BATTERIES
Extraction and management of fine and reactive dust during the production, assembly and recycling of lithium-ion batteries. Ideal for controlling contamination, cleaning automated production lines and recovering high-value materials such as black mass, ensuring operational safety.
Slurry Mixing
Slurry mixing phase, powdered raw materials – such as active ingredients, conductive additives and binders – are measured out and mixed with solvents to produce a homogeneous paste known as a slurry. This mixture must then be applied to the metal collectors, so uniformity, contamination control and dust management are critical factors.
Dupuy ties in perfectly at this stage thanks to its ability to vacuum fine dust and process residues directly into the dosing and mixing areas. Where technical or potentially sensitive powders are present, specific solutions can also be evaluated in an ATEX configuration.
Coating & Drying
During the Coating & Drying phase, the slurry is uniformly deposited on copper or aluminum foil and then dried through ovens or controlled drying systems. The process enables the liquid mixture to be transformed into a solid, stable electrode layer ready for further processing.
Our solution can be integrated to extract dry residues, light dust, and particles generated along the coating line and in the areas leading out of the drying section. This helps keep the line clean, reduce contamination, and improve the continuity of the production process.
Calendering
In the Calendering, the dried electrode is passed between high-precision rollers that compress its thickness, increasing its density and improving the adhesion of the material to the metal collector. This step is critical to achieving consistent electrochemical performance and uniform mechanical properties.
With our systems, we enter the calendering stage to remove fine dust, dry residue and particles that may become detached during material compression. Localized suction helps protect rollers, limit contamination and maintain stable product quality.
