The surface behaviour of an Al-Li7La3Zr2O12 solid electrolyte

The surface structure and interfacial behaviour of Al-Li 7 La 3 Zr 2 O 12 were studied by Rietveld refinement of X-Ray Diffraction(XRD), Raman Spectra and Electrochemical Impedance Spectroscopy . It was found that Li + with different amount in Li-O octahedra on the surface of Al-Li 7 La 3 Zr 2 O 12 affects the electrochemical behaviour of the material. The increase of Li + occupancy in octahedral site can reduce the activation energy on the surface and improve the ionic conductivity of the material.