BATTERY MODULE INCLUDING MULTIPLE PARALLEL BATTERY CELLS

Disclosed is a battery module, which includes cylindrical battery cells configured to be erect such that top caps thereof face upward; and a bus bar unit configured to connect the cylindrical battery cells in series and in parallel. The cylindrical battery cells include a first bank cell group in which first cylindrical battery cells are arranged in two or more rows; and a second bank cell group in which second cylindrical battery cells are arranged in two or more rows in a first direction parallel to the first bank cell group. The bus bar unit includes a first terminal bus bar disposed on the first bank cell group and electrically connected to a positive electrode of each of the first cylindrical battery cells; a second terminal bus bar disposed on the second bank cell group and electrically connected to a negative electrode of each of the second cylindrical battery cells; and a fishbone bus bar disposed on the first bank cell group and the second bank cell group and electrically connected to a negative electrode of each of the first cylindrical battery cells and a positive electrode of each of the second cylindrical battery cells.