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。


    Access

    Download


    Export, share and cite



    Title :

    Equalization method and equalization device for battery module


    Additional title:

    电池模组的均衡方法和均衡装置


    Contributors:
    SUN JIANQING (author) / XU GUO'EN (author) / XU JILEI (author) / CHEN BIN (author)

    Publication date :

    2021-07-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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



    Battery equalization method and battery equalization device

    ZHANG HAIYING / LI WENPU / ZHANG DENGLIANG | European Patent Office | 2020

    Free access

    Battery equalization method and equalization device

    FENG LIHONG / SHEN XIANGDONG / SHIM SUNG-WOO et al. | European Patent Office | 2023

    Free access

    Intelligent battery equalization module

    MAO GUANGFU | European Patent Office | 2020

    Free access

    Battery equalization method and battery equalization system

    WANG WEILIN / LI HONG / WANG XIAOBIN | European Patent Office | 2023

    Free access

    Mixing battery pack equalization method, equalization system, equalization device and vehicle thereof

    LIU YONGSHAN / LIU YIXIN / ZHANG DI et al. | European Patent Office | 2023

    Free access