Provided is a separator including: a substrate; and a surface layer formed on at least one surface of the substrate, and having a higher porosity than that of the substrate. It is preferable that the surface layer includes: a first layer having convexities and concavities existing as cavities; and a second layer formed between the first layer and the separator, and the second layer has a higher porosity than that of the substrate, and the first layer has a higher porosity than that of the second layer. In this case, it is preferable that the porosity of the substrate is from 25% to 40%, the porosity of the first layer is from 60% to 90%, and the porosity of the second layer is from 40% to 65%.


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    Title :

    SEPARATOR, BATTERY, BATTERY PACK, ELECTRONIC APPARATUS, ELECTRIC VEHICLE, POWER STORAGE DEVICE, AND POWER SYSTEM


    Additional title:

    SEPARATOR, BATTERIE, BATTERIEPACK, ELEKTRONISCHE VORRICHTUNG, ELEKTROFAHRZEUG, ENERGIESPEICHERUNGSVORRICHTUNG UND STROMSYSTEM
    SÉPARATEUR, BATTERIE, BLOC-BATTERIE, APPAREIL ÉLECTRONIQUE, VÉHICULE ÉLECTRIQUE, DISPOSITIF DE STOCKAGE D'ÉNERGIE, ET SYSTÈME D'ALIMENTATION


    Contributors:

    Publication date :

    2019-09-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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