The Helmholtz Institute Münster explores new battery technologies based on innovative electrolytes. As a member of the Helmholtz Association, the institute combines the expertise of the three partners Forschungszentrum Jülich (FZJ), RWTH Aachen and MEET of the University of Münster. The scientists benefit from excellent research infrastructures at the three locations. It enjoys an international reputation in the fields of materials research (Forschungszentrum Jülich, FZJ), lithium (ion) batteries (MEET), and large-format cells and anion-conducting ceramics (RWTH Aachen). Together, the partners are tackling the question of how to store generated electricity cost-effectively, over the long term, in large quantities and in as small a space as possible.

Within the project ‘Online Safety Assessment of Lithium-Ion Systems in Operation’ (OSLiB) as part of BaNK A3, safety-critical conditions for lithium-ion batteries are to be investigated from the cell to the system level. FZJ (IEK-12) essentially contributes to validate diagnostic procedures for deposition and distribution of metallic lithium on anodes using primarily NMR-based chemical (cell) analysis and to determine total amounts of irreversibly deposited lithium as a function of cell operating parameters. Findings on relevant correlations between any cell defects and the type of lithium deposition are to be transferred to the module level in order to evaluate and optimize the intended diagnosis and assessment of safety-relevant effects of deviating production parameters.

Project participations