To provide a deterioration estimation method and a deterioration estimation device or a deterioration estimation system of nonaqueous lithium type power storage component where active charcoal and a lithium transition metal oxide having olivine structure is blended to the positive electrode.SOLUTION: A discharge curve taking the discharge capacity on the abscissa axis and the voltage on the ordinate, when a nonaqueous lithium type power storage component containing, as a positive electrode active material, active charcoal and a lithium transition metal oxide having spinel structure capable of occluding and discharging lithium ion is subjected to constant current discharge is divided into a first region, a second region and a third region, in order from the high voltage side, and a database group indicating the capacity deterioration coefficients of respective regions as the parameters of voltage and temperature is created, voltage and temperature of the power storage component in operation are measured, capacity deterioration coefficients corresponding to the measured voltage and temperature are calculated from the database group, and then the capacity deterioration coefficients of the power storage component are estimated by totalizing the capacity deterioration coefficients of the first, second and third regions, while furthermore the capacity deterioration coefficients of the power storage component are estimated by integrating the estimation capacity of each time.SELECTED DRAWING: Figure 1


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    Title :

    非水系リチウム型蓄電素子の容量劣化率推定方法および容量劣化率推定装置、システム


    Publication date :

    2022-07-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01G Kondensatoren , CAPACITORS / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung