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:
Aug. 06, 2024
Filed:
Sep. 24, 2020
Applicant:
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Inventors:
Stefan Roemersperger, Munich, DE;
Jan Philipp Schmidt, Holzmaden, DE;
Tobias Thiem, Munich, DE;
Christopher Wagner, Munich, DE;
Assignee:
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/367 (2019.01); G01R 31/3842 (2019.01); G01R 31/392 (2019.01); G01R 31/396 (2019.01);
U.S. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/367 (2019.01); G01R 31/3842 (2019.01); G01R 31/392 (2019.01); G01R 31/396 (2019.01);
Abstract
A method for determining the parameters of an equivalent circuit for representation of the impedance of a lithium ion cell is provided. The equivalent circuit includes at least one RC element having an ohmic resistor R, a capacitor C, and a series resistor Rs. The series resistor Rs is determined by an impedance measurement.