Platen and contact rollers in battery manufacturing

Maximizing coating quality and winding precision with optimized platen and contact rollers

In the manufacture of modern energy storage devices, platen and contact rollers form the decisive interface to the substrate. Wherever material webs must be fixed, compacted, or guided with defined force, these components determine the homogeneity of the active materials and the mechanical integrity of the winding results.
INOMETA develops specialized solutions made of CFRP, GRP, and aluminium, precisely tailored to the requirements of pressure distribution and process stability in modern production lines. Through the targeted coordination of material, bearing, and PROTEK^® coatings, we ensure that sensitive electrode and separator films remain damage-free throughout the entire processing sequence.

Get in touch with the INOMETA sales team today for comprehensive advice on rollers for battery production and other innovative products from the renowned manufacturer based in Germany. Make your inquiry now.

Defined contact force and homogeneous pressure distribution

In battery manufacturing, platen rollers ensure the controlled fixation and advancement of materials. Particularly in coating, laminating, and calendering processes, a constant pressure distribution across the entire web width is the benchmark for quality.

• Electrode coating: Our platen rollers ensure uniform pressing of the active material onto the carrier foil. This minimizes fluctuations in coating thickness and ensures reproducible cell performance.
• Calendering & lamination: During the compaction of the electrode structure, platen rollers support the setting of defined porosities. In lamination processes, they reliably prevent air entrainment and guarantee homogeneous adhesion of the functional layers.

Winding stability through innovative contact roller systems

In battery cell production, the winding process is a critical quality step. Contact rollers from INOMETA perform the specialized task of acting on the winding material with defined force. This prevents the entrapment of air between the layers – a decisive factor in ensuring the required energy density and mechanical integrity of electrode windings.

• Precise response: The low dead weight allows for sensitive control of the contact force, achieving uniform winding hardness without mechanical overload of the sensitive coating.
• Vibration damping: The excellent damping properties of CFRP minimize vibrations in the winding system, which increases the edge stability of the winding and reduces the risk of micro-cracks in the active material.

Technological excellence: LDS and ALDS for wide web processing

Modern battery production lines rely on increasingly large web widths to increase output. Here, the control of roller deflection becomes a process-critical factor:

• LDS (Low Deflection System): These CFRP rollers drastically minimize deflection compared to standard solutions. In battery foil production, this ensures a homogeneous contact line across the entire width, avoiding uneven air entrainment and associated capacity losses in the subsequent cell stack.
• ALDS (Active Low Deflection System): As a high-end solution, the ALDS allows for active adjustment of the roller shape during winding. As winding parameters change with increasing diameter and varying tension of the electrode foil, the ALDS dynamically adapts the contact line. This guarantees perfect flatness and winding quality from the first to the last layer – a must for the high safety standards of the battery industry.

All advantages of our platen and contact rollers at a glance

• Homogeneous contact force: Avoidance of air entrainment and wrinkling for perfect winding results and maximum energy density.
• Precise compaction: Constant pressure distribution for reproducible layer thicknesses and exactly defined porosities of the electrode.
• Dynamic adaptation: Active deflection compensation (ALDS) to ensure the highest quality in wide web applications.
• Minimization of waste: A stable process from the very first layer reduces expensive material loss (scrap rate).
• Vibration damping: Smooth-running CFRP constructions protect sensitive coatings from mechanical stress and micro-cracks.
• Process reliability & cleanability: Reduced material adhesion and long service life thanks to specialized PROTEK^® coatings.
• Flexible system integration: Customized mechanical design (axle journals, shaft journals) for easy integration into existing plant layouts.

Systemic roller solutions for battery manufacturing

Platen and contact rollers are an integral part of holistic roller solutions for battery and battery foil production. They complement drive, draw, tension, sensor, and guide rollers with the targeted mechanical component of pressure and contact.
Contact the INOMETA team to discuss the design of platen and contact rollers in the context of your processes. Together, we will develop a roller solution tailored to your application – technically precise, process-oriented, and easy to integrate.