Information processing method and information processing system

1. An information processing method for use in a computer, the information processing method comprising:

acquiring a charging state and a deterioration state of a battery;

acquiring a use schedule of the battery;

determining an upper limit of the charging state of the battery based on the deterioration state;

determining a lower limit of the charging state of the battery based on the deterioration state;

determining a charging plan of the battery based on the upper limit of the charging state determined, the lower limit of the charging state, the use schedule, and the charging state; and

outputting the charging plan determined.

2. The information processing method according to claim 1 , further comprising:

acquiring a position of a vehicle loaded with the battery and positions of a plurality of charging stations; and

determining the charging plan including information indicating a charging location based on the position of the vehicle and the positions of the plurality of charging stations.

3. The information processing method according to claim 1 , further comprising:

acquiring the position of the vehicle loaded with the battery and a position of a charging station; and

determining the charging plan including information indicating charging time based on the position of the vehicle and the position of the charging station.

4. The information processing method according to claim 1 , further comprising:

acquiring a movement route of a vehicle loaded with the battery and positions of a plurality of charging stations; and

determining the charging plan including information indicating a charging location based on respective distances from the movement route to the plurality of charging stations.

5. The information processing method according to claim 1 , wherein

the charging plan includes information indicating the upper limit of the charging state.

6. The information processing method according to claim 1 , wherein

the charging plan includes information indicating charging time.

7. The information processing method according to claim 1 , further comprising:

acquiring a reservation status of a charging station from a reservation server;

determining the charging plan based on the reservation status; and

outputting, as a reservation request, the charging plan determined to the reservation server.

8. The information processing method according to claim 1 , wherein

the determining of the upper limit of the charging state is determining the upper limit of the charging state based on a degree of deterioration progress according to a degree of the deterioration state.

9. The information processing method according to claim 8 , further comprising:

acquiring a permitted degree of deterioration progress, wherein

the determining of the upper limit of the charging state is determining the upper limit of the charging state based on the degree of deterioration progress according to the degree of the deterioration state and the permitted degree of deterioration progress.

10. The information processing method according to claim 1 , wherein

the determining of the upper limit of the charging state is determining the upper limit of the charging state based on the deterioration state and at least one of a current amount at time of charging the battery, a current amount at time of discharging the battery, a temperature, and the charging state.

11. An information processing system, comprising:

an acquisition unit which acquires a charging state and a deterioration state of a battery and a use schedule of the battery;

a first determination unit which determines an upper limit of the charging state of the battery based on the deterioration state and determines a lower limit of the charging state of the battery based on the deterioration state;

a second determination unit which determines a charging plan of the battery based on the upper limit of the charging state determined, the lower limit of the charging state, the use schedule, and the charging state; and

an output unit which outputs the charging plan determined.