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:
Jul. 17, 2012
Filed:
May. 20, 2009
Ryoko Masuyoshi, Ibaraki, JP;
Mitsutoshi Watanabe, Suita, JP;
Tetsuo Kawai, Takatsuki, JP;
Toshiyuki Edamoto, Takatsuki, JP;
Ryoko Masuyoshi, Ibaraki, JP;
Mitsutoshi Watanabe, Suita, JP;
Tetsuo Kawai, Takatsuki, JP;
Toshiyuki Edamoto, Takatsuki, JP;
Hitachi Maxell Energy, Ltd., Otokuni-Gun, Kyoto, JP;
Abstract
Sheet-shaped mixture layers are placed on both sides of a current collector to form an electrode (positive electrode) with a layered structure. The electrode with a layered structure and a counter electrode (negative electrode) thereof are wound via a separator, while a positional shift in a winding direction is caused between the current collector and the sheet-shaped mixture layers of the electrode with the layered structure, whereby a winding body is formed. The winding body is placed in a battery case (outer can) to constitute a battery. Particularly, in the electrode with a layered structure, by forming the current collector of a plain-woven wire net, a metal foil, expanded metal, a lath, or punching metal, a battery with satisfactory productivity suitable for an intermediate load can be provided at a low cost.