The invention relates to a fireproof heat-preservation battery pack box body, a preparation method and application thereof, and mainly solves the problems that in the prior art, a battery pack box body is poor in heat preservation and fireproof performance, and the appearance of a polyurethane foam spraying layer is uneven, so that the assembly of a battery module is influenced. The fireproof and heat-insulating battery pack box body comprises an upper cover (7), a lower shell (1) and a fireproof and heat-insulating layer (9) at least arranged on the bottom wall of the inner side of the lower shell (1), and the fireproof and heat-insulating layer (9) sequentially comprises a bonding layer (2), a first polyurea composite layer (3), a polyurethane foam layer (4) and a second polyurea composite layer (5) from outside to inside; the first polyurea composite layer (3) and the second polyurea composite layer (5) are polyurea composite layers containing aerogel particles, the problem is well solved, and the preparation method can be used for industrial production of new energy automobile battery pack boxes.

    本发明涉及一种防火保温的电池包箱体、制备方法及其用途,主要解决现有技术中电池包箱体保温差、防火差,聚氨酯泡沫喷涂层外观不平整影响电池模组装配的问题。本发明通过采用一种防火保温的电池包箱体,包括上盖(7)、下壳体(1)和至少设于下壳体(1)内侧底壁的防火保温层(9),该防火保温层(9)自外而内依次包括粘结层(2)、第一聚脲复合层(3)、聚氨酯泡沫层(4)和第二聚脲复合层(5);第一聚脲复合层(3)和第二聚脲复合层(5)为含有气凝胶颗粒的聚脲复合层及其制备方法的技术方案,较好地解决了该问题,可用于新能源汽车电池包箱体的工业生产中。


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    Title :

    Fireproof and heat-insulating battery pack box body as well as preparation method and application thereof


    Additional title:

    防火保温的电池包箱体、制备方法及其用途


    Contributors:
    LI HAIFENG (author) / DONG JIAXIN (author) / SONG YUFEI (author) / JIANG YUHAO (author)

    Publication date :

    2024-11-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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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