| abstract |
Provided are a charge / discharge control device, a battery pack, an electronic device, an electric vehicle, and a charge / discharge control method for improving the cycle characteristics of a secondary battery while ensuring the volumetric energy density of the secondary battery. A secondary battery charged / discharged under first charge / discharge control includes a circuit configured to control charge / discharge by second charge / discharge control, and performs the second charge / discharge control. In this case, the change with time of the charging rate of the secondary battery is smaller than the change with time when the first charge / discharge control is performed. [Selection] Figure 1 |