The invention relates to an equalization method and an equalization device for a battery module. The equalization method for the battery module comprises the following steps: carrying out charging operation or discharging operation on a battery cell; detecting whether the temperature of the battery cell exceeds a preset temperature value, and if the temperature of the battery cell exceeds the preset temperature value, stopping charging or discharging the battery cell; detecting whether the voltage of the battery cell reaches a preset voltage value, and if the voltage of the battery cell reaches the preset voltage value, stopping charging operation or discharging operation on the battery cell to complete equalization of the battery cell; and repeating the above steps to carry out equalization operation on the battery cells in sequence until all the battery cells in the battery module are equalized. According to the method, charging operation or discharging operation can be accurately carried out on each battery cell in the battery module, and comprehensive equalization of the battery cells in the battery module is realized; and meanwhile, the method can also be used for monitoring the temperature of the battery cells, so that safety accidents caused by overheating of the battery in the equalization process are avoided, and the safety is improved.

    本发明涉及一种电池模组的均衡方法和均衡装置。该电池模组的均衡方法包括:对一电芯进行充电操作或放电操作;检测电芯的温度是否超过预设温度值,如果电芯的温度超过预设温度值,则停止对电芯进行充电操作或放电操作;检测电芯的电压是否达到预设电压值,若达到预设电压值,则停止对电芯进行充电操作或放电操作,完成对电芯的均衡;重复前述步骤依次对各电芯进行均衡操作,直至电池模组中所有电芯均完成均衡。上述方法,可以精准地电池模组中的每一个电芯进行充电操作或放电操作,实现了对电池模组内各电芯的全面均衡;同时,上述方法还可以对电芯温度进行监测,保证了均衡过程中不会出现电池过热而导致的安全事故,提高了安全性。


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    Titel :

    Equalization method and equalization device for battery module


    Weitere Titelangaben:

    电池模组的均衡方法和均衡装置


    Beteiligte:
    SUN JIANQING (Autor:in) / XU GUO'EN (Autor:in) / XU JILEI (Autor:in) / CHEN BIN (Autor:in)

    Erscheinungsdatum :

    2021-07-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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