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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 11735706 B1

PDFFull Text
Date of Patent:
Aug. 22, 2023

Filed:

Nov. 23, 2020

Methods of making battery electrodes with tubes, optimized solvent to powder weight ratios, and specified calendar roller diameters

Applicant:

Pacesetter, Inc., Sunnyvale, CA (US);

Inventors:

Xiaofei Jiang, Clemson, SC (US);

Russell Bruch, Seneca, SC (US);

Joseph Beauvais, Liberty, SC (US);

Assignee:

Pacesetter, Inc., Sunnyvale, CA (US);

Attorney:

Lerner David LLP

Primary Examiner:

Francisco W Tschen

Assistant Examiner:

Guy F Mongelli

Int. Cl.
CPC ...
H01M 4/04 (2006.01); H01M 4/08 (2006.01); H01M 4/48 (2010.01); H01M 4/62 (2006.01); B29C 43/24 (2006.01); B29B 7/00 (2006.01); H01M 4/54 (2006.01); B29L 31/34 (2006.01); B29C 43/52 (2006.01); H01M 4/02 (2006.01); B29K 27/18 (2006.01); B29K 105/16 (2006.01); B29K 507/04 (2006.01); B29K 509/00 (2006.01);
U.S. Cl.
CPC ...
H01M 4/0435 (2013.01); B29B 7/002 (2013.01); B29C 43/24 (2013.01); H01M 4/0471 (2013.01); H01M 4/08 (2013.01); H01M 4/48 (2013.01); H01M 4/54 (2013.01); H01M 4/623 (2013.01); H01M 4/625 (2013.01); B29C 43/52 (2013.01); B29C 2793/0027 (2013.01); B29K 2027/18 (2013.01); B29K 2105/16 (2013.01); B29K 2507/04 (2013.01); B29K 2509/00 (2013.01); B29K 2995/0005 (2013.01); B29L 2031/3468 (2013.01); B29L 2031/3475 (2013.01); H01M 2004/028 (2013.01); H01M 2220/30 (2013.01);
Abstract

A method includes mixing a solvent with a dry cathode mixture to form a slurry. The dry cathode mixture includes a cathode active material, a conductive diluent, and a polymeric binder. The method further includes removing the solvent from the slurry to form a composition and calendering, in a first calendering step, the composition to form a sheet. The calendering the composition includes passing the composition between calender rollers.

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