Patent ID: 8632369

Claim:
A terminal connecting device for an energy storage module to connect a plurality of cells for a high voltage capacitor or battery assembly, the device comprising: a busbar having a body portion formed of a plate having a predetermined length stepped at both ends, and a cell terminal mounting portion having an insert hole at each end of the body portion into which a corresponding cell terminal is inserted; and a fastening member to secure the busbar by a screw connection with the cell terminal through the insert hole at each end of the body portion of the busbar, the fastening member having a nut body portion formed of a plate having a hollow at the center and the outer periphery processed in the shape of a nut, and a nut screw portion having a screw thread formed along the inner periphery of the hollow of the nut body portion for screw connection with the cell terminal, wherein the height of the step of the body portion of the busbar is equal to the height of the nut body portion of the fastening member.