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. 28, 2009
Filed:
Jul. 08, 2005
Masami Suzuki, Kawasaki, JP;
Muneto Hayami, Takasaki, JP;
Kazuo Udagawa, Tokyo, JP;
Kazuo Iizuka, Takasaki, JP;
Naomi Ishihara, Annaka, JP;
Satoshi Hirahara, Annaka, JP;
Hirotaka Sakai, Usui-gun, JP;
Kiyoto Yoda, Kawasaki, JP;
Masataka Shikota, Yokohama, JP;
Masami Suzuki, Kawasaki, JP;
Muneto Hayami, Takasaki, JP;
Kazuo Udagawa, Tokyo, JP;
Kazuo Iizuka, Takasaki, JP;
Naomi Ishihara, Annaka, JP;
Satoshi Hirahara, Annaka, JP;
Hirotaka Sakai, Usui-gun, JP;
Kiyoto Yoda, Kawasaki, JP;
Masataka Shikota, Yokohama, JP;
Toshiba Battery Co., Ltd., Tokyo, JP;
Abstract
A non-aqueous electrolyte secondary cell containing an electricity-generating element with at least a cathode, a separator and an anode and a non-aqueous electrolyte inside a cathode case, electrode units each consisting of the cathode and the anode opposite to each another via the separator laminated to form an electrode group, or an electrode unit in a sheet form consisting of the cathode and the anode opposite to each another via the separator wound to form an electrode group, or a sheet-shape cathode wrapped with the separator except for a part contacting at inner face of cathode case and a sheet-shaped anode set on the sheet-shaped cathode in a right angled position each other and bent alternately to form an electrode group, and the total sum of the areas of the opposing cathode and anode in the electrode group larger than the area of the opening of an insulating gasket in a sealed portion in the cathode case or than the area of an opening in a sealed plate in a sealed portion in the cathode case.