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:
Jan. 20, 2015
Filed:
Feb. 25, 2011
Yuta Kobayashi, Fukushima, JP;
Hisashi Tsujimoto, Fukushima, JP;
Masaki Kuratsuka, Fukushima, JP;
Yuzuru Fukushima, Miyagi, JP;
Yuta Kobayashi, Fukushima, JP;
Hisashi Tsujimoto, Fukushima, JP;
Masaki Kuratsuka, Fukushima, JP;
Yuzuru Fukushima, Miyagi, JP;
Sony Corporation, Tokyo, JP;
Abstract
A cylindrical nonaqueous electrolyte secondary battery includes: a wound electrode unit as a wound electrode laminate of belt-like positive and negative electrodes laminated via a separator, the positive electrode including a positive electrode collector and a positive electrode active material layer, and the negative electrode including a negative electrode collector and a negative electrode active material layer; an adhesive member provided to cover the wound electrode laminate at a terminating end portion lying on an outer side of the wound electrode unit; and a battery canister housing the wound electrode unit, the adhesive member including a base material, and an adhesive layer provided on a whole surface or on at least a part of the surface on one side of the base material, and the base material being a mixture of a resin material of high swellability and a resin material of high melting point.