A method and apparatus for detecting lithium plating in a lithium battery are provided. This application relates to the field of battery technologies, and may be applied to a new energy vehicle, an electric vehicle, an intelligent vehicle, and a connected vehicle, to improve reliability of lithium plating diagnosis. The method includes: determining, based on a state of health SOH of a lithium battery, a temperature of the lithium battery, and a correspondence between the SOH of the lithium battery and the temperature of the lithium battery and a target parameter, a target parameter corresponding to the lithium battery (S301); substituting the target parameter corresponding to the lithium battery into a preset lithium plating estimation model, to obtain a lithium plating estimation model of the lithium battery (S302); entering a charge current of the lithium battery, a voltage of the lithium battery, the temperature of the lithium battery, and the SOH of the lithium battery into the lithium plating estimation model of the lithium battery, to obtain a real-time potential value of a negative electrode of the lithium battery (S303); and determining that lithium plating occurs in the lithium battery if the real-time potential value of the negative electrode of the lithium battery is less than zero (S304).


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    Title :

    LITHIUM PLATING DETECTION METHOD AND APPARATUS FOR LITHIUM BATTERY


    Additional title:

    VERFAHREN UND VORRICHTUNG ZUR ERKENNUNG VON LITHIUMPLATTIERUNG FÜR EINE LITHIUMBATTERIE
    PROCÉDÉ ET APPAREIL DE DÉTECTION DE PLACAGE DE LITHIUM POUR BATTERIE AU LITHIUM


    Contributors:
    YUAN SHIFEI (author) / LIU BINGXIAO (author) / YANG RUI (author) / WU ZHIWEI (author)

    Publication date :

    2024-10-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY



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