Suchen
Battery Materials and Diagnostics Group
Our goal is to develop novel materials and to improve existing materials for Li-ion, Li-S, and exotic (Na, Mg, Ca, etc...) batteries. We apply different synthetic routes, such as sol-gel chemistry, mechanosynthesis, solid state synthesis under various controlled atmospheres, and microwave synthesis to control the morphology and obtained the most promising electrochemical performances of a dedicated systems.
Publications 2016
Electrochemistry Laboratory (LEC)
Publications
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LEC Seminar Archive
Die Seminare finden im Raum ODRA/111 jeweils am Mittwoch um 11:00 Uhr statt. Externe Gäste (ausserhalb des PSI) sind willkommen, werden aber gebeten, sich im Labor-Sekretariat bei Frau Cordelia Gloor unter Tel.: +41 56 310 2919 oder per e-mail anzumelden. Lectures take place in room ODRA/111 on every Wednesday at 11:00 am. External guests (from outside PSI) are welcome, but are requested to register with our secretary Cordelia Gloor at phone: +41 56 310 2919 or via e-mail.
Publications 2015
Electrochemistry Laboratory (LEC)
Operando X-ray photoelectron spectroscopy, to monitor the chemical and electronic interface evolution in all-solid-state batteries
Degradation of the solid-electrolyte interface occurring during cycling is currently one of the most challenging issues for the development of all-solid-state batteries. Here we designed a unique electrochemical custom made cell for operando X-ray photoelectron spectroscopy (XPS) capable of maintaining high mechanical pressure with reliable electrochemistry and able to monitor in real-time the surface (electro-)chemical reactivity at the interfaces between the different composite.
Post mortem/operando XPEEM: for studying the surface of single particle in Li-ion battery electrodes
X-ray photoemission electron microscopy (XPEEM) with its excellent spatial resolution is a well-suited technique to elucidate the complex electrode-electrolyte interface reactions in Li-ion batteries. It provides element-specific contrast images and enables the acquisition of local X-ray absorption spectra on single particles. Here we demonstrate the strength of post mortem measurements and we show the first electrochemical cell dedicated for operando experiments in all-solid-state batteries.