Cell manufacturing device and method, battery, and power consuming apparatus

A cell manufacturing device, configured to manufacture a cell comprising an electrode plate and a separator, the cell manufacturing device comprising:

• a film attaching mechanism configured to attach a film to the separator at a predetermined position before the electrode plate and the separator are wound, so as to form a reinforcing film layer on the separator;
• a winding mechanism configured to wind the electrode plate and the separator to form the cell;
• a feeding unit provided between the film attaching mechanism and the winding mechanism, the feeding unit being configured to deliver the separator with a predetermined length, the predetermined length being equal to a length of the separator required for winding of one cell, so that the film attaching mechanism determines the predetermined position based on delivery of the separator with the predetermined length, wherein:
• the feeding unit comprises a plurality of feed rollers, the plurality of feed rollers being provided at intervals, so that the separator with the predetermined length is delivered between the plurality of feed rollers;
• and
• a position of at least one of the plurality of feed rollers is adjustable to adjust a length of the separator delivered by the feeding unit;
• a detection unit configured to detect a position of a tab of the electrode plate and a thickness of the electrode plate and the separator, and transmit the position of the tab of the electrode plate and the thickness of the electrode plate and the separator to a control unit;
• and
• the control unit configured to adjust the positions of the feed rollers according to the position of the tab of the electrode plate and a difference between the thickness of the electrode plate and the separator so as to adjust the length of the separator delivered by the feeding unit.