Battery module and battery pack including the same

1 . A battery module comprising:

a battery cell stack comprising a plurality of battery cells;

a housing for the battery cell stack;

a pair of busbar frames that cover the front and rear surfaces of the battery cell stack; and

a pair of end plates that cover the busbar frames and are coupled to the housing,

wherein a busbar is mounted on each of the pair of busbar frames,

wherein a thin film layer is located between each of the pair of busbar frames and the respective end plate,

wherein the thin film layer comprises a thin film composition that generates heat at a first temperature,

wherein the thin film layer functions as an electrical conductor at the first temperature or more, and

wherein the thin film layer is coated on at least a part of a surface of the busbar.

2 . The battery module of claim 1 , wherein:

the first temperature is a temperature of 10 degrees Celsius or less.

3 . The battery module of claim 1 , wherein:

the thin film composition comprises a critical temperature resistor ceramic material.

4 . The battery module of claim 3 , wherein: the critical temperature resistor ceramic material comprises at least one of a composite vanadium oxide-based material, a boron oxide-based material, and a phosphoric acid-based material.

5 . The battery module of claim 4 , wherein:

the composite vanadium oxide-based material is selected from at least one of VO 2 , V 2 O 3 , and V 6 O 13 .

6 . The battery module of claim 1 , wherein:

the thin film composition further comprises a doping material.

7 . The battery module of claim 6 , wherein:

the doping material comprises at least one of Mo 4+ , Mo 5+ , Mo 6+ , W 5+ , W 6+ , and Nb 5+ .

8 . The battery module of claim 7 , wherein:

the thin film composition comprising the doping material generates heat at a second temperature, and

the second temperature is lower than the first temperature.

9 . A battery pack comprising the battery module of claim 1 .