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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 11552294 B1

PDFFull Text
Date of Patent:
Jan. 10, 2023

Filed:

Sep. 30, 2020

Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active material

Applicant:

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

Inventors:

Jinhwa Kim, Yongin-si, KR;

Hyunbeom Kim, Yongin-si, KR;

Jongmin Kim, Yongin-si, KR;

Wooyoung Yang, Yongin-si, KR;

Donggyu Chang, Yongin-si, KR;

Jangsuk Hyun, Yongin-si, KR;

Assignee:

Samsung SDI Co., Ltd., Yongin-si, KR;

Attorney:

Lewis Roca Rothgerber Christie LLP

Primary Examiner:

Jonathan Crepeau

Assistant Examiner:

Jacob Buchanan

Int. Cl.
CPC ...
H01M 4/525 (2010.01); H01M 10/052 (2010.01); H01M 4/04 (2006.01); C01G 53/00 (2006.01); H01M 4/02 (2006.01); H01M 4/505 (2010.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 53/006 (2013.01); C01G 53/42 (2013.01); C01G 53/50 (2013.01); H01M 4/0471 (2013.01); H01M 10/052 (2013.01); C01P 2004/03 (2013.01); C01P 2004/20 (2013.01); C01P 2004/22 (2013.01); C01P 2004/24 (2013.01); C01P 2004/32 (2013.01); C01P 2004/50 (2013.01); C01P 2004/51 (2013.01); C01P 2004/54 (2013.01); C01P 2004/61 (2013.01); C01P 2006/16 (2013.01); C01P 2006/40 (2013.01); H01M 4/505 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

Provided are a nickel-based active material for a lithium secondary battery, a method of preparing the nickel-based active material, and a lithium secondary battery including a positive electrode including the nickel-based active material. The nickel-based active material includes at least one secondary particle that includes at least two primary particle structures, the primary particle structures each including a porous inner portion and an outer portion having a radially arranged structure, and the secondary particle including at least two radial centers.

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