Method and device with battery short circuit detection

A method of detecting a short circuit in a battery, the method comprising:

• triggering a rest phase of the battery;
• determining a first time constant related to a rest voltage of the battery when the battery is in a rest phase by comparing between a voltage of the battery and a maximum voltage in an evaluation time period of the rest phase;
• generating a first short-resistance value based on a result of comparing the first time constant with a second time constant related to a voltage of the battery;
• and
• generating a determination indicating a short circuit in the battery based on a result of comparing the first short-resistance value and a second short-resistance value when the first short-resistance value is less than the second short-resistance value;
• and
• controlling protection of the battery based on the determination indicating whether the short circuit has occurred in the battery,
• wherein the first time constant and the second time constant are determined with reference to either a temperature range or a charging range of the battery.

A method comprising:

• triggering a rest phase of a battery;
• generating a short circuit estimation of the battery during the rest phase of the battery;
• generating, during the rest phase after a charging or discharging of the battery has ended and that the rest phase of the battery has been triggered, voltage information;
• generating, based on the voltage information and range information of the battery comprising a temperature range of the battery or a charging range of the battery, a determination indicating whether a short circuit condition exists in the battery;
• and
• controlling protection of the battery based on the determination indicating whether the short circuit has occurred in the battery,
• wherein the voltage information comprises comparing between a maximum voltage value and a voltage value, both measured during the rest phase.