How to Achieve High Energy Density and Uniform Electrode Calendering for Lithium-ion Batteries?

In lithium battery manufacturing, calendering process is a critical step for enhancing energy density. Pengjin Intelligence Calendering Machine ensures that every millimeter of the electrode achieves perfection through two core performance features:

• Exceptional Uniformity, Consistent Thickness:The machine achieves a transverse thickness control accuracy of up to ±1μm. This ensures uniform density across the entire electrode, fundamentally avoiding issues such as increased internal resistance and reduced cycle life caused by uneven calendering.
• Intelligent Temperature Control, Flawless Surface:Its unique full-width precision temperature control system stabilizes the roller surface temperature variation within ±1°C. Combined with specialized mirror-finish roller technology, the produced electrode surface is as smooth as a mirror, free from roller marks or bright spots, significantly enhancing battery safety and consistency.

Currently, calendering machine technology must meet higher demands for pressure and temperature control to accommodate high-quality electrode production. In this regard, Pengjin Intelligence is fully prepared:

• Forward-Looking Material Design: Our equipment supports higher pressure limits and broader temperature control ranges, specifically designed to accommodate future material system upgrades.
• AI Empowerment: Integrated AI algorithms enable real-time monitoring and adaptive adjustment of process parameters, achieving a leap from "stable calendering" to "intelligent calendering".

Choosing Pengjin Intelligence is not just about selecting a machine, it is about securing reliability and leadership for your future product line.

Key Technical Highlights (Calendering and Slitting Intergrated Machine):

• Roll specifications (mm): 950–1200–1300–1500
• Roll operation speed: 120m/min
• Roll material: 9Cr3Mo
• Roll surface hardness: ≥HRC66
• Round fluctuation ≤1.0μm, Straightness ≤2.0μm
• Synchronization accuracy ≤0.3‰
• Roll bending device: 8 roll bending cylinders, roll bending force 100t, control accuracy ±0.5 T
• Tensile tension 1300 N, closed loop control, accuracy ±5N