Efficient energy storage systems are a key component for the energy transition. A central prerequisite is that energy storage systems must be convincing not only in terms of technical and economic aspects but also in terms of ecological sustainability. For this reason, the Fraunhofer THM/IKTS is working on concepts and technologies with which material and substance cycles can be closed and recovered materials and raw materials can be reused for battery cell production.
Resynthesis of active materials for lithium-ion batteries
In the coming years, increasing amounts of battery materials from recycling processes are expected to be returned. Fraunhofer THM/IKTS is investigating the conditions under which these materials can be reused for resynthesis and the influence they have on the electrochemical performance of the battery cells. With regard to the necessary material and substance quality, above all purity, existing recycling processes are further developed specifically for resynthesis processes and evaluated ecologically and economically. In order to be able to return active materials to the process cycle of electrode production, it is also essential to be able to guarantee consistent product quality. In addition, the Fraunhofer THM/IKTS is evaluating which recycling routes exist outside the value-added chain of lithium-ion batteries.