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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 12352819 B1

PDFFull Text
Date of Patent:
Jul. 08, 2025

Filed:

Sep. 30, 2020

Method for determining the state of health of a lithium-ion battery

Applicant:

Socomec, Benfeld, FR;

Inventor:

Bramy Pilipili Matadi, Chambery, FR;

Assignee:

SOCOMEC, Benfeld, FR;

Attorney:

Studebaker Brackett PLLC

Primary Examiner:

Lisa M Caputo

Assistant Examiner:

Christian T Bryant

Int. Cl.
CPC ...
G01R 31/392 (2019.01); G01R 31/367 (2019.01); G01R 31/3835 (2019.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/583 (2010.01); H01M 10/0525 (2010.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H02J 7/00 (2006.01); G01R 31/36 (2020.01); H01M 4/02 (2006.01); H01M 4/58 (2010.01);
U.S. Cl.
CPC ...
G01R 31/392 (2019.01); G01R 31/367 (2019.01); G01R 31/3835 (2019.01); H01M 10/0525 (2013.01); H01M 10/44 (2013.01); H01M 10/48 (2013.01); H02J 7/005 (2020.01); H02J 7/007 (2013.01); G01R 31/3648 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/5825 (2013.01); H01M 4/583 (2013.01); Y02E 60/10 (2013.01);
Abstract

A method for determining the state of health (SOH) of a lithium-ion battery includes: a first step (E) of determining a function (f) of the incremental capacity of the battery, a second step (E) of identifying peaks (P, P, P) of the function (f) determined in the first step (E), a third step (E) of determining voltages (U, U, U) across the terminals of the battery () for which said peaks (P, P, P) are obtained, a fourth step (E) of determining the amplitudes of said peaks (P, P, P), a sixth step (E) of determining the state of health (SOH) of the battery () on the basis of a degradation mode of the battery and on the basis of the amplitudes determined in the fourth step (E).

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