Abstract
Oxygen vacancies have been created in pervoskite Li3x La2/3 − x TiO3 (LLTO) materials. The presence of oxygen vacancies decrease the activation energy for lithium ion hopping in the crystalline structure and increase the ionic conductivity of the LLTO material. Strong chemical interaction occurs between the nanofibers and the polymer matrix in the composite solid-state electrolytes based on three-dimensional (3D) hydrogen treated LLTO. The composite electrolyte exhibited a high ionic conductivity at room temperature, and large electrochemical stability window of up to 5.0 V vs. Li/Li. Full cells assembled with the composite electrolyte exhibited good rate capacity and cycling performance.
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