Lithium-ion transfer at the interface between lithium-ion conductive ceramic electrolyte and liquid electrolyte - A key to enhancing the rate capability of lithium-ion batteries

In this study, lithium-ion transfer through the electrode/electrolyte interface was examined using a model interface composed of a lithium-ion-conductive ceramic and liquid electrolytes to focus on lithium-ion transfer. Lithium-ion transfer resistances at the interface and their activation energies were evaluated by impedance spectroscopy. The activation energies were quite large and consistent with the interaction between lithium-ion and solvents in an electrolyte as determined by a theoretical calculation. (c) 2005 The Electrochemical Society.