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.:
Date of Patent:
Sep. 20, 2022
Filed:
Jun. 11, 2019
Applicant:
Umicore, Brussels, BE;
Inventors:
Nicolas Marx, Olen, BE;
Stijn Put, Olen, BE;
Jean-Sébastien Bridel, Olen, BE;
Boaz Moeremans, Olen, BE;
Assignee:
UMICORE, Brussels, BE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/38 (2006.01); C01B 33/02 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/386 (2013.01); C01B 33/02 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/61 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract
An active material powder for use in a negative electrode of a battery, wherein the active material powder comprises active material particles, wherein the active material particles comprise silicon-based particles, wherein when said active material powder is crossed by a plane, then at least 65% of the discrete cross-sections of the silicon-based particles included in that plane, satisfy optimized conditions of shape and size, allowing the battery containing such an active material powder to achieve a superior cycle life and a production method of such an active material powder.