| abstract |
The present invention relates to a battery module, and more particularly, to a battery module including a plurality of secondary batteries each having an electrode lead, at least one secondary battery of the secondary batteries, at least a portion of the electrode lead, A cartridge laminate having a plurality of cartridges; And a bus bar electrically connecting the electrode lead and the power terminal, wherein the ICB housing is mounted on one side of the cartridge stack; The bus bar includes a first connection portion which is provided to be opposite to the power supply terminal with a connection end therebetween and which is connected to the electrode lead and a second connection portion which is provided on the opposite side of the first connection portion with the connection end therebetween, A second connecting portion, and a connecting portion connecting the first connecting portion and the second connecting portion and embedded in the connecting end. The present invention can reduce the number of times of laser welding required for electrical connection between the power source terminal and the secondary batteries, thereby reducing the time required for assembling the battery module. |