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: Reducing the platinum (Pt) loading in proton exchange membrane fuel cell (PEMFC) cathodes generally results in substantial voltage losses, primarily due to increased overpotentials for the oxygen…
Chemistry of Materials
Abstract: Exposure of cathode active materials (CAMs) to ambient air is particularly detrimental for Ni-rich CAMs, leading to accelerated performance degradation. Upon storage, H2O and CO2 from ambient air…
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: While silicon can significantly enhance the energy density of lithium-ion battery (LiB) anodes, its volume expansion of +280% in the fully lithiated Li15Si4 state and the resulting poor cycle life…
Journal of the Electrochemical Society
Abstract: Cationic contaminants in the membrane electrode assembly (MEA) of a proton-exchange membrane (PEM) fuel cell result in substantial, generally considered irreversible performance losses. Here, we show…
Journal of the Electrochemical Society
Abstract: In this work, three commercial, titanium fiber- or powder-based porous transport layers (PTLs) for polymer electrolyte membrane water electrolysis (PEMWE) are characterized in terms of pore size,…
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: IrO2 is widely used as an anode co–catalyst in proton exchange membrane fuel cells (PEMFCs) to mitigate cell reversal (CR) induced damages. In this study, two types of IrO2 anode co–catalysts with…
