The invention discloses a battery cell matching method and device of a battery pack, a storage medium and a computer program, relates to the technical field of batteries, and discloses the battery cell matching method of the battery pack, which comprises the following steps: acquiring a fitting formula of normal temperature-liquid cooling discharge tail end pressure difference of the battery pack; acquiring a normal-temperature discharge tail end voltage difference of the target battery pack; according to a fitting formula of the normal temperature discharge tail end pressure difference and the normal temperature-liquid cooling discharge tail end pressure difference, obtaining the liquid cooling discharge tail end pressure difference of the target battery pack; and performing cell grouping according to the liquid cooling discharge tail end voltage difference of the target battery pack. And establishing a relation between the discharge end pressure difference of the battery pack under the normal temperature condition and the discharge end pressure difference under the liquid cooling condition through a fitting formula, and substituting the relation into the normal temperature discharge end pressure difference to obtain the liquid cooling discharge end pressure difference. And if the liquid cooling discharge tail end voltage difference is qualified, battery cell matching is carried out in the battery cell matching mode of the target battery pack, liquid cooling condition detection is not needed, the matching scheme is optimized, and the battery cell consistency is improved.

    本申请公开了一种电池包的电芯配组方法、设备、存储介质以及计算机程序,涉及电池技术领域,公开了电池包的电芯配组方法,包括:获取电池包的常温‑液冷放电末端压差的拟合公式;获取目标电池包的常温放电末端压差;根据常温放电末端压差和常温‑液冷放电末端压差的拟合公式获取目标电池包的液冷放电末端压差;根据目标电池包的液冷放电末端压差进行电芯配组。通过拟合公式将电池包的常温条件下的放电末端压差与液冷条件下的放电末端压差建立联系,代入常温放电末端压差求得液冷放电末端压差。若液冷放电末端压差合格,则以目标电池包的电芯配组模式进行电芯配组,无需液冷条件检测,优化了配组方案,提升了电芯一致性。


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    Title :

    Battery cell grouping method and equipment of battery pack, storage medium and computer program


    Additional title:

    电池包的电芯配组方法、设备、存储介质以及计算机程序


    Contributors:
    SUN XIAOTING (author) / WU SHENGJIE (author)

    Publication date :

    2024-09-24


    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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