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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 11876210 B1

PDFFull Text
Date of Patent:
Jan. 16, 2024

Filed:

May. 09, 2023

Positive electrode active material for lithium secondary battery, method of preparing the same, and positive electrode for lithium secondary battery and lithium secondary battery which include the positive electrode active material

Applicant:

Lg Energy Solution, Ltd., Seoul, KR;

Inventors:

Tae Gu Yoo, Daejeon, KR;

Young Uk Park, Daejeon, KR;

Jin Tae Hwang, Daejeon, KR;

Wang Mo Jung, Daejeon, KR;

Sung Bin Park, Daejeon, KR;

Assignee:

LG Energy Solution, Ltd.;

Attorney:

Lerner David LLP

Primary Examiner:

Wyatt P McConnell

Int. Cl.
CPC ...
H01M 4/131 (2010.01); 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 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
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 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01);
Abstract

A positive electrode active material includes a lithium transition metal oxide, which is doped with doping element M, wherein Mincludes at least one of Al, Ti, Mg, Zr, W, Y, Sr, Co, F, Si, Na, Cu, Fe, Ca, S, or B, and contains nickel in an amount of 60 mol % or more based on a total number of moles of transition metals excluding lithium, wherein the lithium transition metal oxide has a single particle form, and includes a center portion having a layered structure and a surface portion having a rock-salt structure, and the doping element Mis included in an amount of 3,580 ppm to 7,620 ppm based on a total weight of the positive electrode active material.

Find Patent Forward Citations

Yoo, Tae. (2024). Positive electrode active material for lithium secondary battery, method of preparing the same, and positive electrode for lithium secondary battery and lithium secondary battery which include the positive electrode active material (U.S. Patent No. 11876210). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11876210

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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