The invention relates to a battery charging method, a battery pack, a charging management device and system, and a vehicle. The method comprises the following steps: when a charging instruction is detected, charging a first type of battery cells; when it is detected that the temperature of the second type of battery cells reaches a preset temperature, starting to charge the second type of battery cells; wherein the maximum charge-discharge rate of the first type of battery cells is greater than the maximum charge-discharge rate of the second type of battery cells, the energy density of the first type of battery cells is smaller than the energy density of the second type of battery cells, and at least part of the second type of battery cells are adjacent to the first type of battery cells. According to the scheme provided by the invention, the charging sequence of the different types of battery cells is controlled through the charging management equipment, so that the heat of the first type of battery cells of the fast charging type is absorbed by the second type of battery cells of the high-capacity type, thereby avoiding a thermal runaway accident caused by too high temperature rise of the battery cells, and meanwhile, the different types of battery cells are adopted, so that the thermal runaway accident is avoided. And the battery pack has high capacity and fast charging performance.

    本申请涉及一种电池充电方法、电池包、充电管理设备及系统、车辆。该方法包括:当检测到充电指令时,对第一类电芯进行充电;当检测到第二类电芯的温度达到预设温度时,开始对第二类电芯进行充电;其中,第一类电芯的最大充放电倍率大于第二类电芯的最大充放电倍率,第一类电芯的能量密度小于第二类电芯的能量密度,至少部分第二类电芯与第一类电芯相邻设置。本申请提供的方案,通过充电管理设备控制不同类型的电芯的充电顺序,使快充类型的第一类电芯的热量被高容量类型的第二类电芯所吸收,从而避免发生电芯温升过高而引发的热失控事故,同时采用不同类型的电芯,可以使电池包兼具高容量和快充性能。


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    Title :

    Battery charging method, battery pack, charging management equipment and system and vehicle


    Additional title:

    电池充电方法、电池包、充电管理设备及系统、车辆


    Contributors:
    LIN ZANRUI (author) / ZHONG LIANG (author) / LIU YUAN (author) / MA RUJIA (author)

    Publication date :

    2022-12-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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