CHARGE CONTROL DEVICE FOR SECONDARY BATTERY, CHARGE CONTROL METHOD FOR SECONDARY BATTERY, CHARGE STATE ESTIMATION DEVICE FOR SECONDARY BATTERY, CHARGE STATE ESTIMATION METHOD FOR SECONDARY BATTERY, DEGRADATION DEGREE ESTIMATION DEVICE FOR SECONDARY BATTERY, DEGRADATION DEGREE ESTIMATION METHOD FOR SECONDARY BATTERY, AND SECONDARY BATTERY DEVICE

摘要

A charge control device for a secondary battery controls a charge of the secondary battery including positive and negative electrodes. The device includes: a degradation degree detection and evaluation unit that detects and evaluates a degree of degradation of the secondary battery; and a charge control unit. The charge control unit controls a voltage application state to the electrode at a time of charge of the secondary battery based on an evaluation result of the degree of degradation of the second battery in the degradation degree detection and evaluation unit.