Philipp Oppek, M.Eng.

Philipp Oppek, M.Eng.

  • Institute for Applied Materials – Electrochemical Technologies (IAM-ET)

    Adenauerring 20b
    Gebäude 50.40
    D-76131 Karlsruhe 

Career

  • Oct. 2017 - Feb. 2021: Professional activity at Schaeffler Technologies AG & Co. KG, sub-project manager process development screen printing for PEM fuel cells.
  • Oct. 2018 - Dec. 2021: Dual master's degree in mechanical engineering (M.Eng.), Baden-Württemberg Cooperative State University & Schaeffler Technologies AG & Co. KG
    Master thesis at IAM-ET:"Experimental investigation of the influences of operating parameters on PEM fuel cells using design of experiments".
  • Dec. 2017 - Feb. 2018: Certificate program Mechanical Engineerig, Wilhelm Büchner University of Applied Sciences.
  • Oct. 2014 - Sep. 2017: Dual bachelor's degree program in mechanical engineering (B.Eng.), Baden-Wuerttemberg Cooperative State University Mannheim & Schaeffler Technologies AG & Co. KG
Stay abroad
  • Mar. 2022 - Aug. 2022: Spatially resolved measurements on PEM fuel cells at the University of Hawaii

Research topic

Research project
  • Project: Production and structure optimized metal flow field for bipolar plates (ProStroM)
  • Zellarchritektur- und Prüfstandstechnologieentwicklung zur ortsaufgelösten Charakteriserung von segmentierten Brennstoffzellen (ZaPtos)
  • Project partners: GFS Fuel Cells GmbH, Schaeffler AG, Bender GmbH, Karlsruhe University of Applied Sciences, Center for Solar Energy and Hydrogen Research Baden-Württemberg (ZSW)
Development of spatially resolved measurement technology and segmented cell housing
  • Further development and commissioning of a test bench for polymer electrolyte membrane fuel cells (PEMFCs)
  • Development of measurement technology for local application of impedance spectroscopy
  • Design of a segmented cell housing with variably adjustable contact pressure per segment
Spatially resolved characterization of PEM fuel cells
  • Electrochemical characterization of loss processes in PEMFCs along the gas channel
  • Metrological investigation of PEM fuel cells using steady-state and dynamic measurement methods (polarization curves, electrochemical impedance spectroscopy, etc.)
  • Detailed analysis of impedance spectra using distribution of relaxation times (DRT) along the gas channel
  • Spatially resolved investigation of the interaction between gas channel and active components
  • Analysis of the influence of different fuel cell components (MEA, GDL, bipolar plate, flow structures etc.) on the loss processes along the gas channel
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Segmented cell housing
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Circuit board for spatially resolved acquisition of current and voltage data
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Spatially resolved analysis of the loss processes along the gas channel

Theses

Title Type Supervisor Students Period
Spatially resolved identification and quantification of diffusion losses in PEM fuel cells Master thesis Philipp Oppek Yannick Fischer completed 05/2024
Modelling and quantification of oxygen transport processes in PEM fuel cells Master thesis Philipp Oppek / Tobias Goosmann Paulo Borges completed 10/2023
Exsitu analysis of the interaction between 3D flow field structures and gas diffusion layers of a PEMFC Bachelor thesis Philipp Oppek Yannik Dudda completed 03/2023
Spatially resolved methodology for the investigation of loss processes in PEM fuel cells Master thesis Philipp Oppek Mischa Geörg completed 12/2022
Design and commissioning of a contact resistance test system for PEM fuel cells Technician thesis Philipp Oppek Philipp Wunsch completed 06/2022

Development of a measuring device to perform spatially resolved
measurements on PEM fuel cells

 Bachelor thesis Philipp Oppek Yannick Fischer completed 03/2022

Research assistants

Responsibilities Supervisor Students Period
Development of Embedded Software for PEMFC Measurement Electronics   open  

Further development of a PEMFC test bench and spatially resolved measurement technology

 

Development of evaluation routines

 Philipp Oppek Yannick Fischer since 03/2022

Design and manufacturing of segmented fuel cells

 

Commissioning of measurement technology for spatially resolved analysis

 Philipp Oppek Mischa Geörg until 06/2022

Setup of a PEMFC test bench for spatially resolved analysis

 Philipp Oppek Marvin Dorn until 03/2022

 

Publications and Conference Contributions

Publications and Proceedings

  1. Y. Fischer, P. Oppek, A. Chuang, A. Weber, "Influence of the Clamping Force and the Formation of Liquid Water Along the Channel on the Local Diffusion Processes in PEMFCs", ECS Transactions (2024), 114, 5, 455. DOI: 10.1149/11405.0455ecst

  2. P. Oppek, S. Raab, A. Weber, "Spatially Resolved Analysis of the Influence of Three-Dimensional Flow Field Structures on Loss Processes in PEMFCs", ECS Transactions (2024), 114, 5, 427. DOI: 10.1149/11405.0427ecst

Conference Contributions

  1. Y. Fischer, P. Oppek, A. Chuang, A. Weber, "Influence of the Clamping Force and the Formation of Liquid Water Along the Channel on the Local Diffusion Processes in PEMFCs", PRiME 2024, Honolulu, 06.-11.10.2024 (talk).

  2. P. Oppek, S. Raab, A. Weber, "Spatially Resolved Analysis of the Influence of Three-Dimensional Flow Field Structures on Loss Processes in PEMFCs", PRiME 2024, Honolulu, 06.-11.10.2024 (talk).

  3. Y. Fischer, P. Oppek, S. Raab, A. Weber, „Spatially Resolved Quantification of Diffusion Losses in a Segmented PEM Fuel Cell with adjustable Clamping Forces”, 20th Symposium on Modeling Experimental Validation Trafo Baden of Electrochemical Energy Technologies (ModVal 2024), Baden, Switzerland 12.03.-14.03.2024 (talk)

  4. P. Oppek, A. Weber, „Empirical PEMFC model for local performance and resistance prediction”, 20th Symposium on Modeling Experimental Validation Trafo Baden of Electrochemical Energy Technologies (ModVal 2024), Baden, Switzerland 12.03.-14.03.2024 (talk)

  5. P. Oppek, T. Goosmann, A. Weber, „Impact of Clamping Force Distribution on Loss Processes in a Segmented PEMFC", 244th ECS meeting, Gothenburg, 08.10.-12.10.2023 (talk)

  6. T. Goosmann, P. Oppek, A. Weber, „Method for Systematic Validation of a Physically Based PEMFC Model By Spatially Resolved Impedance Measurements", 244th ECS meeting, Gothenburg, 08.10.-12.10.2023 (talk)

  7. P. Oppek, T. Goosmann, T. Reshetenko, A. Weber, „Spatial Distribution of Loss Processes Along the gas Channels of PEMFC", 27th European Fuel Cell Forum, Lucerne, 04.07.-07.07.2023 (talk)

  8. T. Goosmann, P. Oppek, S. Raab, A. Weber, „Impedance-based observation and quantification of water in PEMFCs", 27th European Fuel Cell Forum, Lucerne, 04.07.-07.07.2023 (Poster)

  9. M. Geörg, P. Oppek, A. Weber, „An impedance-based approach to derive causal relationships between operational variables in a segmented PEMFC", 27th European Fuel Cell Forum, Lucerne, 04.07.-07.07.2023 (Poster)

  10. P. Oppek, T. Goosmann, A. Weber, „Spatial Distribution of Loss Processes in PEMFC”, 19th Symposium on Fuel Cell and Battery Modelling and Experimental Validation – ModVal 19, Duisburg, 21.03.-23.03.2023 (talk)

  11. P. Oppek, M. Geörg, T. Goosmann, A. Weber, T. Reshetenko, U. Krewer, „ Spatially Resolved Deconvolution of Loss Processes in PEM Fuel Cells”, 241st ECS Meeting, Vancouver, 29.05-02.06.2022 (talk)

  12. 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.-02.06.2022 (talk)

  13. P. Oppek, T. Goosmann, J. Haußmann, A. Weber, „Methodology using design of experiments to maximize PEMFC performance”, 25th European Fuel Cell Forum, Online-Konferenz, 29.06.-02.07.2021 (talk)

  14. T. Goosmann, M. Heinzmann, P. Oppek, K. Schwab, P. Föllmer, A. Weber, "Impedance-based, spatially resolved DC-Performance Model for PEMFC", 25th European Fuel Cell Forum, Online-Konferenz, 29.06. - 02.07.2021 (Poster)