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With ever-increasing specific energy and power densities, electrochemical storage systems in particular also harbor a growing (latent) hazard potential. The introduction of new material combinations and ever-increasing demands on storage systems combined with cost pressure therefore require research into the safe use of batteries at cell, module and system level for both mobile and stationary applications. Accordingly, the electrochemical, electrophysical and thermodynamic processes need to be identified and understood and specific handling rules developed, starting with small laboratory cells and extending to large battery systems. Due to the complexity of electrochemical storage systems, this requires a special, cross-system bundling of expertise from electrical engineering, electrochemical process engineering, sensor technology and energy system technology, as well as the necessary research infrastructure. In this context, the following scientific topics are the subject of current research work (mentioned here are batteries, but mostly transferable to other energy storage systems):
- Development and validation of safety concepts for batteries
- Evaluation of test procedures with regard to functionality and safety
- Battery condition detection and determination of residual value, e.g. for second life applications
- Methods for the application of reliability and availability indicators for electrical energy storage systems, performance guarantees
- Risk assessment and management
- Battery ageing