The invention relates to a lithium iron phosphate battery pack and a voltage balancing method thereof, a vehicle and a storage medium. The method comprises the following steps: setting charging of a power supply in the lithium iron phosphate battery pack to be divided into first-stage charging and second-stage charging; only the first charging control unit is started to charge the first battery pack and the second battery pack at the same time during first-stage charging; and when the first battery pack enters the fully charged state, entering a second stage of charging, closing the first charging control unit and starting the second charging control unit to continuously charge the second battery pack until the second battery pack enters the fully charged state. By the adoption of the method, charging of the power supply in the lithium iron phosphate battery pack can be divided into the first-stage charging and the second-stage charging, the electric quantity balance of the battery cells is effectively guaranteed in a sectional charging mode, the service life and reliability of the batteries are guaranteed, and the power margin of the batteries is increased.

    本申请涉及一种磷酸铁锂电池组及其电压均衡方法、车辆和存储介质。所述方法包括:设置对所述磷酸铁锂电池组中的供电电源充电时,分为第一阶段充电和第二阶段充电;在第一阶段充电时仅启动所述第一充电控制单元对所述第一电池组和所述第二电池组同时充电;当所述第一电池组进入满充电状态时,进入第二阶段充电,关闭所述第一充电控制单元并启动所述第二充电控制单元对所述第二电池组继续充电,直至所述第二电池组进入满充电状态。采用本方法能够对所述磷酸铁锂电池组中的供电电源充电时分为第一阶段充电和第二阶段充电,通过分段式充电的方式有效保证电芯电量均衡,保证电池的使用寿命和可靠性,提升了电池功率余量。


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    Title :

    Lithium iron phosphate battery pack and voltage balancing method thereof, vehicle and storage medium


    Additional title:

    磷酸铁锂电池组及其电压均衡方法、车辆和存储介质


    Contributors:
    PAN WENBIN (author)

    Publication date :

    2022-12-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / 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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