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:
Aug. 03, 2010
Filed:
Aug. 30, 2005
Kenji Nakai, Fukaya, JP;
Katsutoshi Kurihara, Naka-gun, JP;
Yoshimasa Koishikawa, Hitachinaka, JP;
Kenji Hara, Iga, JP;
Syouji Hirahata, Iga, JP;
Kenji Nakai, Fukaya, JP;
Katsutoshi Kurihara, Naka-gun, JP;
Yoshimasa Koishikawa, Hitachinaka, JP;
Kenji Hara, Iga, JP;
Syouji Hirahata, Iga, JP;
Shin-Kobe Electric Machinery Co., Ltd., Tokyo, JP;
Abstract
A non-aqueous electrolyte secondary battery that can restrict lowering of battery performance during battery preservation is provided. A negative electrode that a negative electrode mixture including graphite is applied on a rolled copper foil and a positive electrode that a positive electrode mixture including lithium manganate is applied on an aluminum foil are used. An oxide in which one element selected from Al, Si, Ti, V, Cr, Fe, Ni, Cu, Zn, Zr, Mo, W, Pb and dissimilar to elements constituting the lithium manganate is oxidized is intermixed with the lithium manganate. An intermixture amount of the oxide is set such that a molar number of the dissimilar element contained in one gram of the positive electrode active material to a molar number of lithium contained in one gram of the positive electrode active material is not more than 5/1000. Charge transfer is restricted by the oxide during battery preservation.