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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 11637280 B1

PDFFull Text
Date of Patent:
Apr. 25, 2023

Filed:

Mar. 30, 2018

Precharged negative electrode material for secondary battery

Applicant:

Kratos Llc, Irmo, SC (US);

Inventors:

Timothy D. Newbound, Chelsea, MI (US);

Richard Owen Crowther, Redford, MI (US);

Reza Kavian, Chelsea, MI (US);

Bruce Andrew Kraay, Irmo, SC (US);

Jeff A. Norris, Columbia, SC (US);

Assignee:

Kratos LLC, Irmo, SC (US);

Attorney:

Michael Best & Friedrich LLP

Primary Examiner:

Yoshitoshi Takeuchi

Int. Cl.
CPC ...
H01M 4/131 (2010.01); H01M 4/134 (2010.01); H01M 4/136 (2010.01); H01M 4/1395 (2010.01); H01M 4/36 (2006.01); H01M 4/133 (2010.01); H01M 4/1393 (2010.01); H01M 4/38 (2006.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/1393 (2013.01); H01M 4/1395 (2013.01); H01M 4/364 (2013.01); H01M 4/386 (2013.01); H01M 4/387 (2013.01); H01M 4/587 (2013.01); H01M 4/622 (2013.01); H01M 4/661 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01);
Abstract

Provided are methods of producing a negative electrode including comminuting Li-Group IVA alloy particles in a solvent to a desired particle size distribution range, exposing surfaces of the Li-Group IVA alloy particles to a monomer or polymer surface modifier present during the comminution process, the surface modifier forming a continuous coating on an exposed surface of the Li-Group IVA alloy particles, removing the solvent, and adding the surface-modified Li-Group IVA alloy particles to a negative electrode material by a coating process.

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