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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 11973209 B1

PDFFull Text
Date of Patent:
Apr. 30, 2024

Filed:

Jun. 07, 2019

Positive electrode active material including single particles of lithium nickel composite transition metal oxide, method of preparing the same, and lithium secondary battery including the same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Eun Hee Lee, Daejeon, KR;

Seong Bae Kim, Daejeon, KR;

Young Su Park, Daejeon, KR;

Yi Rang Lim, Daejeon, KR;

Hong Kyu Park, Daejeon, KR;

Song Yi Yang, Daejeon, KR;

Byung Hyun Hwang, Daejeon, KR;

Woo Hyun Kim, Daejeon, KR;

Assignee:

LG Chem, Ltd., Seoul, KR;

Attorney:

Lerner David LLP

Primary Examiner:

Sean P Cullen

Int. Cl.
CPC ...
H01M 4/131 (2010.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/134 (2010.01); H01M 4/1391 (2010.01); H01M 4/1395 (2010.01); H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); H01M 4/0471 (2013.01); H01M 4/134 (2013.01); H01M 4/1391 (2013.01); H01M 4/1395 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (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);
Abstract

A positive electrode active material for a secondary battery includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide has a layered crystal structure of space group R3m, includes the nickel (Ni) in an amount of 60 mol % or less based on a total amount of transition metals, includes the cobalt (Co) in an amount greater than an amount of the manganese (Mn), and is composed of single particles.

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