A battery box, suitable for a skateboard chassis of an electric vehicle (EV), comprises a box (101) and cover (103), the box comprising four side walls vertically connected with a bottom plate. The bottom plate and each side wall have the same multi-layer composite structure comprising: a first, protective aluminium plate 201, relatively located towards an inner side of the box; a second, protective aluminium plate 206, relatively located towards an outer side of the box; and an energy-absorbing buffer sandwich 200 between the first and second protective plates. The buffer sandwich comprises: an octahedral porous core structure inner layer 202, formed by an array of octahedral elements (202A); a spiral vortex structure outer layer 204, formed by an array of spiral vortex elements (204A); and an aluminium partition board 203 arranged between the two structure layers. An outer layer of the second protective plate is compounded with a carbon fibre layer 206. The box cover includes an aluminium plate 802 with an outer carbon fibre resin material layer 801. Two outer sides of the box are fixed with a side anti-collision device (102) comprising a rectangular hollow tube body filled with a honeycomb core body, formed by a close array of honeycomb cells (102A).


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    Title :

    Battery box, skateboard chassis and electric vehicle


    Contributors:
    LIANG SU (author) / GANG GONG (author) / SHENGYOU HUANG (author) / SHAOYANG HONG (author) / BIN LUO (author) / HONGYI CAI (author) / JINMIN ZHANG (author)

    Publication date :

    2023-12-27


    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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