Battery module

A lead tab assembly (400) that electrically connects the unit cells together, wherein the lead tab assembly (400) includes a first lead tab (410) extending in a first direction; a second lead tab (420) that extends in the first direction; a temperature-sensing element (430) that is located between the first lead tab (410) and the second lead tab (420) and is electrically connected to the first lead tab (410) and the second lead tab (420); and an insulating member (440) that accommodates the first lead tab (410), at least a portion of the second lead tab (420), and the temperature-sensing element (430). Further provided is a battery module, wherein the lead tab assembly (400) electrically connects the unit cells (100) together. The first lead tab (410) is electrically connected to a first unit cell of the unit cells (100), the second lead tab (420) is electrically connected to a second unit cell of the unit cells (100).