logo

For the Inventor, By the Inventor

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.:

US 8911903 B1

PDFFull Text
Date of Patent:
Dec. 16, 2014

Filed:

Jul. 02, 2007

Cathode active material, its manufacturing method, and non-aqueous electrolyte secondary battery

Applicants:

Haruo Watanabe, Kanagawa, JP;

Tomoyo Ooyama, Fukushima, JP;

Masanori Soma, Fukushima, JP;

Kenji Ogisu, Tokyo, JP;

Inventors:

Haruo Watanabe, Kanagawa, JP;

Tomoyo Ooyama, Fukushima, JP;

Masanori Soma, Fukushima, JP;

Kenji Ogisu, Tokyo, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:

K&L Gates LLP

Primary Examiner:

Kenneth Douyette

Assistant Examiner:

James Lee

Int. Cl.
CPC ...
H01M 4/52 (2010.01); H01M 4/485 (2010.01); H01M 4/36 (2006.01); H01M 4/1391 (2010.01); H01M 4/525 (2010.01); H01M 4/131 (2010.01); H01M 10/052 (2010.01); H01M 4/505 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); H01M 4/485 (2013.01); H01M 4/366 (2013.01); H01M 10/052 (2013.01); H01M 4/1391 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); Y02E 60/122 (2013.01); H01M 4/02 (2013.01);
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.

Find Patent Forward Citations

Watanabe, Haruo. (2014). Cathode active material, its manufacturing method, and non-aqueous electrolyte secondary battery (U.S. Patent No. 8911903). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8911903

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…