The invention relates to the field of vehicles, in particular to a lithium battery current-limiting charging method and device, a vehicle and a storage medium. The method comprises the following steps: acquiring the current cell temperature, the current internal voltage, the current external charging voltage and the current charging current of the lithium battery; based on the current cell temperature, the current internal voltage, the current external charging voltage and the current charging current, judging whether the lithium battery meets a preset current-limiting charging condition or not; and if the lithium battery meets the preset current-limiting charging condition, carrying out current-limiting charging on the lithium battery based on a preset current-limiting charging strategy. Therefore, according to the current-limiting charging method, the lithium battery can be charged by limiting the charging current when the charging voltage of the lithium battery is relatively high or the charging current is relatively large, lithium separation or over-temperature of the lithium battery can be prevented, and meanwhile, an adaptive current-limiting charging control strategy of the lithium battery is designed aiming at the problem of long charging time caused by current-limiting charging; and therefore, the lithium battery still has a relatively high charging rate.

    本申请涉及车辆领域,特别涉及一种锂电池限流充电方法、装置、车辆及存储介质。方法包括:获取锂电池的当前电芯温度、当前内部电压、当前外部充电电压和当前充电电流;基于当前电芯温度、当前内部电压、当前外部充电电压和当前充电电流,判断锂电池是否满足预设限流充电条件;若锂电池满足预设限流充电条件,则基于预设的限流充电策略为锂电池进行限流充电。由此,该限流充电方法能够在锂电池充电电压较高或充电电流较大时,通过限制充电电流给锂电池充电,可以防止锂电池析锂或过温,同时针对限流充电导致充电时间长的问题,设计适配的锂电池的限流充电控制策略,从而使得锂电池仍有较好的充电速率。


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    Title :

    Lithium battery current-limiting charging method and device, vehicle and storage medium


    Additional title:

    锂电池限流充电方法、装置、车辆及存储介质


    Contributors:
    JIA FENGTAO (author) / GU JIAYING (author) / LIU ZIHAO (author) / SONG JIANTAO (author)

    Publication date :

    2024-05-03


    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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