SPIRAL ELECTRODE GROUP WINDING METHOD AND DEVICE AND BATTERY USING THEM

Continuous belt-shaped anode plates, cathode plates and separators are wound into groups of spiral electrodes by using a turnable winding core. In a specified position in the vicinity of the winding core, an edge position of a belt-shaped electrode plate is detected by an edge position detector for comparison with a reference position. A chuck movable from an end of the electrode plate in a running direction of the electrode plate and a perpendicular direction thereof is used to grip the electrode plated based on the comparison result to correct the edge position of the electrode plate. Then a second chuck restricted in its movement to only a direction parallel to the moving direction of the electrode plate by a guide is used to hold the electrode plate. A third chuck is used to hold the electrode plate to supply the tip end of the electrode plate to the winding core, and winding into groups of electrodes is completed.