SOLDERING STRUCTURE AND SOLDERING METHOD FOR BATTERY CELL, AND BATTERY

A soldering structure and a soldering method for a battery cell, and a battery are provided, relating to the field of battery technology. The soldering structure for the battery cell includes a wound body; full electrode tabs, formed at ends of the wound body; and current collecting parts, soldered to sides, facing away from the wound body, of the full electrode tabs to form multiple solder joints; in which the multiple solder joints are arranged at equal arc distances along a winding direction of the wound body. The multiple solder joints are arranged at equal arc distances along the winding direction of the wound body, so that the solder joints can be uniformly distributed on the full electrode tabs along the winding direction, and a current can be uniformly transmitted into the wound body through the full electrode tabs, reducing the current loss.