Cylindrical wider

“Notching” creates precise tabs or cut-outs on electrode foils (e.g., anode/cathode). “Stacking” arranges those notched electrodes with separators in a defined sequence—often Z-pattern—to prepare cell layers for assembly. | A precision device that wraps cathode, separator, and anode layers tightly into a cylindrical “jelly‑roll” core, with controlled tension and accuracy for consistent lithium‑ion battery performance.