Lithium Battery Masterclass - Lithium battery Slitting process

About this Video

• Video Title: Lithium Battery Masterclass - Lithium battery Slitting process
• Channel: Bonsai Technology
• Speakers: (Speaker name not provided in transcript)
• Duration: 00:04:08

Introduction

This video details the lithium battery slitting process, focusing on the use of shear blades in a roll-to-roll machine to split the electrode "mother reel" into smaller, usable pancakes. The video highlights key performance indicators (KPIs) for this process, such as maintaining tight tolerances in web width and ensuring clean, smooth cuts without damaging the coating.

Key Takeaways

• Electrode Web Processing: The process begins with a consistently thick and homogeneously coated electrode web.
• Slitting Machine: A slitting machine, either standalone or integrated into a calendaring system, uses shear blades to cut the mother reel into smaller pancakes.
• Precision Cutting: Maintaining tight tolerances (within ±0.2-0.3mm) in web width is crucial for downstream processes. The cuts must be clean and smooth, without damaging the coating.
• Shear Blades vs. Laser: Shear blades are preferred over laser cutting due to cost-effectiveness and speed limitations of laser technology for this application.
• KPIs: Key performance indicators include web width tolerance and the quality of the cut (cleanliness, smoothness).