Patent ID: 8703324

Claim:
A battery module comprising: a plurality of batteries; a plurality of lead plates sequentially aligned in one direction and for electrically connecting the batteries; and a connection unit comprising an electrically insulating tape, wherein said connection unit is bonded to the lead plates via said electrically insulating tape such that the lead plates are electrically insulated from the connection unit, wherein each of the lead plates comprises at least one protrusion and at least one recess, wherein the protrusion of a first one of the lead plates is accommodated in the recess of a second one of the lead plates wherein the first one of the lead plates and the second one of the lead plates are spaced apart from each other wherein the connection unit includes a first connection unit bonded to upper surfaces of the lead plates, said first connecting unit having open regions through which the battery electrode terminals directly contact the lead plates; and wherein the connection unit includes a second connection unit bonded to the first connection unit and lower surfaces of the lead plates.