IEK-1 – Werkstoffsynthese und Herstellungsverfahren
Area of research:
Diploma & Master Thesis
Contract time limit:
Start of work: as soon as possible/by arrangement
Background and Project Description:All-solid-state Li-ion batteries (ASSBs) with metallic Li anodes and solid electrolytes attract increasing attention as a future energy storage technology, as they can provide superior energy density and overcome safety concerns of conventional Li-ion batteries. High chemical and thermal stability and electrochemical inertness in a wide potential window, particularly its stability against Li metal, make garnet-type Li-ion conducting oxides (LLZO, Ia3d cubic structure) promising candidates to be used as solid electrolytes in next generation Li batteries. Layered transition metal oxides, such as LiCoO2 (LCO, trigonal space group R-3m), have been among the most attractive cathode materials for lithium ion batteries due to their relatively high theoretical specific and volumetric capacity, low self-discharge, high discharge voltage, and good cycling performance.
However the key limiting factor for the current advancement of solid-state batteries is ascribed to a high internal resistance for lithium-ion transfer over the solid-solid electrode-electrolyte interfaces, negatively affecting electrochemical performance of ASSBs and reducing cycle life.
The proposed project focuses on the effect of crystallographic orientation of electrolyte and electrode on the Li+-transport properties in all-solid-state LLZO/LCO-based Li-batteries. These investigations will provide fundamental information about the texture-property relationships at the electrode-electrolyte interfaces as well as contribute to the development both of bulk and thin film LCO/LLZO-based ASSBs.
- Excellent academic marks in materials science, chemistry, chemical engineering, physics or related fields of study
- High individual motivation, self-reliant and analytical way of working
- A pleasant working environment within a highly competent, international team in one of the most prestigious research facilities in Europe
- An excellent scientific and technical infrastructure
- You will be supported by top-end scientific and technical infrastructure as well as close guidance by experts
- The master thesis/internship is remunerated.
We are looking forward to receiving your application!