Battery Module and Method of Manufacturing the Same

A battery module includes: a battery cell assembly including a plurality of battery cells adjacent to each other and stacked in parallel and a plurality of electrode leads protruded from respective ones of the plurality of battery cells; and a module cover accommodating the battery cell assembly, wherein the module cover includes an upper cover part exposing the plurality of electrode leads while covering an upper surface and a side surface of the battery cell assembly and a bus bar frame part coupled with the upper cover part and integrally formed with the upper cover part at a position corresponding to the plurality of electrode leads exposed by the upper cover part, and wherein the bus bar frame part includes a plurality of bus bars electrically connected to respective ones of the plurality of electrode leads.