Calender lines
for electrode foil
High-Precision Calender Systems for Lithium-Ion Battery Electrode Manufacturing
Electrode calendaring is one of the most critical process steps in lithium-ion battery manufacturing. The thickness, density and porosity of anode and cathode electrodes directly influence battery performance, energy density and cycle life. Achieving these demanding specifications requires exceptional machine precision under extremely high mechanical loads.
Precision under Extreme Forces
BREYER IONPress calender systems are engineered to combine line loads of up to 4,000 N/mm with thickness accuracies of up to ±1,5 µm. This unique combination enables the reliable production of high-quality battery electrodes while ensuring excellent process stability and repeatability.
Decades of Precision Engineering
For decades, BREYER has been developing and manufacturing high-precision calender systems for demanding industrial applications. This extensive experience has been transferred to battery electrode production, resulting in robust, reliable and highly accurate calender technology designed for the requirements of modern gigafactories and pilot production lines alike.
Fast, Accurate and Reproducible Gap Adjustment
Consistent electrode quality starts with precise gap control. BREYER's Fast & Easy Gap Adjustment technology enables operators to set the calender gap quickly, safely and with outstanding repeatability. Combined with inline thickness measurement and automatic gap control, the system continuously maintains target thickness throughout the production process, minimizing operator intervention and ensuring stable product quality.
NEU: Closed-loop thickness control learn more...
ADVANTAGES
- Fast and reproducible thickness adjustment
- Infinitely adjustable line load up to 4000 N/mm
- Direct gap measurement (closed loop)
- High precision compression through servo-hydraulic gap adjustment for distance and force
- Smallest thickness tolerances
- Powerful individual drives
- security system
- Compact design
- Fast Roll exchange (< 3h)
- Counter Bending system (option)
- Convenient user interface, simple operation
SCOPE OF SUPPLY
- Unwinder for manual coil changes up to 50 m/min, with tension control and web edge control.
- Automatic turret winders for highly automated systems up to 100 m/min
- Non-contact web cleaning
- Inspection systems
- Calender IONPress with 400mm, 600mm, 800mm or 1400mm roll width.
- NEW: Calender IONPress 400 core (laboratory)
- Roller quick exchange system (<3h)
- Optional counterbending device
- Roller cleaning
- Substrate pre-warming
- Thickness measurement systems
- Track&Trace
- Tension separation via controled haul-off's
- Winder for manual coil change up to 50 m/min, with tension control and web edge control.
- Automatic turret winders for highly automated systems up to 100 m/min
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Technical data
| Line speed | 0.5 – 100 m/min |
| Roller temperature control | water / thermal oil |
| Roller widths | 400, 600, 800, 1400 mm |
| Roller diameter | up to 800 mm |
| Roller surface | hard chrome-plated / carbide |
| Roller gap adjustment | servo-hydraulic control |
| Precision | ± 2 µm |
| Line loads | up to 4000 N/mm |
Examples of application
