logo

For the Inventor, By the Inventor

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 12381201 B1

PDFFull Text
Date of Patent:
Aug. 05, 2025

Filed:

Jun. 19, 2019

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:

Daisuke Endo, Kyoto, JP;

Hiromasa Muramatsu, Kyoto, JP;

Ryo Harada, Kyoto, JP;

Assignee:

GS Yuasa International Ltd., Kyoto, JP;

Attorney:

RANKIN, HILL & CLARK LLP

Primary Examiner:

Laura Weiner

Int. Cl.
CPC ...
H01M 4/131 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 10/058 (2010.01); H01M 10/44 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 10/058 (2013.01); H01M 10/44 (2013.01); H01M 2004/028 (2013.01);
Abstract

A positive active material for a nonaqueous electrolyte secondary battery, containing a lithium-transition metal composite oxide, in which the lithium-transition metal composite oxide has an α-NaFeOstructure, with the molar ratio Li/Me of Li to the transition metal (Me) being 1.05≤Li/Me<1.4, and contains Ni and Mn, or contains Ni, Co, and Mn as the transition metal (Me), with the molar ratio Mn/Me of Mn to Me being 0.4≤Mn/Me<0.6, and the molar ratio Ni/Me of Ni to Me being 0.2≤Ni/Me≤0.6.

Find Patent Forward Citations

Endo, Daisuke. (2025). 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. 12381201). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12381201

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

Loading…