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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 12603276 B1

PDFFull Text
Date of Patent:
Apr. 14, 2026

Filed:

Sep. 27, 2019

Active material, and positive electrode mixture and solid-state battery that use said active material

Applicant:

Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;

Inventors:

Daisuke Washida, Ageo, JP;

Hitohiko Ide, Ageo, JP;

Tetsuya Mitsumoto, Takehara, JP;

Jun Omura, Ageo, JP;

Yasuo Komoda, Ageo, JP;

Yasuhiro Shibata, Ageo, JP;

Yasunori Tabira, Ageo, JP;

Tomoyuki Maeda, Ageo, JP;

Assignee:

MITSUI KINZOKU COMPANY, LIMITED, Tokyo, JP;

Attorney:

NIXON & VANDERHYE

Primary Examiner:

Michael L Dignan

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 10/0562 (2010.01); H01M 10/0585 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/62 (2013.01); H01M 10/0562 (2013.01); H01M 10/0585 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0068 (2013.01);
Abstract

Disclosed is an active material that can reduce an interface resistance with a sulfide solid electrolyte and improve the battery performance. The active material exhibits at least one peak in the range of from 0.145 nm to 0.185 nm and at least one peak in the range of from 0.28 nm to 0.31 nm in a radial distribution function obtained through measurement of an X-ray absorption fine structure of the active material. The active material is for use in a solid-state battery. The active material preferably has a core particle, and a coating layer located on the surface of the core particle.

Find Patent Forward Citations

Washida, Daisuke. (2026). Active material, and positive electrode mixture and solid-state battery that use said active material (U.S. Patent No. 12603276). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12603276

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