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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 11024838 B1

PDFFull Text
Date of Patent:
Jun. 01, 2021

Filed:

Apr. 03, 2017

Production method of negative electrode active material for non-aqueous electrolyte secondary battery and production method of negative electrode for non-aqueous electrolyte secondary battery

Applicant:

Shin-etsu Chemical Co., Ltd., Tokyo, JP;

Inventors:

Hiromichi Kamo, Takasaki, JP;

Takakazu Hirose, Annaka, JP;

Katsunori Nishiura, Chiba, JP;

Nan Fang, Ichihara, JP;

Assignee:

SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Brittany L Raymond

Int. Cl.
CPC ...
H01M 4/04 (2006.01); H01M 4/131 (2010.01); H01M 4/134 (2010.01); H01M 4/1391 (2010.01); H01M 4/1395 (2010.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/485 (2010.01); H01M 10/052 (2010.01); H01M 4/48 (2010.01); H01M 4/40 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/134 (2013.01); H01M 4/0471 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/1395 (2013.01); H01M 4/364 (2013.01); H01M 4/382 (2013.01); H01M 4/386 (2013.01); H01M 4/405 (2013.01); H01M 4/48 (2013.01); H01M 4/485 (2013.01); H01M 10/052 (2013.01); H01M 2004/027 (2013.01);
Abstract

A production method of a negative electrode active material for non-aqueous electrolyte secondary batteries containing particles of lithium-containing silicon compound includes: preparing particles of silicon compound containing a silicon compound (SiOx: 0.5≤x≤1.6); obtaining particles of lithium-containing silicon compound by making the particle of silicon compound contact with a solution A that contains lithium and has an ether-based solvent as a solvent; and heating the particles of the lithium-containing silicon compound. A production method of a negative electrode active material for non-aqueous electrolyte secondary batteries is capable of increasing battery capacity of the negative electrode active material and capable of improving the first time efficiency and cycle characteristics.

Find Patent Forward Citations

Kamo, Hiromichi. (2021). Production method of negative electrode active material for non-aqueous electrolyte secondary battery and production method of negative electrode for non-aqueous electrolyte secondary battery (U.S. Patent No. 11024838). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11024838

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

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