André Leonide

André Leonide

Prof. Dr.-Ing.

Curriculum vitae

Since 09/2022

Professor for Materials of Electrical and Electronic Engineering at Nuremberg Institute of Technology.

08/2011 - 08/2022

Scientist and Project Manager at Siemens AG within the Corporate Core Function Technology in Erlangen:

  • Planning, implementation and management of large public funded joint research projects (e.g. EU, BMWi) in the field of energy storage and smart grids.
  • Execution of audits and consulting projects including technology assessment in various business units.
  • Characterization and development of Solid Oxide Electrolyzer Cells.
  • Development of large-scale electrochemical high-temperature energy storage devices.

03/2010 – 07/2011

Senior Scientist at Karlsruhe Intitute of Technology (KIT):

  • Experimental modelling of electrochemical systems (batteries and fuel cells) by means of electrochemical impedance spectroscopy and distribution of relaxation times (DRT) analysis.

02/2010

Doctoral degree (Dr.-Ing.) at KIT, with the dissertation entitled “Modelling and Parameter Identification by means of Impedance Spectroscopy”.

04/2006 – 02/2010

Research Scientist at KIT:

  • Experimental modelling of anode-supported solid oxide fuel cells (single cells) by means of electrochemical impedance spectroscopy and distribution of relaxation times (DRT) analysis.
  • Managing various third-party funded projects with partners from industry and accademia.

 09/2005

Dipl.-Ing. (German “M.Sc.”) degree in Electrical Engineering at KIT,
Main Field: Material Science.

10/1998 - 09/2005

Electrical Engineering Studies at KIT.

Awards
  • Hermann Göhr Best Paper & Best Presentation Award at the 10th European SOFC Forum in Lucerne (2012) for the keynote lecture entitled “Electrochemical Impedance Spectroscopy: A Key Tool for SOFC Development” (together with E. Ivers-Tiffée and A. Weber from KIT).
  • Christian Friedrich Schönbein Contribution to Science Medal 2010 for the outstanding scientific work entitled “Excellent electrochemical performance with thin YSZ electrolyte for IT-SOFCs” (together with F. Han, H. P. Buchkremer and. T. Van Gestel from FZJ).
  • Friedrich and Elisabeth Boysen Foundation Award for the outstanding dissertation entitled “Modelling and Parameter Identification by means of Impedance Spectroscopy”, Karlsruhe 2010.
Memberships

Absolventen- und Förderverein der Fakultät Werkstofftechnik der Technischen Hochschule Nürnberg Georg Simon Ohm e.V.

Teaching areas

Materials of Electrical and Electronic Engineering

Research

Experimental modelling of electrochemical systems (batteries and fuel cells):

  • Characterisation of electrical and electrochemical reactions and transport processes.
  • System-identification by means of electrochemical impedance spectroscopy and distribution of relaxation times (DRT) analysis.
  • Physics-based modelling of fuel cells and batteries.
Courses
  • Measurement and Electrical Engineering (lecture, exercise and laboratory course).
  • Materials of Electrical and Electronic Engineering (lecture and laboratory course).
Publications

h-index: 23 (Source: Scopus® Database, January 2025)

 Scientific Publications:

  1. R. André, A. Leonide, K. Kandasamy, E. Naghiyev, S. Langemeyer, C. Gouveia, A. Dentel, C. Murphy-O'Connor, O. Kilkki, "Energy Storage and Energy Management in Distribution Grids, Communities and Buildings: Results from SENSIBLE, a Flagship Project", Proc. of the 25th International Conference on Electricity Distribution (CIRED 2019), paper no. 1769 (2019).

  2. H. Borcherding, J. Austermann, T. Kuhlmann, B. Weis, A. Leonide,"Concepts for a DC network in industrial production", 2017 IEEE 2nd International Conference on Direct Current Microgrids (ICDCM), art. no. 8001049, pp. 227-234 (2017).

  3. D. Klotz, A. Leonide, A. Weber, E. Ivers-Tiffée, "Electrochemical model for SOFC and SOEC mode predicting performance and efficiency", Int. J. Hydrog. Energy, 39 (35), pp. 20844-20849 (2014).

  4. A. Leonide, W. Drenckhahn, H. Greiner, H. Landes, "Long term operation of rechargeable high temperature solid oxide batteries", J. Electrochem. Soc., 161 (9), pp. A1297-A1301 (2014).

  5. J.-C. Njodzefon, D. Klotz, A. Leonide, A. Kromp, A. Weber, E. Ivers-Tiffée, "Electrochemical studies on anode supported solid oxide electrolyzer cells", ECS Trans.41 (33), pp. 113-122 (2012).

  6. A. Kromp, S. Dierickx, A. Leonide, A. Weber, E. Ivers-Tiffée, "Electrochemical analysis of sulphur-poisoning in anode-supported SOFCs under reformate operation", ECS Trans.41(33), pp. 161-169 (2012).

  7. H. Zhu, A. Kromp, A. Leonide, E. Ivers-Tiffée, O. Deutschmann, R. J. Kee, "A model-based interpretation of the influence of anode surface chemistry on solid oxide fuel cell electrochemical impedance spectra", J. Electrochem. Soc., 159 (7), pp. F255-F266 (2012).

  8. W. Drenckhahn, H. Greiner, M. Kühne, H. Landes, A. Leonide, K. Litzinger, C. Lu, C. Schuh, J. Shull, T. Soller, "A novel high temperature metal-air battery", ECS Trans.50(45), pp. 125-135 (2012).

  9. F. Han, R. Mücke, T. Van Gestel, A. Leonide, N. H. Menzler, H. P. Buchkremer, D. Stöver, "Novel high-performance solid oxide fuel cells with bulk ionic conductance dominated thin-film electrolytes", J. Power Sources218, pp. 157-162 (2012).

  10. A. Kromp, S. Dierickx, A. Leonide, A. Weber, E. Ivers-Tiffée, "Electrochemical analysis of sulfur-poisoning in anode supported SOFCs fuelled with a model reformate", J. Electrochem. Soc., 159 (5), pp. B597-B601 (2012).

  11. A. Leonide, A. Weber, E. Ivers-Tiffeé, "Electrochemical analysis of biogas fueled anode supported SOFC", ECS Trans.35, pp. 2961-2968 (2011).

  12. Q. Ma, F. Tietz, A Leonide, E. Ivers-Tiffée, "Impedance Studies on Solid Oxide Fuel Cells with Yttrium-Substituted SrTiO3 Ceramic Anodes", ECS Trans.35, pp. 1421-1433 (2011).

  13. A. Kromp, A. Leonide, A. Weber, E. Ivers-Tiffée, "Hydrogen Oxidation Kinetics in Reformate-Fuelled Anode Supported SOFC", ECS Trans., 35, pp. 665-678 (2011).

  14. E. Ivers-Tiffée, J. Hayd, D. Klotz, A. Leonide, F. Han, A. Weber, "Performance Analysis and Development Strategies for Solid Oxide Fuel Cells", ECS Trans.35 , pp. 1965-1973 (2011).

  15. R. Mücke, O. Büchler, M. Bram, A. Leonide, E. Ivers-Tiffée, H.P. Buchkremer, "Preparation of functional layers for anode-supported solid oxide fuel cells by the reverse roll coating process", J. Power Sources196, pp. 9528-9535 (2011).

  16. A. Leonide, S. Hansmann, A. Weber, E. Ivers-Tiffée, "Performance simulation of current/voltage-characteristics for SOFC single cell by means of detailed impedance analysis", J. Power Sources, 196 (17), pp. 7343-7346 (2011).

  17. A. Utz, A. Leonide, A. Weber, E. Ivers-Tiffée, "Studying the CO - CO2 characteristics of SOFC anodes by means of patterned Ni anodes", J. Power Sources196 (17), pp. 7217-7224 (2011).

  18. C. Endler-Schuck, A. Leonide, A. Weber, S. Uhlenbruck, F. Tietz, E. Ivers-Tiffée, "Performance analysis of mixed ionic-electronic conducting cathodes in anode supported cells ", J. Power Sources196 (17), pp. 7257-7262 (2011).

  19. M. Kornely, A. Leonide, A. Weber, E. Ivers-Tiffée, " Performance limiting factors in anode-supported cells originating from metallic interconnector design ", J. Power Sources196(17), pp. 7209-7216 (2011).

  20. M. Kornely, A. Neumann, N. H. Menzler, A. Leonide, A. Weber, E. Ivers-Tiffée, "Degradation of anode supported cell (ASC) performance by Cr-poisoning", J. Power Sources196 (17), pp. 7203-7208 (2011).

  21. P. Blennow, J. Hjelm, T. Klemenso, S. Ramousse, A. Kromp, A. Leonide, A. Weber, "Manufacturing and characterization of metal-supported solid oxide fuel cells", J. Power Sources, 196 (17), pp. 7117-7125 (2011).

  22. Q. Ma, F. Tietz, A. Leonide, E. Ivers-Tiffée, "Electrochemical performances of solid oxide fuel cells based on Y-substituted SrTiO3 ceramic anode materials", J. Power Sources196 (17), pp. 7308-7312 (2011).

  23. E. Ivers-Tiffée, A. Leonide, A. Weber, "Performance analysis and development strategies for solid oxide fuel cells", IOP Conf. Ser.: Mater. Sci. Eng. 18 132001 (2011).

  24. A. Kromp, A. Leonide, A Weber, E Ivers-Tiffée, "Electrochemical analysis of reformate-fuelled anode supported SOFC", J. Electrochem. Soc.158 (8), pp. B980-B986 (2011).

  25. D. Klotz, B. Butz, A. Leonide, J. Hayd, D. Gerthsen, E. Ivers-Tiffée, "Performance enhancement of SOFC anode through electrochemically induced Ni/YSZ nanostructures", J. Electrochem. Soc.158 (6), pp. B587-B595 (2011).

  26. Q. Ma, F. Tietz, A. Leonide, E. Ivers-Tiffée, "Anode-supported planar SOFC with high performance and redox stability", Electrochemistry Communications, 12 (10), pp. 1326-1328, (2010).

  27. C. Endler, A. Leonide, B. Rüger, A. Weber, E. Ivers-Tiffée, "Oxygen surface exchange and bulk diffusion coefficients evaluated from porous mixed ionic-electronic conducting cathodes", ECS Trans.28, pp. 71-80 (2010).

  28. D. Klotz, B. Butz, A. Leonide, D. Gerthsen, E. Ivers-Tiffée, "Increase of anode performance of SOFC by reverse current treatment", ECS Trans.28, pp. 141-150 (2010).

  29. A. Kromp, A. Leonide, H. Timmermann, A. Weber, E. Ivers-Tiffée, "Internal reforming kinetics in SOFC-anodes", ECS Trans. 28, pp. 205-215 (2010).

  30. A. Leonide, S. Hansmann, E. Ivers-Tiffée, "A 0-dimensional stationary model for anode-supported solid oxide fuel cells", ECS Trans.28, pp. 341-346 (2010).

  31. A. Utz, H. Störmer, A. Leonide, A. Weber, E. Ivers-Tiffée, "Degradation and relaxation effects of Ni patterned anodes in H2/H2O atmosphere", J. Electrochem. Soc.157 (6), pp. B920-B930 (2010).

  32. C. Endler, A. Leonide, A. Weber, F. Tietz, E. Ivers-Tiffee, "Time-dependent electrode performance changes in intermediate temperature solid oxide fuel cells", J. Electrochem. Soc.157 (2), pp. B292-B298 (2010).

  33. A. Leonide, B. Rüger, A. Weber, W. A. Meulenberg, E. Ivers-Tiffée, "Impedance study of alternative (La,Sr)FeO3-δ and (La,Sr)(Co,Fe)O3-δ MIEC Cathode Compositions", J. Electrochem. Soc., 157 (2), pp. B234-B239 (2010).

  34. C. Endler, A. Leonide, A. Weber, E. Ivers-Tiffée, F. Tietz, "Long-term study of MIEC cathodes for intermediate temperature solid oxide fuel cells", ECS Trans.25, pp. 2381-2390 (2009).

  35. D. Klotz, A. Leonide, E. Ivers-Tiffée, "Recovery of anode performance by reverse current treatment", ECS Trans.25, pp. 2049-2056 (2009).

  36. A. Utz, H. Störmer, A. Leonide, A. Weber, E. Ivers-Tiffée, "Degradation Effects of Ni Patterned Anodes in H2/H2O Atmosphere", ECS Trans. 25, pp. 2013-2021 (2009).

  37. M. Kornely, A. Leonide, A. Weber, E. Ivers-Tiffée, "Impact of flowfield design on solid oxide fuel cell performance", ECS Trans.25, pp. 815-824 (2009).

  38. A. Leonide, B. Rüger, A. Weber, W. A. Meulenberg, E. Ivers-Tiffée, "Performance Study of Alternative (La,Sr)FeO3-δ and (La,Sr)(Co,Fe)O3-δ MIEC Cathode Compositions", ECS Trans. 25, pp. 2487-2496 (2009).

  39. A. Leonide, Y. Apel, E. Ivers-Tiffée, "SOFC modeling and parameter identification by means of impedance spectroscopy", ECS Trans., 19 (20), pp. 81-109 (2009).

  40. V. Sonn, A. Leonide, E. Ivers-Tiffée, "Combined deconvolution and CNLS fitting approach applied on the impedance response of technical Ni/8YSZ cermet electrodes", J. Electrochem. Soc.155 (7), pp. B675-B679 (2008).

  41. A. Leonide, V. Sonn, A. Weber, E. Ivers-Tiffée, "Evaluation and modeling of the cell resistance in anode-supported solid oxide fuel cells", J. Electrochem. Soc., 155 (1), pp. B36-B41 (2008).

  42. V. Sonn, A. Leonide, E. Ivers-Tiffée, "Towards understanding the impedance response of Ni/YSZ anodes", ECS Trans.7, pp. 1363-1372 (2007).

  43. A. Leonide, V. Sonn, A. Weber, E. Ivers-Tiffée, "Evaluation and modelling of the cell resistance in anode supported solid oxide fuel cells", ECS Trans.7, pp. 521-531 (2007).

Books and Book Chapter:

  1. A. Leonide, A. Sauer, Vorwort zum Buch "Die Gleichstromfabrik", A. Sauer (Hrsg.), Carl Hanser Verlag (2020).

  2. E. Ivers-Tiffée, A. Leonide, H. Schichlein, V. Sonn, A. Weber, "Impedance Spectroscopy for High-Temperature Fuel Cells", in D. Stolten, B. Emonts (Eds.), Fuel Cell Science and Engineering, Vol. 1, Weinheim, Wiley-VCH, pp. 441-467 (2012).

  3. A. Leonide, "SOFC Modelling and Parameter Identification by means of Impedance Spectroscopy”, Dissertation, KIT Scientific Publishing (2010), ISBN: 978-3-86644-538-3, digitaler Vollzugriff unter: http://digbib.ubka.uni-karlsruhe.de/volltexte/1000019173.

  4. E. Ivers-Tiffée, H. Timmermann, A. Leonide, N. H. Menzler, J. Malzbender, "Methane reforming kinetics, carbon deposition, and redox durability of Ni/8 yttria-stabilized zirconia (YSZ) anodes", in W. Vielstich, H. Yokokawa, and H. A. Gasteiger (Eds.), Handbook of Fuel Cells - Fundamentals, Technology and Applications, Vol. 6, Chichester: John Wiley & Sons Ltd, pp. 933-956 (2009).

Invited oral Presentations:

  1. A. Leonide, "Grußwort und Teilnahme an Podiumsdiskussion", DC 2019 – Industrielle Gleichstromnetze, Future Energy – Institut für Energieforschung, Phoenix Contact Arena Kongresscentrum Lemgo (Deutschland), 10.-11.09.2019.

  2. A. Leonide, "DC-INDUSTRIE: Intelligentes offenes DC-Netz in der Industrie", Integrated Energy Plaza, HANNOVER MESSE 2017, Deutsche Messe AG, Hannover, 28. April 2017 (Impulsvortrag und Teilnahme an Podiumsdiskussion).

  3. A. Leonide, "DC-INDUSTRIE: Gleichspannungsversorgung in Maschinen und Anlagen", Tagung Gleichspannung in der Produktion, Fraunhofer Institut für Produktionstechnik und Automatisierung (IPA), Stuttgart (Deutschland), 15.03.2017.

  4. A. Leonide, "Electrochemical Impedance Spectroscopy as a Diagnostic Tool for Fuel Cells and Batteries. Quo Vadis?", Electrochemistry Workshop 2014, Monterey Bay (California, USA), 06.07.-09.07.2014.

  5. A. Leonide, A. Weber, V. Sonn, E. Ivers-Tiffée, "Impedance Spectroscopy as a Diagnosis Tool for Stacks and Systems (SOFC)", European Energy Research Alliance (EERA) Workshop 2013, European Fuel Cell Conference & Exhibition, Rom (Italien) 10.‑13.12.2013 (Keynote).

  6. A. Leonide, W. Drenckhahn, H. Greiner, H. Landes, "Long Term Operation of Rechargeable High Temperature Solid Oxide Batteries", Solid State Electrochemistry Workshop 2013, Heidelberg (Deutschland), 22.07.-24.07.2013.

  7. A. Leonide, A. Weber, E. Ivers-Tiffée "Electrochemical Impedance Spectroscopy: A Key Tool for SOFC Development”, Solid State Electrochemistry Storage and Conversion Workshop 2012, Institut für Angewandte Mathematik, Universität Heidelberg, Heidelberg (Deutschland), 16. - 18. Juli 2012.

  8. A. Leonide, A. Weber, E. Ivers-Tiffée "Electrochemical Impedance Spectroscopy: A Key Tool for SOFC Development”, 10th European SOFC Forum, Luzern (Schweiz) 2012 (Keynote).