BATTERY MODULE HAVING RAIL TYPE SOCKET AND BATTERY PACK INCLUDING THE SAME

Disclosed are a battery module having a rail type socket and a battery pack including the same, and more specifically a battery module including a plurality of first battery cell assemblies, each of which is constituted by connecting two or more cylindrical battery cells (100) to each other in parallel, the plurality of first battery cell assemblies being connected to each other in series, wherein each first battery cell assembly having the parallel connection structure is configured such that negative electrodes of the two or more cylindrical battery cells (100) are electrically connected to each other via a rail type socket (200), and the series connection between the first battery cell assemblies is performed through electrical connection between the rail type socket (200) and positive electrodes of battery cells (100) constituting an adjacent first battery cell assembly via connection members (300), and a battery pack including the same.