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:
Nov. 18, 2025
Filed:
Mar. 28, 2022
Applicant:
Iowa State University Research Foundation, Inc., Ames, IA (US);
Inventors:
Abhishek Sarkar, Ames, IA (US);
Cajetan Ikenna Nlebedim, Ames, IA (US);
Pranav Shrotiya, Ames, IA (US);
Assignee:
Iowa State University Research Foundation, Inc., Ames, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/44 (2006.01); H01M 4/133 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/44 (2013.01); H01M 4/133 (2013.01); H01M 2004/027 (2013.01); H01M 2220/20 (2013.01);
Abstract
Fast charging of a lithium-ion battery at 4C rate or 5C rate or more is improved by applying an external magnetic field relative to the battery to establish magnetic field lines that extend in a direction of primary movement of lithium ions toward the graphite anode during fast charging. Deleterious degradation of the graphite anode from repeated fast charging can be reduced or eliminated by practice of the invention.