Fraunhofer IZM
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Role
Junior Researcher
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Location
Berlin, Germany
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Year
2018
At Fraunhofer IZM’s RF & Smart Sensor Systems department, I worked with the Microenergy Systems team to characterise micro-alkaline manganese, zinc-air, and lithium-ion batteries. A key focus of my work was the analysis and interpretation of impedance spectra, where I extracted fit parameters to compare the performance of different battery prototypes.
Microbattery Testing and Performance Analysis
Fraunhofer IZM’s advanced lab environment allowed me to deepen my understanding of electrochemical impedance spectroscopy (EIS), which I applied to test both primary and secondary cells. I optimised device settings and measurement protocols to improve data quality. A key part of the project involved processing large datasets of impedance spectra to extract fit parameters and evaluate battery performance. My analysis contributed to the lab’s mission of developing high-performance microbatteries for smart sensors and miniaturised electronics.
Technical Focus Areas
Throughout my time at Fraunhofer IZM, I engaged in both hands-on experimentation and in-depth data analysis. While the details of specific projects are confidential, the following areas reflect the scope of my technical work.
Why It Mattered
Fraunhofer IZM taught me to approach science with both precision and perspective. Working with microbatteries showed me that attention to detail at any scale is essential to creating things that work — and last. This experience deepened my appreciation for clean data, reproducible methods, and systematic problem solving.