Battery Module Having Improved Sealing Characteristics of Cooling Duct

摘要

The present invention provides a battery module having improved cooling duct sealing properties. The battery module comprises: a battery stack which has the inlet of an air flow path at one side and the outlet of the air flow path at the other side, and whose inlet and outlet are open; and multiple cooling ducts coupled to either side of the battery stack so as to communicate respectively with the inlet of the air flow path and the outlet of the air flow path. At least one of the multiple cooling ducts is provided with a plug accommodating unit, which defines a through hole, and a harness accommodating plug, which is air-tightly inserted in the through hole and has multiple wire accommodating holes. The harness accommodating plug is configured such that the wires of an internal harness or an external harness pass through the wire accommodating holes. The internal harness and external harness are electrically coupled around the harness accommodating plug.