Cellforce Group, a joint venture of sports car manufacturer Porsche and battery specialist CUSTOMCELLS, has been implementing the mass production process for its electrode coating over the past 12 months.
The Cellforce Group and machine and plant manufacturer Dürr has jointly commissioned a high-tech coating facility for high-performance battery cells in Bietigheim-Bissingen.
Specifically, the Cellforce Group (CFG) will soon be using a special Dürr process that allows both sides of the electrode to be coated simultaneously. In this way, the coating process can be accelerated and the precision and quality significantly increased compared to the standard procedure.
In conventional processes, the anode and cathode materials are not applied simultaneously but rather one after the other on both sides of a thin metal foil.
In order to successfully commission and establish the process, the Cellforce Group has been on site at Dürr in Bietigheim-Bissingen for several months and has set up production on a factory line.
Processes ready for a new Cellforce Group site
The double-sided electrode coating technology was developed by Dürr’s US subsidiary, Megtec, which was acquired in 2018.
The Cellforce Group is currently building a state-of-the-art development and production site for battery cells in the Reutlingen-Kirchentellinsfurt industrial park. Once this new site is completed, the production processes set up in Dürr can be taken over and continued directly.
To ensure long-lasting operation of the coating line, Dürr also supplies equipment for the purification of exhaust air and the recovery of more than 99% of the solvents used.
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