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FR3127582B1 - Method for estimating the state of health of an electrochemical element - Google Patents

Method for estimating the state of health of an electrochemical element Download PDF

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Publication number
FR3127582B1
FR3127582B1 FR2110354A FR2110354A FR3127582B1 FR 3127582 B1 FR3127582 B1 FR 3127582B1 FR 2110354 A FR2110354 A FR 2110354A FR 2110354 A FR2110354 A FR 2110354A FR 3127582 B1 FR3127582 B1 FR 3127582B1
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FR
France
Prior art keywords
electrode
health
state
estimating
electrochemical element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR2110354A
Other languages
French (fr)
Other versions
FR3127582A1 (en
Inventor
Ruben Brunetaud
Mbeya Karrick Mergo
Jean-Michel Vinassa
Nathalie Legrand
Sébastien Benjamin
Armande Capitaine
Olivier Briat
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAFT Societe des Accumulateurs Fixes et de Traction SA
Centre National de la Recherche Scientifique CNRS
Universite de Bordeaux
Institut Polytechnique de Bordeaux
Original Assignee
SAFT Societe des Accumulateurs Fixes et de Traction SA
Centre National de la Recherche Scientifique CNRS
Universite de Bordeaux
Institut Polytechnique de Bordeaux
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by SAFT Societe des Accumulateurs Fixes et de Traction SA, Centre National de la Recherche Scientifique CNRS, Universite de Bordeaux, Institut Polytechnique de Bordeaux filed Critical SAFT Societe des Accumulateurs Fixes et de Traction SA
Priority to FR2110354A priority Critical patent/FR3127582B1/en
Publication of FR3127582A1 publication Critical patent/FR3127582A1/en
Application granted granted Critical
Publication of FR3127582B1 publication Critical patent/FR3127582B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/392—Determining battery ageing or deterioration, e.g. state of health

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Secondary Cells (AREA)

Abstract

Procédé d’estimation de l’état de santé d’un élément électrochimique L’invention concerne un procédé d’estimation d’un paramètre relatif à l’état de santé d’un élément électrochimique comprenant au moins une électrode comportant un mélange de matériaux actifs, le procédé comportant : - la détermination de paramètres d’un modèle de vieillissement de l’élément électrochimique donnant la valeur de la tension de l’élément lors d’une charge/décharge et modélisant : - le potentiel de chaque électrode comme une fonction appliquée à la contribution des potentiels de chaque matériau actif que comprend l’électrode, chaque contribution étant la mesure de la tension d’un système de demi-pile formé d’une électrode comportant le matériau actif et d’une contre-électrode, et - chaque mécanisme de dégradation interne de l’élément comme un décalage entre les deux potentiels des électrodes dépendant de paramètres de recalage, et - déduction d’un paramètre relatif à un état de santé de l’élément en fonction des paramètres déterminés. Figure pour l'abrégé : figure 3Method for estimating the state of health of an electrochemical element The invention relates to a method for estimating a parameter relating to the state of health of an electrochemical element comprising at least one electrode comprising a mixture of materials active, the method comprising: - the determination of parameters of an aging model of the electrochemical element giving the value of the voltage of the element during a charge/discharge and modeling: - the potential of each electrode as a function applied to the contribution of the potentials of each active material that the electrode comprises, each contribution being the measurement of the voltage of a half-cell system formed of an electrode comprising the active material and a counter-electrode, and - each internal degradation mechanism of the element such as a shift between the two potentials of the electrodes depending on adjustment parameters, and - deduction of a parameter relating to a state of health of the element according to the determined parameters. Figure for the abstract: figure 3

FR2110354A 2021-09-30 2021-09-30 Method for estimating the state of health of an electrochemical element Active FR3127582B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2110354A FR3127582B1 (en) 2021-09-30 2021-09-30 Method for estimating the state of health of an electrochemical element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2110354 2021-09-30
FR2110354A FR3127582B1 (en) 2021-09-30 2021-09-30 Method for estimating the state of health of an electrochemical element

Publications (2)

Publication Number Publication Date
FR3127582A1 FR3127582A1 (en) 2023-03-31
FR3127582B1 true FR3127582B1 (en) 2023-09-29

Family

ID=80218517

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2110354A Active FR3127582B1 (en) 2021-09-30 2021-09-30 Method for estimating the state of health of an electrochemical element

Country Status (1)

Country Link
FR (1) FR3127582B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9244132B2 (en) * 2011-09-12 2016-01-26 Eaglepicher Technologies, Llc Systems and methods for determining battery state-of-health
FR3011393B1 (en) * 2013-10-01 2017-02-10 Centre Nat Rech Scient METHOD AND APPARATUS FOR EVALUATING THE HEALTH CONDITION OF A LITHIUM BATTERY
FR3015047B1 (en) 2013-12-12 2016-12-23 Commissariat Energie Atomique METHOD FOR ESTIMATING THE HEALTH CONDITION OF A BATTERY
FR3087392B1 (en) * 2018-10-23 2020-10-23 Psa Automobiles Sa PROCESS FOR DETERMINING THE STATE OF CHARGE AND STATE OF AGING OF AN ELECTROCHEMICAL BATTERY AS A FUNCTION OF AN OPEN CIRCUIT VOLTAGE MAPPING
FR3090117B1 (en) * 2018-12-17 2021-03-19 Accumulateurs Fixes ESTIMATE OF SOH AND ESTIMATE OF SOC OF AN ELECTROCHEMICAL ELEMENT

Also Published As

Publication number Publication date
FR3127582A1 (en) 2023-03-31

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