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.

Date of Patent:
Oct. 15, 2019

Filed:

May. 13, 2016
Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventors:

Olivier Cois, Kernen, DE;

Thomas Dufaux, Stuttgart, DE;

Andre Boehm, Marbach am Neckar, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/00 (2006.01); G01R 31/367 (2019.01); G01R 31/389 (2019.01); G01R 31/392 (2019.01);
U.S. Cl.
CPC ...
G01R 31/367 (2019.01); G01R 31/389 (2019.01); G01R 31/392 (2019.01);
Abstract

A method determines a potential of an anode and/or a potential of a cathode in a battery cell. The method measures a current flowing through the battery cell, determines a charge transfer resistance of the battery cell, ascertains a charge transfer resistance of the anode and a charge transfer resistance of the cathode, ascertains a depth of discharge, ascertains an anode residual voltage and a cathode residual voltage from the depth of discharge from an idle voltage, ascertains an anode excess potential from the charge transfer resistance of the anode and the current and ascertains a cathode excess potential from the charge transfer resistance of the cathode and the current. The method ascertains the potential of the anode from the anode residual voltage and the anode excess potential and ascertains the potential of the cathode from the cathode residual potential and the cathode excess potential.


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