The invention relates to the technical field of battery management, in particular to a battery charging method, a management unit, a battery and a vehicle. The method comprises the following steps: determining a current charging stage of the lithium ion battery, wherein the current charging stage is one of at least one charging stage pre-divided based on the charging internal resistance of the lithium ion battery in the charging process; and charging the lithium ion battery according to the preset charging index corresponding to the current charging stage until the stage cut-off charging index corresponding to the current charging stage is reached. Polarization accumulation of the lithium ion battery in the charging process can be relieved, the lithium separation risk is reduced, the cycle life of the lithium ion battery is prolonged, and the battery safety is improved.

    本申请涉及电池管理技术领域,具体涉及一种电池充电方法、管理单元、电池及车辆。方法包括:确定锂离子电池的当前充电阶段,当前充电阶段为基于锂离子电池在充电过程中的充电内阻预先划分至少一个充电阶段中的一个;按照当前充电阶段对应的预设充电指标对锂离子电池充电,直至达到当前充电阶段对应的阶段截止充电指标。本申请能够缓解锂离子电池在充电过程中的极化累积,降低析锂风险,提高锂离子电池的循环寿命和电池安全性。


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    Title :

    Battery charging method, management unit, battery and vehicle


    Additional title:

    电池充电方法、管理单元、电池及车辆


    Contributors:
    XIE TAO (author) / GAO HUAWEN (author) / JIA YONGQIANG (author) / BIAN YING (author)

    Publication date :

    2024-08-27


    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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