A PC executes a control process including the steps of: calculating an internal pressure increase amount P; calculating an internal pressure fluctuation amount ΔP; calculating a deterioration evaluation value D1; calculating a deterioration evaluation value D2; determining that a battery can be shipped as a secondhand battery when D1+D2 is equal to or smaller than a threshold value A; and determining that the battery cannot be shipped as a secondhand battery when D1+D2 is larger than the threshold value A.


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    Title :

    Deterioration determining device for battery


    Contributors:

    Publication date :

    2017-04-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / 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