Modelling & Simulation
We explore batteries from the microscopic to the system level using modelling and simulation. Our work spans Li-ion, Na-ion, Al-ion, and solid-state batteries, investigating their electrochemical, aging, and thermal behaviour. By specializing in physics-based models, we balance computational speed and accuracy to analyse performance. Our expertise extends from individual cells to large energy systems, even integrating power electronics to simulate large-scale storage systems. Combining experiments with simulations, we provide detailed insights into battery operation and can support industry partners with research solutions.
In the area of “Modelling and System Technology”, we explore the fascinating world of batteries through modelling and simulation. Our mission is to understand and improve energy storage technologies that are efficient, reliable, and sustainable.
Understanding batteries from the inside out
At the core of our work lies the desire to truly understand batteries from the microscopic to the system level. By diving into the inner workings of these systems, we aim to reveal how ions move 1, how battery degradation works 2,3 , and where losses occur during operation 4,5. Disentangling these losses is very important to improving battery efficiency, lifespan, and overall performance. 6
Our efforts go beyond just lithium-ion (Li-ion) technology. We explore and model other chemistries as well, including sodium-ion (Na-ion) 7,8 and aluminium-ion (Al-ion) batteries, which have great potential as alternative energy storage technology. Additionally, we put effort to modelling and simulation of all-solid-state systems 9, which promise to deliver safer, more compact, and energy-dense batteries.
Building better batteries through modelling and simulation
Our team creates detailed models to simulate how batteries behave under different conditions. These models help us understand not only the electrochemical processes occurring inside batteries but also their aging and thermal behaviour. Whether it’s the effect of rapid charging on a battery’s lifespan or the thermal dynamics of a system operating in extreme environments, we aim to predict and optimize every aspect of performance. 1
We specialize in physics-based battery models, which provide a detailed and accurate representation of how batteries operate. By exploring different versions of these models, we aim to balance computational speed and simulation accuracy 2,3 . This flexibility allows us to tailor our models to specific needs, from fast preliminary analyses to highly detailed studies for deeper insights.
To ensure our simulations are as accurate as possible, we perform specific experiments in the lab to parameterize and validate our models. By combining experimental data with our modelling techniques, we provide a robust framework for accurately simulating battery behaviour under all operating conditions.
From single cells to entire systems
Our expertise extends from modelling individual battery cells to simulating complex energy systems. We bridge the gap between batteries and their environments, whether it's an electric vehicle or a grid-connected system in the form of a stationary energy storage system.
This includes integrating our battery models with power electronics simulations to understand how batteries interact with inverters and the grid. By studying this interaction, we can optimize energy flow, improve system efficiency, and design solutions tailored to specific applications.
Driving innovation through collaboration
Through our comprehensive modelling efforts, we support the development of energy storage solutions that go beyond the lab. By combining simulation techniques with hands-on experiments from the lab, we tackle complex challenges and provide tailored insights. We are also open to contract research collaborations offering our expertise in modelling and simulation. Whether it’s solving a specific technical challenge or exploring new ideas together, we bring our expertise to the table to help (industry) partners achieve their goals.
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Last Modified: 09.02.2025