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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 12388116 B1

PDFFull Text
Date of Patent:
Aug. 12, 2025

Filed:

Jun. 19, 2019

Positive active material for nonaqueous electrolyte secondary battery, method for producing positive active material for nonaqueous electrolyte secondary battery, positive electrode for nonaqueous electrolyte secondary battery, nonaqueous electrolyte secondary battery, method for manufacturing nonaqueous electrolyte secondary battery, and method of using nonaqueous electrolyte secondary battery

Applicant:

Gs Yuasa International Ltd., Kyoto, JP;

Inventors:

Hiromasa Muramatsu, Kyoto, JP;

Ryo Harada, Kyoto, JP;

Akira Kishimoto, Kyoto, JP;

Assignee:

GS Yuasa International Ltd., Kyoto, JP;

Attorney:

RANKIN, HILL & CLARK LLP

Primary Examiner:

Tracy M Dove

Int. Cl.
CPC ...
H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 10/44 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0568 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 10/0569 (2013.01); H01M 10/446 (2013.01); H01M 10/448 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0028 (2013.01);
Abstract

A nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte, in which the positive electrode includes, as an active material, a lithium-transition metal composite oxide that has an α-NaFeO-type crystal structure, and is represented by the general formula LiMeO(0<α, Me is a transition metal element containing Ni and Mn, or containing Ni, Mn, and Co), and has a diffraction peak observed in the range of 20° or more and 22° or less in an X-ray diffraction pattern obtained with a CuKα line.

Find Patent Forward Citations

Muramatsu, Hiromasa. (2025). Positive active material for nonaqueous electrolyte secondary battery, method for producing positive active material for nonaqueous electrolyte secondary battery, positive electrode for nonaqueous electrolyte secondary battery, nonaqueous electrolyte secondary battery, method for manufacturing nonaqueous electrolyte secondary battery, and method of using nonaqueous electrolyte secondary battery (U.S. Patent No. 12388116). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12388116

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