Provided are a battery management device, a battery management method, and a battery pack. The battery management device detects feature points of each of a first differential capacity curve obtained by charging the battery with a first constant current, a second differential capacity curve obtained by discharging the battery with the first constant current, a third differential capacity curve obtained by charging the battery with a second constant current, and a fourth differential capacity curve obtained by discharging the battery with the second constant current. Deterioration information of the battery is determined based on a voltage value of the feature point detected from each differential capacity curve.

    배터리 관리 장치, 배터리 관리 방법 및 배터리 팩이 제공된다. 상기 배터리 관리 장치는, 제1 정전류로 배터리를 충전하여 취득된 제1 미분 용량 커브, 상기 제1 정전류로 상기 배터리를 방전하여 취득된 제2 미분 용량 커브, 제2 정전류로 배터리를 충전하여 취득된 제3 미분 용량 커브 및 상기 제2 정전류로 상기 배터리를 방전하여 취득된 제4 미분 용량 커브 각각의 특징점을 검출하고, 각 미분 용량 커브로부터 검출된 특징점의 전압값을 기초로 상기 배터리의 퇴화 정보를 결정한다.


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    Title :

    BATTERY MANAGEMENT APPARATUS BATTERY MANAGEMENT METHOD BATTERY PACK AND ELECTRIC VEHICLE


    Additional title:

    배터리 관리 장치, 배터리 관리 방법, 배터리 팩 및 전기 차량


    Contributors:
    CHA A MING (author) / BAE YOON JUNG (author)

    Publication date :

    2021-03-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

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




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