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Electrode Coating

Dürr Megtec provides complete packages to manufacturers of batteries for electric cars who can rely on its state-of-the-art technology for electrode coating and drying and its proven systems for solvent recovery and refining.

Lower Costs, Enhanced Efficiencies and Increased Yields

From a coating line that meets the basic and competitive needs of a new player in the market to a fully integrated production line for high-volume runs, Dürr Megtec is a single-source OEM that can meet all your electrode production requirements, including the support during process development. Our capabilities cover turnkey coating lines, equipment installation, start-up supervision, and 24/7 service and parts support.

Solutions for lithium-ion battery manufacturing

Simultaneous Two-Sided Coating

The simultaneous two-sided coating is characterized by a straight-path product flow and a single coating station. This unique process provides benefits such as a smaller overall manufacturing footprint and no edge curl after drying, and consists of a slot-die coating on a backing roll immediately followed by a tensioned-web slot-die coating to coat both sides of the foil in one pass. An air flotation dryer enables simultaneous two-sided coating as the foil is running through a non-contact drying process.

Tandem Coating

The tandem coating is based on mature technology with only one, straightforward coating process taking place. Tandem coating is less sensitive to foil quality and thus optimized for large foil widths. The process is characterized by a slot die coating on a backing roll to coat one side at a time. This is more common for high volume manufacturing. Either roll support or flotation drying can be used which provides some flexibility to the customer.

Specifications

Coat weight 70-300g/m2 dry
Coat weight precision < +/- 1%
Sharp edges < 3mm
Dimensions & register +/- 0.5mm