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:
Sep. 24, 2013
Filed:
Dec. 08, 2009
Noriyuki Maruyama, Toyota, JP;
Yuta Nemoto, Toyota, JP;
Noriyuki Maruyama, Toyota, JP;
Yuta Nemoto, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
A secondary battery comprises a flat wound electrode body, a flat-type hard case housing the wound electrode body, and a film sandwiched between them. The film is formed with thick portions each of which is located at a boundary region between a flat portion and a curved portion of the surface of the wound electrode body. When a plurality of the secondary batteries are bound, therefore, load is applied widely on almost the entire wound electrode body, thereby enabling exertion of sufficient generation capability. Thus, a secondary battery with improved battery performance is provided in which load is sufficiently applied on an electrode body. The secondary battery can also be used as a battery assembly, a battery to be mounted on a vehicle, and a battery to be mounted on a battery mounting device.