| 摘要 |
The present invention relates to a device and method for estimating the state of a battery and, more particularly, to a device characterized by including: a first SOC estimating unit for estimating a first state of charge of a battery on the basis of the open-circuit voltage and temperature of the battery; a first SOH estimating unit for estimating a first state of age of the battery on the basis of the first SOC and the current of the battery; and a second SOC estimating unit for estimating a second SOC of the battery on the basis of the first SOH, charge/discharge voltages, temperature, and current of the battery, or estimating a second SOC of the battery on the basis of the charge/discharge voltage, temperature, and current of the battery. |
