The interface between lithium and poly(ethylene-oxide)
Ac impedance spectroscopy was applied to the study of the interfacial properties of lithium metal exposed to pure tetraethylene glycol dimethyl ether. In the reaction between the solvent and lithium a passivating film is formed on the metal. A protective character of the films was also illustrated for electrodeposited lithium layers using the electrochemical quartz microbalance (EQMB) method.