BATTERY MODULE, ELECTRICITY STORAGE DEVICE, ELECTRICITY STORAGE SYSTEM, ELECTRONIC INSTRUMENT, ELECTRIC VEHICLE, AND ELECTRIC POWER SYSTEM

摘要

This battery module comprises a layered body containing at least a plurality of layered battery units, an insulated rod passing through the layered body, and fastening parts for fastening the layered body from both ends of the insulating rod passing through the layered body. As the layered body is fastened by the fastening parts, the plurality of battery units become fastened, bringing tight contact portions on conductive members from adjacent battery units into tight contact with each other, and establishing an electrical connection between the adjacent battery units.