Control device and control method for solid-state battery

A control device for a solid-state battery, the control device comprising:

• a processor configured to control charging of the solid-state battery by referring to a map that is defined in advance based on an SOC of the solid-state battery and indicates a range in which continuous charging of the solid-state battery is allowed;
• and
• a memory storing the map, wherein
• in a case of charging the solid-state battery by an external power supply, the processor executes processing of:
• charging the solid-state battery until the SOC of the solid-state battery reaches an SOC threshold acquired by referring to the map based on the SOC at the start of charging;
• when the SOC reaches the SOC threshold, suspending the charging of the solid-state battery during a suspension time acquired by referring to the map based on the SOC threshold;
• and
• when the suspension time has elapsed, resuming the charging of the solid-state battery, and charging the solid-state battery until the SOC reaches an SOC threshold acquired by referring to the map based on the SOC at the resumption of charging.