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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 9077023 B1

PDFFull Text
Date of Patent:
Jul. 07, 2015

Filed:

Sep. 23, 2011

Cathode active material having manganese oxide and boron, cathode and lithium battery including cathode active material, and method of preparing the cathode active material

Applicants:

Min-ju Kim, Yongin-si, KR;

Yong-chul Park, Yongin-si, KR;

Gyeong-jae Heo, Yongin-si, KR;

Hyun-deok Lee, Yongin-si, KR;

Mi-ran Song, Yongin-si, KR;

Jin-hyoung Seo, Yongin-si, KR;

Na-leum Yoo, Yongin-si, KR;

Inventors:

Min-Ju Kim, Yongin-si, KR;

Yong-Chul Park, Yongin-si, KR;

Gyeong-Jae Heo, Yongin-si, KR;

Hyun-Deok Lee, Yongin-si, KR;

Mi-Ran Song, Yongin-si, KR;

Jin-Hyoung Seo, Yongin-si, KR;

Na-Leum Yoo, Yongin-si, KR;

Assignee:

SAMSUNG SDI CO., LTD., Yongin-si, Gyeonggi-do, KR;

Attorney:

Knobbe Martens Olson & Bear LLP

Primary Examiner:

Zachary Best

Int. Cl.
CPC ...
H01M 4/131 (2010.01); C01G 45/12 (2006.01); C01G 51/12 (2006.01); C01G 53/00 (2006.01); H01M 4/04 (2006.01); H01M 4/1391 (2010.01); H01M 4/36 (2006.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); C01G 45/1242 (2013.01); C01G 51/12 (2013.01); C01G 53/54 (2013.01); C01P 2002/72 (2013.01); C01P 2004/03 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01); H01M 4/0471 (2013.01); H01M 4/1391 (2013.01); H01M 4/364 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01); Y02T 10/7011 (2013.01); Y02E 60/122 (2013.01);
Abstract

A cathode active material including: a lithium manganese oxide of which primary particles has a diameter of 1 μm or more and which has a spinel structure in which an X-ray diffraction (XRD) peak intensity ratio of I(111)/I(311) is 1.0 or more; and a boron element disposed at least one position selected from the group consisting of inside the primary particles and on surfaces of the primary particles.

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