Battery module

A battery module includes a plurality of battery cells, end blocks and a connecting portion. The plurality of battery cells are aligned in one direction and each has a terminal portion formed on one surface thereof. The end blocks are respectively disposed at outermost sides of the battery cells, and each has a power terminal portion formed one surface thereof. The connecting portion electrically connects the terminal portion of the battery cell disposed at the outermost side of the battery cells to the power terminal portion.