Secondary battery module
One embodiment of the present disclosure relates to a secondary battery module. A secondary battery module includes a plurality of battery cells and a first frame configured to accommodate and cool the plurality of battery cells. The first frame includes a housing configured to accommodate the plurality of battery cells and at least one cooling plate coupled to one surface of the housing, interposed between groups of one or more battery cells among the plurality of battery cells disposed in the housing, and configured to fix the plurality of battery cells and dissipate heat generated from the plurality of battery cells.
1. A secondary battery frame comprising:
a housing having a lower portion covering a lower portion of a plurality of battery cells and a pair of side portions integrally formed on the lower portion, the housing including a space formed between the pair of side portions for accommodating the plurality of battery cells; and
a second frame connected to the housing,
wherein the lower portion extends from a front edge to a rear edge,
wherein the pair of side portions includes a front side portion extending upward from the front edge and a rear side portion extending upward from the rear edge,
wherein the second frame includes:
a second frame body connected to the front side portion and the rear side portion;
a plurality of grooves formed on the second frame body, the plurality of grooves facing the plurality of battery cells;
a plurality of bus bars being coupled to the second frame body, each of the plurality of bus bars being contact with electrode tabs of adjacent battery cells of the plurality of battery cells, the plurality of bus bars being received in the plurality of grooves respectively; and
a plurality of support parts, each of the plurality of support parts being accommodated in each of the plurality of bus bars,
wherein the second frame body is coupled to the pair of side portions and connects the pair of side portions each other, and
wherein the second frame body is coupled to the lower portion.
2. The secondary battery frame of claim 1 , wherein the lower portion and the pair of side portions are integrally formed.
3. The secondary battery frame of claim 1 , wherein the housing covers:
an outer surface of each battery cell located at both ends among the plurality of battery cells; and
one surface of upper and lower surfaces of the plurality of battery cells.
4. The secondary battery frame of claim 1 , wherein each of the plurality of bus bars is interposed between the electrode tabs of the adjacent battery cells.
5. The secondary battery frame of claim 4 , wherein each of the plurality of bus bars is formed in a bent plate shape.
6. The secondary battery frame of claim 4 , wherein
each of the plurality of support parts is in contact with an inner surface of each of the plurality of bus bars.
7. The secondary battery frame of claim 1 , wherein each of the plurality of bus bars includes:
an inner surface forming an accommodation space, the accommodation space accommodating each of the support parts; and
an outer surface, a portion of the outer surface being coupled to the second frame body, another portion of the outer surface being contact with the electrode tabs of the adjacent battery cells.
8. The secondary battery frame of claim 1 , wherein the housing dissipates a heat generated from the plurality of battery cells.
9. The secondary battery frame of claim 1 , further comprising:
at least one plate disposed in between groups of at least two battery cells of the plurality of battery cells in the space formed between the pair of side portions.
10. The secondary battery frame of claim 9 , wherein the at least one plate includes a thermally conductive material that dissipates a heat from the plurality of battery cells.
11. The secondary battery frame of claim 1 , wherein each of the plurality of bus bars is concave towards each of the plurality of support parts, and wherein each of the plurality of support parts in inserted into each of the plurality of bus bars.
12. The secondary battery frame of claim 1 , wherein each of the plurality of bus bars includes:
a bus bar body coupled to the second frame body;
a first bus bar wing extending towards the adjacent battery cells from an end of the bus bar body; and
a second bus bar wing extending towards the adjacent battery cells from another end of the bus bar body.
13. The secondary battery frame of claim 12 , wherein the first bus bar wing is positioned between a support part and a first electrode tab,
wherein the second bus bar wing is positioned between the support part and a second electrode tab,
wherein the support part is one of the plurality of support parts, the support part being coupled to both the first bus bar wing and the second bus bar wing,
wherein the first electrode tab is one of the electrode tabs of the adjacent battery cells, and
wherein the second electrode tab is another of the electrode tabs of the adjacent battery cells.
14. The secondary battery frame of claim 1 , wherein the lower portion extends from a first edge to a second edge,
wherein the front edge connects a front end of the first edge and a front end of the second edge,
wherein the rear edge connects a rear end of the first edge and a rear end of the second edge.
15. The secondary battery frame of claim 14 , wherein the second frame is positioned at least one of the first and second edges and coupled to the pair of side portions.