CAP ASSEMBLY AND BATTERY CELL COMPRISING THE SAME

The present disclosure relates to a cap assembly coupled to a case that accommodates an electrode assembly to cover one open side of the case, the cap assembly comprising: a cap plate including a first hole; a cylindrical terminal portion including an insertion hole and inserted into the first hole to be connected to the electrode assembly; a sheet-shaped first insulating member disposed to face the cap plate; and a heat insulating member disposed between the first insulating member and the terminal portion.