Winding shaft, cell manufacturing apparatus, and cell manufacturing method

A cell manufacturing method, comprising:

• providing a winding shaft, wherein the winding shaft comprises a winding shaft body, an adjustment member and an actuator, the winding shaft body comprises a first winding surface, the adjustment member is configured to be mounted on the winding shaft body and movable simultaneously in an axial direction of the winding shaft and in a radial direction of the winding shaft, the adjustment member comprises a second winding surface, the first winding surface and the second winding surface are configured to wind plates jointly, and the plates comprise tabs;
• and obtaining a magnitude of misalignment between adjacent tabs of i tabs wound around the winding shaft, wherein i≥2;
• obtaining a maximum value from the magnitudes of misalignment, and computing a winding circumference adjustment amount of the winding shaft according to the maximum value;
• and
• driving the adjustment member to move by means of the actuator according to the winding circumference adjustment amount to change a relative position of the second winding surface with respect to the first winding surface, so as to adjust a winding circumference of the winding shaft.

A cell manufacturing method, comprising:

• providing a winding shaft, wherein the winding shaft comprises a winding shaft body, an adjustment member and an actuator, the winding shaft body comprises a first winding surface, the adjustment member is configured to be mounted on the winding shaft body and movable simultaneously in an axial direction of the winding shaft and in a radial direction of the winding shaft, the adjustment member comprises a second winding surface, the first winding surface and the second winding surface are configured to wind plates jointly, and the plates comprise tabs;
• and obtaining a magnitude of misalignment between adjacent tabs in an nth cell wound around the winding shaft, wherein n≥1;
• obtaining a maximum value from the magnitudes of misalignment;
• computing a winding circumference adjustment amount of the winding shaft according to the maximum value;
• and
• driving the adjustment member to move by means of the actuator according to the winding circumference adjustment amount to change a relative position of the second winding surface with respect to the first winding surface, so as to adjust a winding circumference by which the winding shaft winds an (n+1)th cell.