The Role of TiO2 Anatase Nano-Filler to Enhance the Physical and Electrochemical Properties of PVA-Based Polymer Electrolyte for Magnesium Battery Applications
The Role of TiO2 Anatase Nano-Filler to Enhance the Physical and Electrochemical Properties of PVA-Based Polymer Electrolyte for Magnesium Battery Applications作者机构：Physics Department Faculty of Science Benha University Benha 13518 Egypt Physics Department Faculty of Science Tabuk University KSA Department of Materials Science Graduate School of Engineering Osaka Prefecture University Sakai Osaka 599-8531 Japan
出 版 物：《材料科学与工程（中英文A版）》 (Journal of Materials Science and Engineering A)
年 卷 期：2013年第3卷第10期
页 面：678-689页
学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
主 题：固态聚合物电解质 纳米填料 二氧化钛 锐钛矿型 镁电池 PVA 电化学性能 扫描电子显微镜
摘 要：The magnesium conducting solid-state polymer electrolyte PE comprising hybrid of poly(vinyl alcohol) (PVA) and magnesium bromide MgBr 2, phosphomolbidic acid (PMA) H 3 PMo 12 O 40, and tetraethylene glycol dimethyl ether (TEGDME) as plasticizer and TiO 2 anatase as a nano-filler is prepared at various compositions by solution cast technique. The interactions between the filler and PE chains are studied by thermal gravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM), and impedance spectroscopy. Composition of PE is optimized, and maximum conductivity is obtained at 6 wt.% TiO 2 anatase. Filler seems to increase the number of free magnesium cations by de-coordinating the bond between magnesium cations and matrix scheme. The estimated value of Mg + ion transference number is carried out by the combination of complex impedance and D. C. polarization methods and is found to be 0.52 for the highest conducting film. A solid state battery based on the above polymer electrolyte with a configuration Mg|PE|TiO 2 has exhibited a discharge capacity 8.5 mAh/gm. The discharge characteristics are found to be satisfactory as a laboratory cell.
维普期刊数据库