With the widespread adoption of electric vehicles, the disposal of used batteries has become a critical issue. The Fraunhofer Research Center for Electric Drives (FZEB) in Germany, in collaboration with industry partners, has launched the ProBatman project, focusing on optimizing the direct recycling process for lithium-ion batteries. The project aims to improve material purity and yield to address the expected 360,000 metric tons of end-of-life batteries annually from 2040 onward.

Currently, lithium battery recycling predominantly employs pyrometallurgical and hydrometallurgical processes, which are inefficient and energy-intensive. The ProBatman project, coordinated by Netzsch-Gerätebau GmbH, is dedicated to developing more sustainable recycling technologies. Through direct recycling methods, the project is expected to save up to 13 gigatons of CO2 equivalent, aligning with Germany's sustainability strategy and EU battery regulation requirements.

The ProBatman project focuses on recovering volatile components and conductive salts, starting with the safe opening of battery cells and employing new technologies to separate active materials from the electrodes. The recovered materials, after analysis, cleaning, and regeneration, can be reused directly, enhancing profitability and recyclability. The project also emphasizes technical safety, transferability, and maturity, optimizing process parameters through lifecycle analysis.

The project consortium includes BMW AG, EurA AG, Fraunhofer ISC, Netzsch Group, and the University of Würzburg, with support from several other companies. Fraunhofer ISC brings years of research experience in direct recycling of lithium-ion batteries to the project, contributing scientific expertise and production facilities. This collaboration aims to advance the commercial application of battery recycling technologies and promote resource circularity.