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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 9583759 B1

PDFFull Text
Date of Patent:
Feb. 28, 2017

Filed:

May. 02, 2013

Cathode active material, method of manufacturing the same and battery

Applicant:

Sony Corporation, Tokyo, JP;

Inventors:

Guohua Li, Fukushima, JP;

Nozomu Morita, Fukushima, JP;

Tomoyo Ooyama, Fukushima, JP;

Kiyohiko Suzuki, Fukushima, JP;

Kotaro Satori, Kanagawa, JP;

Hideto Azuma, Fukushima, JP;

Yosuke Hosoya, Fukushima, JP;

Koji Morita, Fukushima, JP;

Haruo Watanabe, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:

K&L Gates LLP

Primary Examiner:

Laura Weiner

Int. Cl.
CPC ...
H01M 4/36 (2006.01); B05D 5/12 (2006.01); H01M 4/131 (2010.01); H01M 10/0525 (2010.01); C01G 45/12 (2006.01); C01G 51/00 (2006.01); C01G 53/00 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/58 (2010.01); H01M 4/04 (2006.01); H01M 4/485 (2010.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); B05D 5/12 (2013.01); C01G 45/1228 (2013.01); C01G 51/42 (2013.01); C01G 51/50 (2013.01); C01G 53/50 (2013.01); H01M 4/0402 (2013.01); H01M 4/131 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/5825 (2013.01); H01M 10/0525 (2013.01); C01P 2002/02 (2013.01); C01P 2002/50 (2013.01); C01P 2002/52 (2013.01); C01P 2002/72 (2013.01); C01P 2002/74 (2013.01); C01P 2004/32 (2013.01); C01P 2004/50 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2004/80 (2013.01); C01P 2006/40 (2013.01); Y02E 60/122 (2013.01);
Abstract

A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode () includes a cathode active material including a lithium complex oxide including Li and at least one kind selected from the group consisting of Co, Ni and Mn, and P and at least one kind selected from the group consisting of Ni, Co, Mn, Fe, Al, Mg and Zn as coating elements on a surface of the lithium complex oxide. Preferably, the contents of the coating elements are higher on the surface of the cathode active material than those in the interior thereof, and decrease from the surface to the interior.

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