Patent ID: 9744874
Date: 2017-08-29
CPC Classifications: B60L,Y02T

Claim:
1. An electric vehicle comprising: a vehicle drive apparatus configured to receive electricity to generate vehicle drive power and configured to generate electricity; a secondary battery that selectively (i) receives electricity from the vehicle drive apparatus and (ii) outputs electricity to the vehicle drive apparatus; a current sensor that selectively detects (a) an electric current to be input into the secondary battery and (b) an electric current output from the secondary battery; and an electronic control unit configured to control charging and discharging of the secondary battery, and configured to calculate, using a detected value of the electric current from the current sensor, an evaluation value indicating a degree of deterioration of the secondary battery due to non-uniformity in salt concentration in the secondary battery caused by charging and discharging of the secondary battery, wherein the evaluation value is an integrated value of damage quantities of the secondary battery, the damage quantities being calculated based on the detected value of the electric current and an energizing time of the electric current, and the electronic control unit is configured to execute a capacity-raising control in which a remaining capacity of the secondary battery is raised, the capacity-raising control being executed by the electronic control unit when the evaluation value reaches a prescribed threshold.