A lithium ion secondary battery is provided with a positive electrode, a negative electrode containing an active material, and an electrolytic solution, wherein the active material includes a core portion capable of occluding and releasing lithium ions, an amorphous or low-crystalline coating portion disposed on at least a part of the surface of the core portion, and a fibrous carbon portion disposed on at least a part of the surface of the coating portion, and the coating portion contains Si and O as constituent elements, while the atomic ratio y (O/Si) of O relative to Si satisfies 0.5≰y≰1.8.


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    Titel :

    Lithium ion secondary battery, lithium ion secondary battery negative electrode, battery pack, electric vehicle, electricity storage system, power tool, and electronic apparatus


    Beteiligte:
    HIROSE TAKAKAZU (Autor:in) / FUJINAGA TAKASHI (Autor:in) / KOIZUMI ISAO (Autor:in) / SHIMOI NORIHIRO (Autor:in) / KAWASE KENICHI (Autor:in)

    Erscheinungsdatum :

    2015-07-14


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    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 / C01G Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle , COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F