Technische Universität München
Lehrstuhl für Technische Elektrochemie (Prof. Gasteiger)
Lichtenbergstr. 4
85748 Garching b. München
Batteries, Electrolyzers & Fuel Cells
We focus on the development of active materials as well as on the design of electrodes for electrochemical cells.
For lithium-ion batteries, commercially available as well as novel active materials are synthesized and evaluated regarding typical degradation processes such as gas evolution, volume change, particle cracking, and resistance build-up. Furthermore, fundamental investigations towards the development of all-solid-state batteries are performed.
In the field of polymer electrolyte membrane (PEM) fuel cells and PEM electrolyzers, we work on catalyst development, stability testing under harsh degradation protocols, and the optimization of cell components (membrane electrode assemblies, diffusion media, and bipolar plates).
Via the development and application of ex-situ, in-situ, and operando diagnostics, we aim to gain new insights into performance limitations and the aging mechanisms of electro-chemical cells for energy storage & conversion applications (see research overview).
Journal of the Electrochemical Society
Abstract: Load cycling compromises the durability of proton exchange membrane fuel cells (PEMFCs), leading to a loss of the electrochemically active surface area (ECSA) of platinum in the cathode electrode.…
ACS Applied Materials and Interfaces
Abstract: Polymer electrolyte fuel cells are paramount for future emission-free mobility. One of the vital challenges for prospering commercialization of PEFCs is water management in the cells. A microporous…
Journal of the Electrochemical Society
Abstract: Unlike in the case of single-cell proton exchange membrane fuel cells (PEMFCs), implementing voltage-controlled in situ diagnostics in PEMFC stack tests is challenging, as the single cell voltage…
Journal of the Electrochemical Society
Abstract: At several occurrences in the published paper, the voltage cycling conditions were stated erroneously as "H2/air at 80 °C/100% RH"instead of the correct "H2/N2 at 80 °C/95% RH."Any voltage cycling…
Journal of the Electrochemical Society
Abstract: Highlights Inductive effects in large cells mask high-frequency features, resulting in R hf , app . Method corrects inductive artifacts to estimate true high-frequency resistance. Contact resistance…
Journal of the Electrochemical Society
Abstract: RuO2 and IrO2 have been commonly used as anode co-catalysts for mitigating cell voltage reversal damages in proton exchange membrane fuel cells (PEMFCs). We have shown previously that conventionally…
Journal of the Electrochemical Society
Abstract: Silicon anode active materials for lithium-ion batteries are becoming increasingly relevant for industrial applications. However, their material-intrinsic voltage hysteresis and voltage relaxation…
Journal of the Electrochemical Society
Abstract: The carbon support structure strongly contributes to the performance of a proton exchange membrane fuel cell (PEMFC). It is well known that the porous structure of high surface area carbons can…
Journal of the Electrochemical Society
Abstract: Determining the solid diffusion coefficient of lithium in graphite anode active materials for lithium-ion batteries is challenging due to the complex intercalation dynamics, the structural complexity,…
Journal of the Electrochemical Society
Abstract: Operating lithium-ion batteries (LIBs) to high charging cut-off potentials allows us to accommodate a further push in energy density. However, it requires a thorough understanding of the interplay and…
