Winding cores with winding support in battery foil production
The production of aluminum and copper foils, separator foils, as well as coated anode and cathode materials for lithium-ion batteries places the highest demands on the winding process. The materials used are extremely thin, mechanically sensitive, and often functionally coated – even the smallest unevenness or edge deformation can impair the quality of the entire winding. INOMETA offers winding cores specially developed for these applications, which ensure maximum web stability, gentle material handling, and high process reliability – both in dry and wet processes.
Contact our sales team today for expert advice on WinCore® winding cores and other first-class roller solutions from INOMETA, the leading manufacturer from Germany. Make your inquiry now!
Separator foils, aluminium and copper foils, as well as functionalized electrode materials – such as anode and cathode coatings – pose a particular challenge in the winding process due to their low thickness and high sensitivity to mechanical stress. Even the slightest shear forces, uneven tension, or edge deformation can lead to web disruptions, shifts, or material breaks – especially at high winding speeds. This is exactly where INOMETA’s reliable WinCore® winding cores with winding support come into play: their high concentricity and precisely manufactured geometry ensure that the web material is evenly supported, thus reliably preventing damage to the material edge. The smooth or functionally coated surface reduces the risk of particle adhesion or cutting damage and ensures consistent web guidance throughout the entire winding process.Thanks to the integrated winding support, the use of double-sided adhesive tape is eliminated – even the thinnest battery foils are laid cleanly, adhesive-free, and with low stress directly onto the core. This prevents defects and ensures perfect first windings, without preparatory or subsequent work steps. This prevents misalignment and ensures perfect first windings without any preparatory or subsequent work steps. For applications involving abrasive or sharp-edged materials, INOMETA offers cut-resistant winding core variants that reliably prevent cuts in the core surface and damage to the first winding layers.
Choosing the right core is crucial for damage-free processing of sensitive film webs. INOMETA cores combine mechanical precision with innovative surface technologies to ensure uniform contact. Additional options such as winding aids or cut-resistant surfaces support automated, clean processing and reduce downtime during operation.The media-resistant properties of WinCore® winding cores are particularly beneficial in sensitive production environments such as drying rooms or clean room zones. The materials used are resistant to moisture, oils, and common cleaning agents, which prevents swelling due to ambient humidity. The smooth, closed surfaces are low in particles and easy to clean – a decisive advantage for applications with strict quality and hygiene standards. For thermally stressed processes such as accelerated drying phases or winding areas near ovens, temperature-stable variants with increased dimensional stability are also available.
INOMETA winding cores can be flexibly adapted to different machine concepts, substrate types, and winding parameters. The modular system allows for individual design in terms of diameter, length, material structure, and functionality – whether in electrode manufacturing, separator processing, or demanding coating processes. Both standard solutions and customer-specific special designs are possible.Thanks to precise manufacturing and durable materials, the winding cores offer maximum process reliability and can be easily integrated into existing systems – even as a retrofit solution for modernized production lines. Additional features such as winding support or cut-resistant surfaces further increase usability and service life in continuous operation.
Depending on the design (Ecoline, Proline, with winding support or cut-resistant surface), the following configuration features are available:
WinCore® winding cores stand for resource-saving efficiency in winding technology. Thanks to their high reusability and durable design, they help significantly reduce waste in the production process. The basis for every customer-specific design is a precise understanding of your application – that’s why we rely on sound technical advice based on our data sheet. This ensures that every winding core is optimally tailored to your machines and process requirements. Details about our WinCore® winding cores, configuration features, and areas of application can be found in our WinCore® brochure.INOMETA is also your partner for intelligent, digitally integrable roller and core solutions. With modern RFID technology, high system reliability, and a broad portfolio of variants, we develop solutions that not only stabilize your production processes but also actively improve them – from standard products to high-end special designs.
As your partner for winding cores, rollers, and digital solutions, we optimize and automate your production processes using state-of-the-art technology, ensuring maximum safety, and leveraging a broad portfolio of roller types. Contact our sales team to discover more about our customized winding and roller solutions.
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