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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 11811052 B1

PDFFull Text
Date of Patent:
Nov. 07, 2023

Filed:

Mar. 28, 2019

Positive electrode active material for non-aqueous electrolyte secondary battery

Applicant:

Sumitomo Metal Mining Co., Ltd., Tokyo, JP;

Inventors:

Jiro Okada, Chiba, JP;

Tetsufumi Komukai, Ehime, JP;

Jun Yokoyama, Ehime, JP;

Takahiro Ogawa, Ehime, JP;

Tomoko Nakayama, Ehime, JP;

Assignee:

SUMITOMO METAL MINING CO., LTD., Tokyo, JP;

Attorney:

IPUSA, PLLC

Primary Examiner:

Milton I Cano

Assistant Examiner:

Oscar Londono

Int. Cl.
CPC ...
H01M 4/134 (2010.01); C01G 53/00 (2006.01); H01M 4/131 (2010.01); H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/134 (2013.01); C01G 53/50 (2013.01); H01M 4/131 (2013.01); H01M 4/366 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); C01P 2002/74 (2013.01); H01M 2004/028 (2013.01);
Abstract

The present invention provides a positive electrode active material for a non-aqueous electrolyte secondary battery including a lithium metal composite oxide powder represented by a general formula: LiNiCoMO, wherein 0<x≤0.35, 0≤y≤0.35, 0.95≤z≤1.30, −0.15≤α≤0.15, and M is at least one element selected from Mn, V, Mg, Mo, Nb, Ti and Al; and a coating layer placed on particle surfaces of the lithium metal composite oxide powder; wherein the coating layer is a mixed-phase of a crystalline phase and an amorphous phase.

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Quick Actions:

Okada, Jiro. (2023). Positive electrode active material for non-aqueous electrolyte secondary battery (U.S. Patent No. 11811052). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11811052

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