FUV spectroscopic study of electronic transitions correlated with electronic conductivity of gel electrolytes containing alkali metal ions

摘要

Li~+ ion forms complex by coordination to oxide atom in ether group of PEG. This complexes are well known as gel or solid electrolytes for Li ion battery.1 They have high safety because they didn't leak themselves. However, gel or solid electrolytes have not high ionic conductivity for use in batteries unless strictly control their conditions. Investigation of electronic states gives basic information of the material and giving hints to solve the problem. Attenuated total reflectance spectroscopic in Far Ultra-violet region (ATR-FUV) is very easy to observe electronic states of Li/PEG complex.