Method and device for screening potential abnormal battery, battery and vehicle

The invention provides a method and device for screening a potential abnormal battery, a battery and a vehicle, and the method comprises the steps: determining the performance parameters of a to-be-tested battery, the performance parameters including the battery capacity Cn, the self-discharge rate delta Vn of the battery when the battery is in short circuit with a super-large resistor REXT, the discharge DC internal resistance DCRn1 of the battery, the charge DC internal resistance DCRn2 of the battery, and the AC internal resistance ACRn of the battery; and judging whether the battery is qualified or not according to the determined performance parameters. According to the method and device for screening the potential abnormal battery, the battery and the vehicle provided by the invention, the problem of missing screening can be avoided, and the risk of the battery at the application end is reduced. 本发明提供了一种筛选潜在异常电池的方法、装置、电池及车辆，包括步骤：确定待测试电池的性能参数，其中，所述性能参数包括：电池容量Cn，电池在短接超大电阻REXT时的自放电率ΔVn、电池的放电直流内阻DCRn1、电池的充电直