METHOD, DEVICE, SYSTEM, AND STORAGE MEDIUM FOR STATE OF CHARGE (SOC) CORRECTION FOR A BATTERY

The present disclosure provides a method (100), a device (600), a system, and a storage medium for state of charge (SOC) correction for a battery. The method (100) includes: determining (S110) a current open-circuit voltage (OCV) measurement value of the battery, and determining whether the current OCV measurement value is within a hysteresis voltage interval; determining (S120), when the current OCV measurement value is within the hysteresis voltage interval, a charging SOC value corresponding to the current OCV measurement value in the charging state and a discharging SOC value corresponding to the current OCV measurement value in the discharging state; and determining (S130), based on a SOC confidence interval determined from the charging SOC value and the discharging SOC value, a SOC correction target value to correct a current SOC value of the battery. The method of the embodiments of the present disclosure may implement SOC correction for the battery having a hysteresis characteristic. As a result, accuracy of estimation of the SOC of the battery can be improved.