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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 9837661 B1

PDFFull Text
Date of Patent:
Dec. 05, 2017

Filed:

Jan. 21, 2015

Cathode active material for lithium secondary battery and lithium secondary battery comprising the same

Applicant:

Ecopro Bm Co., Ltd., Cheongju-si, Chungcheongbuk-do, KR;

Inventors:

Jik Soo Kim, Chungcheongbuk-do, KR;

Moon Ho Choi, Chungcheongbuk-do, KR;

Jin Kyeong Yun, Chungcheongbuk-do, KR;

Jae Yong Jung, Chungcheongbuk-do, KR;

Suk Yong Jeon, Chungcheongbuk-do, KR;

Jong Seung Shin, Chungcheongbuk-do, KR;

Assignee:

ECOPRO BM CO., LTD., Cheongju-si, KR;

Attorney:

Saliwanchik, Lloyd & Eisenschenk

Primary Examiner:

Kaity Chandler

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/58 (2010.01); H01M 4/505 (2010.01); H01M 10/0525 (2010.01); H01M 4/525 (2010.01); H01M 10/052 (2010.01); C01B 25/16 (2006.01); C01G 45/00 (2006.01); C01G 45/12 (2006.01); C01G 51/00 (2006.01); C01G 53/00 (2006.01); C01B 25/45 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); C01B 25/16 (2013.01); C01B 25/45 (2013.01); C01G 45/006 (2013.01); C01G 45/1228 (2013.01); C01G 51/006 (2013.01); C01G 51/42 (2013.01); C01G 51/50 (2013.01); C01G 53/006 (2013.01); C01G 53/42 (2013.01); C01G 53/50 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/5825 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); C01P 2002/20 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/45 (2013.01); C01P 2004/51 (2013.01); C01P 2004/54 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01);
Abstract

The present invention relates to an anode active material for lithium secondary battery and a lithium secondary battery including the same, and more specifically it relates to an anode active material for lithium secondary battery in which the a lithium ion diffusion path in the primary particles is formed to exhibit specific directivity, and a lithium secondary battery including the same. The cathode active material for lithium secondary battery of the present invention has a lithium ion diffusion path exhibiting specific directivity in the primary particles and the secondary particles, thus not only the conduction velocity of the lithium ion is fast and the lithium ion conductivity is high but also the cycle characteristics are improved as the crystal structure hardly collapses despite repeated charging and discharging.

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