The slurry is applied on the first side by a slot die over a backing roller and becomes dry directly afterwards.
For the large amounts of electrodes required for e-car batteries, Techno Smart offers a highly efficient, proven and robust process.
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However, the biggest growth driver in the market for battery manufacturing technology is electromobility. Portfolio expanded to include solutions for the automotive sector In the first half of 2020, among others, a major contract was received from a battery manufacturer in Germany. For example, the company is benefitting from the growing demand for small-format lithium-ion batteries for hearing aids, headphones and other mobile electrical devices. With its simultaneous two-sided coating solution for battery electrodes, so far Dürr has been successful mainly in niche segments. Benefits of this unique process are, among others, smaller overall manufacturing footprint and high cost efficiency. Slot-dies are used to coat both sides of the electrode foil directly and are then dried in a horizontal air flotation dryer.
Dürr Megtec developed a special coating process for simultaneous two-sided coating. Solvents used in the manufacturing process can be recovered for reuse with Dürr technologies.īoth sides of the metal foil are coated in one pass to provide an efficient process. Within the lithium-ion battery cell, the role of the active material is to store the energy, while the metal foil ensures the dissipation of current. The drying process then creates a solid composite material. In the coating process, anode or cathode active material is applied on both sides as a thin slurry onto a metal foil. Dürr Megtec is part of the Clean Technology Systems division. With its coating, drying and solvent recovery systems, Dürr Megtec offers solutions for three essential steps in the production of lithium-ion batteries. With the acquisition of the US Company Megtec/Universal in 2018, Dürr expanded its portfolio by adding important competencies in battery manufacturing technology. Market-leading Dürr technologies for battery manufacturing Jochen Weyrauch, Deputy CEO of the Dürr Systems AG: "This provides us with a convincing and comprehensive package for major projects in the automotive sector." In the medium term, Dürr and Techno Smart are aiming for a sales volume in the high double-digit million range in battery manufacturing technology business. That is why Dürr is bringing the coating specialists technology on board.ĭr. The coating systems of the Japanese company Techno Smart are in high demand among battery manufacturers for e-cars. In the future, producers of batteries for electric cars will receive complete packages from one supplier: state-of-the-art technology for coating and drying electrodes and proven systems for solvent recovery.
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