Disclosed are a method and a device for evaluating the lifespan of a battery of an electric vehicle. The method comprises the steps of: by the device for evaluating the lifespan of a battery, obtaining charging history information comprising information about changes in charging parameters in respective charging cycles according to an accumulation of charging cycles performed for the battery during a period of use of the electric vehicle; by the device for evaluating the lifespan of a battery, performing a charge/discharge test at a predetermined C-rate on the battery collected from the electric vehicle; outputting first lifespan information of the battery on the basis of a rate of change of the charging parameters in the charge/discharge test at the predetermined C-rate; and by the device for evaluating the lifespan of a battery, outputting second lifespan information obtained by correcting the first lifespan information of the battery on the basis of the charging history information.

    Un procédé et un dispositif d'évaluation de la durée de vie d'une batterie d'un véhicule électrique sont divulgués. Le procédé comprend les étapes suivantes consistant : par le dispositif d'évaluation de la durée de vie d'une batterie, à obtenir des informations d'historique de charge comprenant des informations concernant des changements de paramètres de charge dans des cycles de charge respectifs en fonction d'une accumulation de cycles de charge effectués pour la batterie pendant une période d'utilisation du véhicule électrique ; par le dispositif d'évaluation de la durée de vie d'une batterie, à effectuer un test de charge/décharge à un taux C prédéterminé sur la batterie collectée à partir du véhicule électrique ; à délivrer en sortie des premières informations de durée de vie de la batterie sur la base d'un taux de changement des paramètres de charge dans le test de charge/décharge au taux C prédéterminé ; et par le dispositif d'évaluation de la durée de vie d'une batterie, à délivrer en sortie des secondes informations de durée de vie obtenues par correction des premières informations de durée de vie de la batterie sur la base des informations d'historique de charge.

    전기차의 배터리의 수명 평가 방법 및 장치가 개시된다. 방법 상기 배터리 수명 평가 장치가, 상기 전기차의 사용 기간동안 상기 배터리에 대해 수행된 충전 사이클의 누적에 따라 각각의 충전 사이클에서 충전 파라미터의 변화에 대한 정보를 포함하는 충전 히스토리 정보를 획득하는 단계; 상기 배터리 수명 평가 장치가, 상기 전기차로부터 수거된 배터리를 소정의 씨레이트(C-rate)로 충방전 테스트를 수행하는 단계; 상기 소정의 씨레이트로 이루어지는 충방전 테스트에서 충전 파라미터의 변화율에 기반하여 상기 배터리의 제1 수명 정보를 출력하는 단계; 상기 배터리 수명 평가 장치가, 상기 충전 히스토리 정보에 기반하여 상기 배터리의 제1 수명 정보를 보정한 제2 수명 정보를 출력하는 단계를 포함한다.


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    Title :

    METHOD AND DEVICE FOR EVALUATING BATTERY LIFESPAN


    Additional title:

    PROCÉDÉ ET DISPOSITIF D'ÉVALUATION DE DURÉE DE VIE DE BATTERIE
    배터리 수명 평가 방법 및 장치


    Contributors:

    Publication date :

    2023-09-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES



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