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:
Oct. 28, 2008
Filed:
Feb. 13, 2007
Takashi Sato, Fukushima, JP;
Takahisa Ishimatsu, Fukushima, JP;
Kei Yonezawa, Tokyo, JP;
Yoshikatsu Yamamoto, Fukushima, JP;
Takashi Sato, Fukushima, JP;
Takahisa Ishimatsu, Fukushima, JP;
Kei Yonezawa, Tokyo, JP;
Yoshikatsu Yamamoto, Fukushima, JP;
Sony Corporation, Tokyo, JP;
Abstract
A cathode with a cathode active material is provided. The cathode active material is obtained by mixing a zirconium-containing lithium cobalt composite oxide containing zirconium as a sub-component element in a first lithium cobalt composite oxide expressed by a formula LiCoMO(where M is at least one kind of element selected from Fe, V, Cr, Ti, Mg, Al, B, and Ca; 0≦s≦0.03; 0.05≦t≦1.15), and a second lithium cobalt composite oxide expressed by a formula LiCoAO(where A is at least one kind of element selected from Mg and Al; 0.05≦x≦1.15; 0≦y≦0.03).