Elaboration of Amorphous-Clay Hybrid: (Al<sub>2</sub>Si<sub>2</sub>O<sub>7</sub>·1/2Li<sub>2</sub>O) Designed as a Single Ion Conducting Solid Electrolyte for Li-Ion Batteries
Elaboration of Amorphous-Clay Hybrid: (Al<sub>2</sub>Si<sub>2</sub>O<sub>7</sub>·1/2Li<sub>2</sub>O) Designed as a Single Ion Conducting Solid Electrolyte for Li-Ion Batteries作者机构：Laboratory of Physics of Lamellar Hybrid Materials and Nanomaterials Department of Physics Faculty of Science of Bizerte University of Carthage Bizerte Tunisia
出 版 物：《American Journal of Analytical Chemistry》 (美国分析化学（英文）)
年 卷 期：2014年第5卷第17期
页 面：1261-1272页
主 题：Nacrite Clay Hybrid Amorphous Solid Electrolyte Lithium-Ion Battery
摘 要：Keying of lithium chloride alkali halide salt into the interlamellar space of nacrite clay mineral leads to a stable hybrid material that after calcination under inert atmosphere at 723 - 873 K induces an amorphous metahybrid. The electrochemical impedance spectroscopy (EIS) was performed to investigate the electric/dielectric properties of the hybrid with various parameters: frequency and temperature. Equivalent circuit was proposed to fit the EIS data. The experiment results show that the ionic conduction mechanism is related to the motion of Li+ cations which are thermally activated, named the hopping model. Furthermore, the resulting metahybrid obtained from dehydroxylation of the formal hybrid shows a superionic behavior with high ionic conductivity up to 10﹣2 S·m﹣1, good electrochemical stability and can be used as a solid electrolyte material for Li-ion batteries.
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