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:
Jun. 03, 2008
Filed:
Sep. 29, 2004
Shinya Miyazaki, Naruto, JP;
Nobumichi Nishida, Itano-gun, JP;
Shinya Miyazaki, Naruto, JP;
Nobumichi Nishida, Itano-gun, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A positive electrode used in the non-aqueous electrolyte secondary battery of the present invention includes a hexagonal system lithium-containing cobalt composite oxide represented by the general expression ┌LiCoMO(M=Zr, Mg, Al)┘ obtained by synthesizing a lithium compound as a lithium source with a cobalt compound as a cobalt source to which 0.01 mol % or more and 1.0 mol % or less of zirconium is added and magnesium and/or aluminum is added through coprecipitation, as the positive electrode active material, whereby the thermal stability, load performance and charging/discharging cycle performance characteristics of the non-aqueous electrolyte secondary battery are improved without lowering its capacity and charging/discharging efficiency.