PROBLEM TO BE SOLVED: To provide a capacity recovery method for a lithium ion secondary battery which allows a battery capacity to be appropriately recovered.SOLUTION: A capacity recovery method provided by the present invention includes steps of: charging a lithium ion secondary battery at a current value of 5 C or more until SOC becomes 70% or higher, if a specific charging process which supplies a pulsed current of 20 C or more to the battery for 5 seconds or longer is performed for a predetermined number of times, within 10 minutes after the last specific charging process has been completed; and leaving the charged battery as it is in a dormant state for 10 hours or longer.SELECTED DRAWING: Figure 3

    【課題】電池容量を適切に回復し得るリチウムイオン二次電池の容量回復方法を提供する。【解決手段】本発明により提供される容量回復方法は、リチウムイオン二次電池に対して20C以上のパルス状の電流を5秒間以上供給する特定充電処理が所定回数行われた場合に、最後の特定充電処理が終了してから10分以内に、該電池を5C以上の電流値でSOC70%以上になるまで充電すること、および、充電後の電池を休止状態で10時間以上放置すること、を包含する【選択図】図3


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    Title :

    CAPACITY RECOVERY METHOD FOR LITHIUM ION SECONDARY BATTERY


    Additional title:

    リチウムイオン二次電池の容量回復方法


    Contributors:
    GOTO SATORU (author) / AMANO JUNKO (author)

    Publication date :

    2017-03-02


    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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung




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