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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 9859555 B1

PDFFull Text
Date of Patent:
Jan. 02, 2018

Filed:

Jan. 26, 2015

Positive active material, positive electrode, lithium battery including the same, and method of manufacturing thereof

Applicant:

Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;

Inventors:

Jung-Yeon Won, Yongin-si, KR;

Eun-Young Goh, Yongin-si, KR;

Jin-Hyon Lee, Yongin-si, KR;

Ju-Hee Sohn, Yongin-si, KR;

Jong-Ki Lee, Yongin-si, KR;

Seung-Wan Kim, Yongin-si, KR;

Ju-Hyeong Han, Yongin-si, KR;

Assignee:

Samsung SDI Co., Ltd., Gyeonggi-Do, KR;

Attorney:

Knobbe Martens Olson & Bear LLP

Primary Examiner:

Laura Weiner

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/58 (2010.01); H01M 4/525 (2010.01); H01M 4/1391 (2010.01); H01M 4/131 (2010.01); C01G 53/00 (2006.01); C01B 25/45 (2006.01); H01M 4/02 (2006.01); H01M 4/136 (2010.01); H01M 4/1397 (2010.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); C01B 25/45 (2013.01); C01G 53/006 (2013.01); C01G 53/42 (2013.01); C01G 53/50 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/525 (2013.01); H01M 4/5825 (2013.01); C01P 2004/03 (2013.01); C01P 2004/61 (2013.01); C01P 2004/80 (2013.01); H01M 4/136 (2013.01); H01M 4/1397 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

Provided is a positive active material, a positive electrode including the positive active material, a lithium battery, and a manufacturing method of the same. The positive active material includes a core including a lithium nickel composite oxide and a coating layer formed on the core. The coating layer improves structural stability of the positive active material. Accordingly, lifespan properties of a lithium battery including the positive active material may be improved.

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