BATTERY CELL, METHOD AND SYSTEM FOR MANUFACTURING BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS

1 . A battery cell, comprising:

a housing, wherein an outer surface of the housing is provided with a recess;

an electrode component accommodated within the housing; and

an electrode terminal at least partially accommodated within the recess, wherein the electrode terminal is configured to be electrically connected to the electrode component to export electric energy of the electrode component;

wherein the recess is configured to accommodate at least a part of a busbar of a battery, the busbar is configured to connect electrode terminals of a plurality of battery cells to electrically connect the plurality of battery cells.

2 . The battery cell according to claim 1 , wherein a part of the electrode terminal positioned outside the housing is completely accommodated within the recess.

3 . The battery cell according to claim 1 , wherein the housing comprises two first surfaces oppositely arranged along a first direction, two second surfaces oppositely arranged along a second direction, and two third surfaces oppositely arranged along a third direction.

4 . The battery cell according to claim 3 , wherein an area of the first surface is greater than an area of the second surface, and the area of the first surface is greater than an area of the third surface.

5 . The battery cell according to claim 3 , wherein the first direction, the second direction and the third direction are perpendicular to each other.

6 . The battery cell according to claim 3 , wherein:

the recess is recessed relative to the first surface; and

the electrode terminal comprises a first electrode terminal and a second electrode terminal having opposite polarities, wherein at least a part of the first electrode terminal and at least a part of the second electrode terminal are accommodated within the recess.

7 . The battery cell according to claim 6 , wherein the first electrode terminal and the second electrode terminal are correspondingly arranged along the second direction.

8 . The battery cell according to claim 7 , wherein:

two ends of the recess along the second direction extend to the two second surfaces respectively; and/or

one end of the recess along the third direction extends to one of the third surfaces.

9 . The battery cell according to claim 6 , wherein the recess comprises a first recess and a second recess that are spaced apart from each other, at least a part of the first electrode terminal is accommodated within the first recess, and at least a part of the second electrode terminal is accommodated within the second recess.

10 . The battery cell according to claim 9 , wherein the first recess and the second recess are correspondingly arranged along the second direction.

11 . The battery cell according to claim 10 , wherein

one end of the first recess away from the second recess extends to one of the second surfaces, and one end of the second recess away from the first recess extends to the other of the second surfaces; and/or

one end of the first recess along the third direction and one end of the second recess along the third direction extend to a same third surface of the third surfaces.

12 . The battery cell according to claim 9 , wherein:

a projection of the first recess along the first direction and a projection of the second recess along the first direction are arranged along a diagonal direction of a projection of the housing along the first direction.

13 . The battery cell according to claim 12 , wherein

one end of the first recess along the second direction extends to one of the second surfaces, and one end of the second recess along the second direction extends to the other of second surfaces; and/or

one end of the first recess along the third direction extends to one of the third surfaces, and one end of the second recess along the third direction extends to the other of the third surfaces.

14 . The battery cell according to claim 3 , wherein:

the recess comprises a first recess and a second recess, the first recess is recessed relative to one of the second surfaces, and the second recess is recessed relative to the other of the second surfaces; and

the electrode terminal comprises a first electrode terminal and a second electrode terminal having opposite polarities, wherein at least a part of the first electrode terminal is accommodated within the first recess, and at least a part of the second electrode terminal is accommodated within the second recess.

15 . The battery cell according to claim 14 , wherein two ends of the first recess along the first direction extend to the two first surfaces respectively, and two ends of the second recess along the first direction extend to the two first surfaces respectively.

16 . The battery cell according to claim 14 , wherein the first recess and the second recess are correspondingly arranged along the second direction.

17 . The battery cell according to claim 16 , wherein one end of the first recess along the third direction and one end of the second recess along the third direction extend to a same third surface of the third surfaces.

18 . A battery, comprising:

a plurality of battery cells each being the battery cell according to claim 1 ;

a busbar configured to connect electrode terminals of the plurality of battery cells to electrically connect the plurality of battery cells, wherein the recess of each of the plurality of battery cells is configured to accommodate at least a part of the busbar.

19 . The battery according to claim 18 , wherein the busbar is integrally accommodated in a space formed by the recesses of the plurality of the battery cells.

20 . An electrical apparatus comprising the battery cell according to claim 1 , wherein the battery cell is configured to provide electric energy.