The two partners are developing a closed loop for components of high-voltage batteries that can be used again and again. Particularly valuable materials are set to become available in a raw materials bank. Already before the start of the cooperation with Umicore in June 2018, Audi had analysed the batteries in the A3 e-tron plug-in hybrid and defined ways of recycling.

Together with the material technology experts, the car manufacturer then determined the possible recycling rates for battery components such as cobalt, nickel and copper. In laboratory tests, more than 95% of these elements can be recovered and reused. The partners are now developing specific recycling concepts. The focus is on the so-called closed-loop approach. In such a closed cycle, valuable elements from batteries flow into new products at the end of their lifecycle and are thus reused.

The Ingolstadt-based company is now applying this approach to the high-voltage batteries in the new Audi e-tron electric car. The aim is to gain insights into the purity of the recovered materials, recycling rates and the economic feasibility of concepts such as a raw materials bank. Security of supply and shorter delivery cycles are the goals.