Panacol has developed specially formulated three UV adhesives that protect welded joints on cell contacting systems and electric car battery packs from corrosion. The flexible adhesives enable vibration resistant connections and have a low ion content.
High performance cell contacting systems (CCS) combine individual lithium-ion battery cells for hybrid and electric vehicles to form battery packs. They are often connected by welded strands or wires, and the adhesive is applied to the joints as a protective coating. The coating provides corrosion resistance, as well as additional mechanical support when subjected to vibrations allowing it to compensate for thermal expansion of the different materials.
UV-curing adhesives Vitralit® UV 2113 and Vitralit® UV 2114 are characterised by high adhesion to many materials and are designed to meet the requirements of the automotive industry in terms of media and temperature resistance. The rheological properties of both adhesives can be adapted to individual customer requirements.
The adhesives can be cured with light in the UVA or visible range in just a few seconds. Both gas discharge lamps and LED spot systems can be used for curing. The UV and LED UV curing systems from Dr. Hönle, such as the high intensity LED Powerline AC/IC HP, work well with the Panacol adhesives. Vitralit® UD 8050 is a dual curing adhesive ideal for complex CCS geometries with shadowed areas. After UV irradiation, the ion-pure acrylate adhesive post-cures in the shadowed areas by reacting with humidity in the air.
