A novel structure for connecting a foil
electrode tab winding type battery pole set and a cover plate is disclosed. The structure includes a positive
electrode pressing plate, a negative
electrode pressing plate, a positive electrode
rubber mat, a negative electrode
rubber mat, the cover plate, a positive electrode
rivet, a negative electrode
rivet, a positive electrode sealing mat, a negative electrode sealing mat, a positive electrode connecting claw, a negative electrode connecting claw, connecting pieces, and the pole set. The positive electrode
rivet passes through the positive electrode sealing mat, the positive electrode connecting claw, the cover plate, the positive electrode
rubber mat and the positive electrode pressing plate in order and then is riveted. The negative electrode rivet passes through the negative electrode sealing mat, the negative electrode connecting claw, the cover plate, the negative electrode rubber mat and the negative electrode pressing plate in order and then is riveted. The connecting pieces are connected to the pole set through
ultrasonic welding, and then the connecting pieces of positive and negative electrodes are connected to the positive electrode connecting claw and the negative electrode connecting claw respectively through
ultrasonic welding or
laser welding. Beneficial effects of the novel structure include 1) a high
battery energy ratio, 2) a low price and 3) high process implementability.