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Recent realization of high sodium‐ion conductivities (>10−2 S cm−1) in inorganic solid electrolytes (ISEs) at room temperature will certainly trigger a boom in all‐solid‐state sodium batteries (ASS‐SBs). However, their electrochemical stable windows and compatibility to high capacity/voltage electrodes are unsatisfactory. Developing ideal ISEs that deliver high Na+ ion conductivities, good electrochemical/chemical...
A number of Pb-free BaTiO3 - Bi(Zn1/2Ti1/2)O3 solid solutions have been studied by Huang et al.. Compositions close to 0.8BaTiO3 - 0.2Bi(Zn1/2Ti1/2)O3 revealed pseudo-cubic symmetry and showed a linear dielectric response. The existence of a nearly flat temperature dependence of the relative permittivity over the temperature range of 100°C to 350°C was also obtained. In this study, the effects of...
A model for the conduction mechanism in divalent-substituted γ-BIMEVOXes, of general formula Bi 2 M x V 1-x O 5.5-(3x/2)-δ (M=divalent cation), is proposed. This model is based on the defect structure derived from combined X-ray and neutron powder diffraction studies, which show both tetrahedral and octahedral...
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