BREYER supplies IONDry 600 drycoating calender to Fraunhofer FFB

Innovative dry coating technology for sustainable electrode production

BREYER, a leading machine manufacturer in the field of calender technology, has been awarded the contract to supply a system for the dry coating of electrodes to the Fraunhofer Research Institution Research Manufacturing Battery Cell FFB (Fraunhofer FFB). The state-of-the-art line will make an important contribution to the development of an innovative and sustainable electrode manufacturing process and will be installed in one of the innovation modules in the "FFB PreFab", the first construction phase of Fraunhofer FFB.

New ways in electrode production

The aim of the research is to reduce the production costs for battery cells and to establish a more environmentally friendly alternative to conventional wet coating. In contrast to conventional electrode production, in this process the starting materials are first mixed dry without solvents ("dry mixing"). An electrode track is then generated from the dry premix in the roll gap and applied to the current arrester film (aluminium or copper).

The IONDry 600 makes it possible to continuously convey the premixed dry material into the roll gap and to coat a continuous trap path on both sides. The material is then wound up. A newly developed dosing system ensures a controlled distribution of the powdered material and its precise conveyance into the roll gap.

The rotating rolls create a homogeneous film, the thickness of which can be precisely adjusted depending on the roll speed. The roll gap itself can be precisely regulated via an electrohydraulic system. The system has several roll gaps, so that two films for the top and bottom of the electrode are produced simultaneously and then laminated to form a composite on the arrester.

 Technological highlights of the IONDry 600

■ Solvent-free process – no chemical solvents for environmentally friendly and resource-saving production.

■ Lower operating costs – No energy-intensive drying required, reducing energy consumption and production costs.

■ Precise gap control – The newly developed control system enables force and distance adjustable gap adjustment for maximum coating accuracy.

■ Increased process speed – The aim is to establish coating rates of at least 20 m/min with a coating width of 400 mm.

■ Inline Sensors for Process Control – Integrated sensors enable continuous monitoring and optimization of the coating process.

Dry coating technology represents a pioneering alternative to traditional wet coating, as it not only reduces environmental impact, but also significantly reduces investment and operating costs.

With the delivery of the IONDry 600, BREYER is setting an important milestone in the development of sustainable production processes for battery cells. The cooperation with Fraunhofer FFB supports research into innovative manufacturing technologies that will decisively advance electromobility and energy storage of the future.

About BREYER:

BREYER is a leading global supplier of innovative calender technologies for various industrial sectors. With decades of experience, the company develops tailor-made solutions for the highest quality requirements in production.

Contact

If you have any questions, please contact: joachim.bormann@breyer-extr.com.

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