18650 21700 4680 Full Tab Automatic Winding machine
Parameters
1. Winding method:
A. Three-winding needles and three-station winding are adopted.
B. Needle diameter Ø4.0 (or as specified by the customer (Ø3.5-
Ø8.0))
C. Winding diameter: Ø15-Ø32mm
D. Number of polar ears: All Tab
E. Battery cell height (unflattened tabs)
Winding capacity
1. Production capacity
The production speed of the battery cell equipment is ≥30PPM and
within 1200mm long negative electrode sheets. (21700 battery cell
The utilization rate is ≥95%
The utilization rate ={total production/(startup time - necessary
deduction time) × Theoretical production speed of the
equipment}×100%. Necessary deduction time: downtime not caused by
equipment reasons, such as material change, tape joining and other
production preparation times.
2. The pass rate is ≥98%
The yield rate = total number of good products/(Total production -
necessary deduction quantity) ×100%
(Except for poor material factors)
Necessary deductions should be made for defective products not
caused by equipment factors, such as poor tape connection,
excessive film length, and missing tabs, etc.
