Electrode terminal structure and lithium battery cover plate assembly

The utility model relates to an electrode terminal structure and a lithium battery cover plate assembly, and belongs to the field of new energy power batteries. The base plate is provided with a lead-out hole, the stop frame is arranged on one side of the base plate, a mounting hole matched with the lead-out hole is formed in the stop frame, the base plate is provided with a limiting part protruding outwards around the lead-out hole, and a containing cavity is formed between the limiting part and the stop frame. A pole column covering the lead-out hole and the mounting hole is arranged in the accommodating cavity; and the pole column is provided with a flange part facing the stop frame. According to the terminal structure, the flange part is clamped through the positioning piece and the supporting piece, and the positioning piece, the flange part and the supporting part can be clamped together through the limiting part which is integrally arranged with the substrate, so that the fixation of the pole is enhanc