In order to overcome the problem of the corrosion resistance of existing battery pack bottom protection plates being insufficient due to a surface PVC layer peeling under impact, the present application provides a battery protection bottom plate, comprising a protection layer, a metal plate and a fiber-reinforced resin layer. The metal plate is located between the protection layer and the fiber-reinforced resin layer, and the metal plate and the fiber-reinforced resin layer satisfy the condition in formula I. 0.4≤d1d2*e−ε0∗σ2σ0∗ε2+0.5≤2.0In addition, further disclosed in the present application are a battery pack composite protection structure comprising the battery protection bottom plate, and a vehicle.


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    Title :

    BATTERY PROTECTION BOTTOM PLATE, BATTERY PACK COMPOSITE PROTECTION STRUCTURE, AND VEHICLE


    Additional title:

    BATTERIESCHUTZGRUNDPLATTE, BATTERIEPACKVERBUNDSCHUTZSTRUKTUR UND FAHRZEUG
    PLAQUE INFÉRIEURE DE PROTECTION DE BATTERIE, STRUCTURE DE PROTECTION COMPOSITE DE BLOC-BATTERIE ET VÉHICULE


    Contributors:
    TAN ZHIJIA (author) / WAN LONG (author) / PENG QINGBO (author) / WANG RAN (author) / SUN ZENAN (author)

    Publication date :

    2025-06-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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



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