Lithium Battery Masterclass - Lithium battery Slitting process

About this Video

• Video Title: Lithium Battery Masterclass - Lithium battery Slitting process
• Channel: Bonsai Technology
• Speakers: (Unspecified in transcript)
• Duration: 00:04:08

Introduction

This video details the lithium battery slitting process, focusing on the mechanical cutting system used to split the electrode mother reel into smaller, usable pancakes. The process, its key performance indicators (KPIs), and why laser technology isn't preferred are explained.

Key Takeaways

• The electrode web, with consistent thickness and coating, is processed by a slitting machine.
• This machine uses shear blades to split the mother reel (anode) into multiple, smaller pancakes.
• Key KPIs include maintaining tight tolerances in web width (±0.2-0.3mm) for downstream processes and ensuring clean, smooth cuts without damaging the coating.
• Mechanical shear blades are preferred over laser cutting due to cost-effectiveness and speed. Laser systems have limitations in slitting speed and justify higher capital investment costs.
• The limitation in mechanical cutting speed is determined by the unwinding and rewinding units for the master and daughter reels.