Sebastian Raab, M. Sc.
- Scientific Assistant
- Electrochemical characterization and modeling of PEM fuel cells
- Group:
Brennstoffzellen
- Room: 317
CS 50.40 - Phone: +49 721 608-47979
- sebastian raab ∂does-not-exist.kit edu
- Adenauerring 20b
76131 Karlsruhe
Research
Research project
- "Production- and structure-optimized metallic flow field for bipolar plates" (ProStroM)
- "Impedance based analysis and modeling of catalyst degradation in polymer electrolyte membrane fuel cells
Electrochemical characterization of PEM fuel cells
- Electrochemical characterization of incremental polymer electrolyte membrane fuel cells (PEMFCs)
- Development of test benches and cell housings for PEM fuel cells
- Analysis of PEM fuel cells by stationary and dynamic measuring methods (polarization curves, electrochemical impedance spectroscopy, cyclic voltammatry)
- Detailed analysis of impedance spectra by the distribution of relaxation times (DRT)
- Analysis of the influence of different fuel cell components (MEA, GDL, bipolar plates, flow fields etc.) on the cell performance
- Analysis of the influence of different three-dimensional flow field structures on the cell performance
- Application of accelerated stress tests (ASTs)
Modeling of PEM fuel cells
- Modeling based on equivalent circuit models (ECM) and transmission line models (TLM)
- Modeling of catalyst degradation
Other
since 2021 - Member of the KIT graduate school "UpGrade Mobility"
| Thesis title | Supervisor | Student | Period |
|---|---|---|---|
| Electrochemical analysis of catalyst degradation in low-temperature PEM fuel cells | as soon as possible | ||
| Optimization of operating parameters of PEM fuel cells and model parametrization | Tom Grom |
12/2022 - 07/2023 | |
| Impedance-based characterization of PEM fuel cells | Sebastian Raab |
Maximilian Gruber |
10/2021 - 01/2022 |
Student assistents
| Tasks | Supervisor | Student | Period |
|---|---|---|---|
|
Development PEMFC test bench |
Sebastian Raab | Marvin Dorn | until 03/2021 |
|
Development PEMFC test bench Automation of measurement data evaluation |
Sebastian Raab | Vivianne Bommer | since 06/2021 |
| Lecture | Typ | University lecturer |
|---|---|---|
| Batterie- und Brennstoffzellensysteme | Lecture (V) | Dr.-Ing. Andre Weber |
Publications and Conferences
Journal Paper and Conference Proceedings
-
S. Raab and A. Weber, “Deconvolution of Gas Diffusion Processes in Incremental Polymer Electrolyte Membrane Fuel Cells”, 27th European Fuel Cell Forum (EFCF), Proceedings (2023).
-
S. Raab and A. Weber, “Dynamic characterization of incremental PEM Single cells at high relative humidities”, 25th European Fuel Cell Forum (EFCF), Proceedings (2021).
Conferences
-
S. Raab and A. Weber, „Deconvolution of Gas Diffusion Processes in Incremental Polymer Electrolyte Membrane Fuel Cells”, 27th European Fuel Cell Forum (EFCF), 04.07.2023 - 04.07.2023 (Presentation)
-
S. Raab, T. Grom, A. Weber, „Optimization of electrochemical model parametrization for incremental PEMFCs”, ModVal Conference, Duisburg, 21.03.2023 - 23.03.2023 (Poster)
-
S. Raab, T. Goosmann, A. Weber, „Influence of three- dimensional flow field structures consisting of expanded metal meshes on the physicochemical loss processes in PEMFCs”, 241st ECS Meeting, Vancouver, 29.05.2022 - 02.06.2022 (Presentation)
-
T. Goosmann, S. Raab, P. Oppek, A. Weber, E. Ivers-Tiffée, „Impedance-Based, Multi-physical DC-Performance-Model for a PEMFC Stack”, 241st ECS Meeting, Vancouver, 29.05.2022 - 02.06.2022.
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S. Raab and A. Weber, “Dynamic characterization of incremental PEM Single cells at high relative humidities”, 25th European Fuel Cell Forum (EFCF), 29.06.2021 - 02.07.2021 (Presentation)