3 Jobs gefunden in Garching

The project focuses on the investigation of the role of phonons in lithium ion transport in rare earth halide lithium conductors. These materials are studied for the use as solid electrolytes and are actively developed for a new generation of electrochemical energy storage. The major focus of the PhD thesis will be the elucidation of the migration mechanism in superionic conductors in the Li3MCl6 (M=rare-earth, Sc, Y, In, etc.) family of compounds. The research work includes the sample preparation using a combination of ball - milling, wet - and solid state synthesis and corresponding characterisation. Temperature-resolved neutron and x-ray scattering (synchrotronbased) techniques will be determine the short- and long-range order in these materials. The phases, structural stability and details of atomic vibrations will be correlated to the transport properties, i.e. ionic conductivity, and the obtained results will be used as input for the optimization of the electrolyte compositions, in DFT modelling as well as in operando electrochemical electrolyte testing.