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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 9190662 B1

PDFFull Text
Date of Patent:
Nov. 17, 2015

Filed:

Feb. 14, 2014

Cathode active material, method of manufacturing it, cathode, and battery

Applicant:

Sony Corporation, Tokyo, JP;

Inventors:

Haruo Watanabe, Kanagawa, JP;

Kenji Ogisu, Tokyo, JP;

Koji Morita, Fukushima, JP;

Masanori Soma, Fukushima, JP;

Yosuke Hosoya, Fukushima, JP;

Hideto Azuma, Fukushima, JP;

Tomoyo Ooyama, Fukushima, JP;

Assignee:

SONY CORPORATION, , JP;

Attorney:

Sheridan Ross P.C.

Primary Examiner:

Melvin C Mayes

Assistant Examiner:

Sheng H Davis

Int. Cl.
CPC ...
H01M 4/36 (2006.01); C01G 45/12 (2006.01); C01G 49/00 (2006.01); C01G 51/00 (2006.01); C01G 53/00 (2006.01); H01M 4/131 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); C01G 45/1228 (2013.01); C01G 45/1235 (2013.01); C01G 45/1242 (2013.01); C01G 49/0027 (2013.01); C01G 51/42 (2013.01); C01G 51/44 (2013.01); C01G 51/50 (2013.01); C01G 53/42 (2013.01); C01G 53/50 (2013.01); H01M 4/131 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); C01P 2002/52 (2013.01); C01P 2002/54 (2013.01); C01P 2002/72 (2013.01); C01P 2002/74 (2013.01); C01P 2004/61 (2013.01); C01P 2004/84 (2013.01); C01P 2006/40 (2013.01); Y02E 60/122 (2013.01);
Abstract

A cathode active material capable of increasing a capacity and improving high temperature characteristics or cycle characteristics, a method of manufacturing it, a cathode using the cathode active material, and a battery using the cathode active material are provided. In a cathode active material contained in a cathode, a coating layer is provided on at least part of complex oxide particle containing at least lithium (Li) and cobalt (Co). The coating layer is an oxide which contains lithium (Li) and at least one of nickel (Ni) and manganese (Mn).

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