Power storage device

1. A power storage device mounted on a rear portion of a vehicle, and comprising:

a power storage device;

a connection unit arranged on a side portion with respect to a longitudinal direction of said power storage device;

a high-voltage connection unit; and

a low-voltage connection unit of a lower voltage than said high-voltage connection unit, wherein

said high-voltage connection unit is arranged on a side surface of said connection unit located on a front side in said vehicle, and

said low-voltage connection unit is arranged on a side surface of said connection unit located on a rear side in said vehicle.

2. The power storage device according to claim 1 , wherein

said power storage device is arranged behind a rear seat.

3. The power storage device according to claim 1 , wherein

at least a part of the power storage device is arranged in a region between rear wheels.

4. The power storage device according to claim 1 , wherein

said high-voltage connection unit is configured to handle the voltage of 60 V or more, and

said low-voltage connection unit is configured to handle the voltage lower than 60 V.

5. The power storage device according to claim 1 , wherein

a control unit controlling driving of a hybrid system having a combination of an electric motor and a drive source is connected to said low-voltage connection unit, and a signal line controlling the hybrid system is connected to said low-voltage connection unit.

6. The power storage device according to claim 1 , wherein the side surface of said connection unit located on the front side in said vehicle is a side surface of said connection unit that faces the front of the vehicle.

7. The power storage device according to claim 1 , wherein the side surface of said connection unit located on the rear side in said vehicle is a side surface of said connection unit that faces the rear of the vehicle.

8. The power storage device according to claim 1 , wherein the high-voltage connection unit and the low-voltage connection unit are arranged on opposite sides of the connection unit.

9. The power storage device according to claim 1 , wherein the connection unit is arranged on the power storage device.

10. The power storage device according to claim 1 , wherein the connection unit is arranged on a casing of the power storage device.

11. A power storage device mounted on a front portion or a middle portion of a vehicle, and comprising:

a power storage device;

a connection unit, located adjacent to and behind said power storage device in said vehicle in a front-rear direction of said vehicle, for outputting to an external destination electric power supplied from said power storage device;

a high-voltage connection unit; and

a low-voltage connection unit of a lower voltage than said high-voltage connection unit, wherein

said high-voltage connection unit is arranged on a side surface of said connection unit located on an inner side in said vehicle, and

said low-voltage connection unit is arranged on a side surface of said connection unit located on an outer side in said vehicle.

12. The power storage device according to claim 11 , wherein

said high-voltage connection unit is configured to handle the voltage of 60 V or more, and

said low-voltage connection unit is configured to handle the voltage lower than 60 V.

13. The power storage device according to claim 11 , wherein

said power storage device is arranged under a front seat.

14. The power storage device according to claim 11 , wherein the side surface of said connection unit located on the inner side in said vehicle is a side surface of said connection unit that faces the inside of the vehicle.

15. The power storage device according to claim 11 , wherein the side surface of said connection unit located on the outer side in said vehicle is a side surface of said connection unit that faces the outside of the vehicle.

16. The power storage device according to claim 11 , wherein the high-voltage connection unit and the low-voltage connection unit are arranged on opposite sides of the connection unit.

17. The power storage device according to claim 11 , wherein the connection unit is arranged on the power storage device.

18. The power storage device according to claim 11 , wherein the connection unit is arranged on a casing of the power storage device.