Marc Paulus

 

NMR spectroscopic investigation of the solid-state Li-ion conductor Li10GeP2S12

The development of novel and improved battery systems is becoming increasingly important for the future, particularly with regard to electric mobility and temporary storage of surpluses from electricity production. In this case the trend is moving more and more to All Solid-State batteries due to the higher safety and durability compared to batteries with liquid electrolytes. A problem in solid-state electrolytes was usually the slow ionic conduction but there are now solid-state electrolytes, such as Li10GeP2S12 (LGPS) whose conductivity is in the range of liquid electrolytes. Therefore the aim of this Master thesis is to investigate the lithium ion conductor LGPS by NMR spectroscopy to elucidate the origin and the properties of the fast lithium migration and additionally to develop individually the applied NMR methods.