BATTERY MODULE AND METHOD FOR MANUFACTURING BATTERY MODULE

摘要

A battery module joined to a joint body includes battery cells and heat transfer plates each provided between adjacent battery cells. Each heat transfer plate has a sandwiched portion provided between adjacent battery cells and a joined portion that is joined to the joint body and has a facing surface facing the joint body. A first heat conductive layer that contacts a battery cell and has a first thickness is provided on the sandwiched portion of each heat transfer plate. A second heat conductive layer is provided on the facing surface of each heat transfer plate other than the heat transfer plate that is the closest to the joint body when the joined portion is joined to the joint body. The second heat conductive layer is configured to contact the joint body. The second heat conductive layer on the heat transfer plate that is the farthest from the joint body when the joined portion is joined to the joint body has a second thickness, which is greater than the first thickness.