Characterisation of liquid electrolytes by determination of physicochemical and electrochemical properties using advanced nuclear magnetic resonance techniques

Abstract

Liquid electrolytes, commonly regarded as salts or salt solutions with a boiling point below 100 °C, are increasingly finding applications in numerous fields. The relationships between the structure and molecular dynamics of liquid electrolytes have yet to be fully understood despite considerable interest in the field. The aim of the research in this thesis was to explore and identify such relationships in order to provide a basis for future design of task-specific liquids electrolytes through manipulation of their structure.The first stage of this research was to validate the experimental methodology using a simple model system, i.e., crown ethers, and the understanding attained from this model system was applied to comprehensively study more complex systems, i.e., pure ionic liquids (ILs). Finally, ILs doped with lithium hexafluorophosphate (LiPF6) salt were investigated for their suitability as battery liquid electrolytes.

Date of Award	2015
Original language	English