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.

Date of Patent:
Nov. 11, 2025

Filed:

Aug. 17, 2021
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Jongmin Roh, Daejeon, KR;

Seokhyun Yoon, Daejeon, KR;

Yoon Jae Lee, Daejeon, KR;

Donghoon Suh, Daejeon, KR;

Assignee:

LG Chem, Ltd., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G 51/82 (2025.01); C01G 51/42 (2025.01); H01M 4/02 (2006.01); H01M 4/62 (2006.01); H01M 10/052 (2010.01); H01M 50/46 (2021.01);
U.S. Cl.
CPC ...
C01G 51/82 (2025.01); C01G 51/42 (2013.01); H01M 4/628 (2013.01); H01M 10/052 (2013.01); H01M 50/46 (2021.01); C01P 2002/54 (2013.01); C01P 2004/61 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01);
Abstract

A lithium transition metal oxide which is capable of minimizing a side reaction with an electrolyte, thereby suppressing the generation of gas during charging and discharging of a lithium secondary battery is provided. The lithium transition metal oxide is a lithium cobalt oxide which contains a hetero-element, wherein the hetero-element includes a 4th period transition metal; and at least one selected from the group consisting of a group 2 element, a group 13 element, a group 14 element, a 5th period transition metal, and a 6th period transition metal. The lithium transition metal oxide has a cumulative 50% particle diameter (D50) of 10.0 μm to 25.0 μm and a ratio (D/D) of a maximum particle diameter (D) to a minimum particle diameter (D) of 10.0 to 60.0 when measured by laser diffraction scattering particle size distribution.


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