Simulation of Battery Cells and Applications in Storage Systems

  In SimBAS, batteries are studied and evaluated simulatively from the material to the application. At ISEA, the section from material to battery cell is addressed with a database of real and virtually calculated battery cells.

In the project "Simulation of Battery Cells and Applications in Storage Systems - SimBAS", a combined storage simulation toolchain is being developed that covers the value chain from the materials for battery cells to the application. To this end, the Chair of Electrical Energy Storage Technology at TU München (EES), the Chair of Electrochemical Energy Conversion and Storage Systems Technology at RWTH Aachen University (ISEA), Production Engineering of E-Mobility Components at RWTH Aachen University (PEM), the Fraunhofer Institute for Silicon Technology (ISIT) and the Fraunhofer Institute for Integrated Systems and Device Technology (IISB) are working together on the project. The project is coordinated by EES. Within the programme framework being developed in SimBAS, aspects of the design of current and future lithium-ion battery cells can be mapped for the first time to a suitable system design for an application-specific application. Technical, economic and design-specific aspects are taken into account. In the field of battery cells, the question is answered as to how cost and performance parameters of current and future battery cells can be derived from material and production data. The basis is a database in which parameters of various cell and system components can be managed. From these, virtual cells can be dimensioned or "digital twins" of existing cells can be created. The battery cells determined in this way are simulated in the system model to match the selected system topology and specifications for the system periphery, and it is analysed which cell types or combinations of cell types (keyword: hybrid storage) can fulfil specified applications in the most technically and economically sensible way. On the application side, in addition to current singular storage applications, singular and combined mobile and stationary applications of the future are also considered and their requirement profiles are integrated into the system model. Furthermore, based on our own specialised simulation tools for the design of energy storage solutions in combination with wind turbines, findings will be incorporated and solutions for selected, relevant use scenarios will be designed. The definition of future battery cells and use cases will be done in cooperation with industry representatives in workshops and with the help of a catalogue of guiding questions in order to arrive at practical assessments. The resulting holistic simulation toolchain will be made open source in order to achieve the greatest possible benefit in research and industry.

 

Duration

01st January 2021 – 31st December 2023

 

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Funding

 

Federal Ministry of Education and Research (BMBF) – Funding Code 03X90330A

 

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