Battery cell, battery module, and battery pack and vehicle including the same

1. A battery cell, comprising:

an electrode assembly;

a battery case configured to accommodate the electrode assembly; and

two pairs of electrode leads provided at outer surfaces of the battery case and connected to the electrode assembly,

wherein the battery case has a hexahedral shape having six outer surfaces, and

wherein each side of the hexahedral shape cannot have more than one electrode lead.

2. The battery cell according to claim 1 ,

wherein the two pairs of electrode leads are provided to four outer surfaces among the six outer surfaces of the battery case.

3. The battery cell according to claim 2 ,

wherein the two pairs of electrode leads include:

a pair of first electrode leads provided at a first outer surface of the four outer surfaces of the battery case and a second outer surface of the four outer surfaces of the battery case and disposed opposite to the first outer surface; and

a pair of second electrode leads provided at a third outer surface of the four outer surfaces of the battery case and a fourth outer surface of the four outer surfaces of the battery case, which are adjacent to the first outer surface and the second outer surface and disposed opposite to each other.

4. The battery cell according to claim 3 ,

wherein the pair of first electrode leads have different polarities.

5. The battery cell according to claim 3 ,

wherein the pair of second electrode leads have different polarities.

6. The battery cell according to claim 1 ,

wherein the battery cell is provided in plural, and the plurality of battery cells are block-coupled to each other.

7. A battery module, comprising:

at least one battery cell;

a module case configured to accommodate the at least one battery cell; and

two pairs of electrode bus bars provided at outer surfaces of the module case and electrically connected to the at least one battery cell,

wherein the module case has a hexahedral shape having six outer surfaces, and

wherein each side of the hexahedral shape cannot have more than one electrode bus bar.

8. The battery module according to claim 7 ,

wherein the two pairs of electrode bus bars are provided at four outer surfaces among the six outer surfaces of the module case.

9. The battery module according to claim 8 ,

wherein the two pairs of electrode bus bars include:

a pair of first electrode bus bars provided at a first outer surface of the four outer surfaces of the module case and a second outer surface of the four outer surfaces of the module case and disposed opposite to the first outer surface; and

a pair of second electrode bus bars disposed at a third outer surface of the four outer surfaces of the module case and a fourth outer surface of the four outer surfaces of the module case, which are adjacent to the first outer surface and the second outer surface and disposed opposite to each other.

10. The battery module according to claim 9 ,

wherein the pair of first electrode bus bars have different polarities.

11. The battery module according to claim 9 ,

wherein the pair of second electrode bus bars have different polarities.

12. The battery module according to claim 7 , further comprising:

a battery management system provided in the module case to manage the at least one battery cell.

13. A battery pack, comprising:

at least one battery module as defined in claim 7 ; and

a pack case configured to package the at least one battery module.

14. The battery pack according to claim 13 ,

wherein the battery module is provided in plural, and the plurality of battery modules are block-coupled to each other.

15. A vehicle, comprising at least one battery pack as defined in claim 13 .