PEM to Develop Safer and More Efficient Battery Packs in EU Project
The Chair of Production Engineering of E-Mobility Components (PEM) of RWTH Aachen University will be developing innovative battery packs in collaboration with numerous national and international partners as part of the European “RESiLiTE” research project. Cylindrical cells in thermoplastic housings are intended to serve as the basis for this. The aim of the project, which is funded by the EU with a total of around 6.2 million euros, is to increase the energy density, efficiency, safety, temperature resistance, and sustainability of battery packs of electric vehicles. If successful, the results will be transferred to the aviation sector.
More than 14 percent above the state of the art
PEM Director Professor Achim Kampker, says:
A cell holder structurally integrated into the housing makes it possible to completely dispense with casting materials,
With the planned concept, an energy density of 220 watt-hours per kilogram at the pack level is said to be realistic. According to Kampker, “this is more than 14 percent above the state of the art.” Thanks to combined indirect cooling solutions integrated into the cell holder of the housing, charging and discharging rates of more than 4.5C are expected to be achieved.
Longer operating times in cold environments
To ensure a high level of safety, advanced diagnostic software will be used to quantify the battery status using electrochemical impedance spectroscopy (EIS). The thermal management control is to be designed using neural networks via a scenario-based algorithm, thus increasing the battery’s energy efficiency.
PEM Management Member Professor Heiner Heimes, states:
The use of thermoplastic materials for the housing provides additional insulation for the battery pack, resulting in a longer service life in cold environments before active heating solutions are required,
Project partners from six countries
The intended measures and materials are expected to help reduce the total cost of ownership during the lifetime of battery packs and provide a more resilient system in comparison to the state of the art. The project partners come from Germany, Austria, Spain, Portugal, Slovenia, and Turkey.
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PEM to Develop Safer and More Efficient Battery Packs in EU Project, source
