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:
Dec. 16, 2014
Filed:
Jul. 02, 2007
Haruo Watanabe, Kanagawa, JP;
Tomoyo Ooyama, Fukushima, JP;
Masanori Soma, Fukushima, JP;
Kenji Ogisu, Tokyo, JP;
Haruo Watanabe, Kanagawa, JP;
Tomoyo Ooyama, Fukushima, JP;
Masanori Soma, Fukushima, JP;
Kenji Ogisu, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A cathode active material is provided. The cathode active material includes: a composite oxide particle including at least lithium and cobalt; a coating layer which is provided in at least a part of the composite oxide particle and includes an oxide including lithium and a coating element of at least one of nickel and manganese; and a surface layer which is provided in at least a part of the coating layer and includes at least one element selected from the group consisting of silicon, tin, phosphorus, magnesium, boron, zinc, tungsten, aluminum, titanium, and zirconium.