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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 11814296 B1

PDFFull Text
Date of Patent:
Nov. 14, 2023

Filed:

Jul. 20, 2018

Carbon-coated silicon oxide/graphite composite particles, methods of making, and applications of the same

Applicant:

Imerys Graphite & Carbon Switzerland Ltd., Bodio, CH;

Inventors:

Michael Spahr, Bellinzona, CH;

Michal Gulas, Malvaglia, CH;

Tatsuo Umeno, Kitakyushu, JP;

Hiroyuki Taki, Tokyo, JP;

Pascual Perez, Alboraya, ES;

Assignee:

Imerys Graphite & Carbon Switzerland Ltd., Bodio, CH;

Attorney:

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Primary Examiner:

Daniel H Miller

Int. Cl.
CPC ...
B32B 9/00 (2006.01); C01B 33/18 (2006.01); C01B 32/186 (2017.01); C09C 3/06 (2006.01); H01M 4/48 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01); B82Y 30/00 (2011.01);
U.S. Cl.
CPC ...
C01B 33/18 (2013.01); C01B 32/186 (2017.08); C09C 3/063 (2013.01); H01M 4/48 (2013.01); H01M 10/0525 (2013.01); B82Y 30/00 (2013.01); C01P 2002/60 (2013.01); C01P 2004/52 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); H01M 2004/027 (2013.01); Y10T 428/30 (2015.01);
Abstract

The present disclosure relates to novel particulate composite materials comprising a graphitic core particle associated with SiOx nanoparticles (0.2≤X≤1.8), and coated by a layer of non-graphitic carbon, e.g., pyrolytic carbon deposited by chemical vapor deposition (CVD). Also included are processes for making such particles as well as uses and downstream products for the novel composite material, in particular as an active material in negative electrodes in Li-ion batteries.

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