an adhesive, aluminum foil layer (), corrosion prevention treated layer (), second adhesive layer () containing an adhesive or adhesive resin, and sealant layer () laminated in that order. The base material layer () is a film base material in which the difference (α) of the elasticity (α) to the yield point and the elasticity (α) to the rupture point as measured according to JIS-K7127 is 100% or greater in at least one of the MD direction and TD direction.