Ionic conductance of composite electrolytes based on network polymer with ceramic powder
Ionic conductance of composite electrolytes based on network polymer with ceramic powder
复制标题
DOI：
10.1016/j.ssi.2006.01.022
复制
发表时间：
2006-03-15
影响因子：
3.2
通讯作者：
Ishikawa, M
中科院分区：
文献类型：
--
作者：
Morita, M;Noborio, H;Ishikawa, M
研究了陶瓷填料（α-Al_2 O_3、γ-Al_2 O_3和BaTiO_3）对聚氧乙烯改性聚甲基丙烯酸酯（PEO-PMA）与二（三氟甲基磺酰）亚胺锂、Li（CF（3）SODA和陶瓷粉组成的高分子复合物离子电导的影响。陶瓷粉末的加入增加了在环境温度范围内的离子电导率。在333 K（60 ℃）下，复合材料的电导率为4.9 × 10（-5）S cm（-1），其中复合材料的质量分数为15%。通过光聚合制备α-Al 2 O 3。不同聚合方法的最佳Al_2O_3含量不同。对于含有5 wt.%通过热聚合制备的α-或γ-Al 2 O 3。陶瓷填料的加入几乎不影响聚合物基体的热性能。XRD和NMR实验表明，α-Al 2 O3的加入提高了复合材料的离子迁移率。添加少量的铁电BaTiO 3也增加了聚合物复合物的离子电导率，但其程度小于添加Al 2 O 3的情况。(c)2006 Elsevier B. V.保留所有权利。
Effects of ceramic fillers (alpha-Al2O3, gamma-Al2O3 and BaTiO3) have been investigated on the ionic conductance of polymeric complexes consisting of poly(ethylene oxide)-modified poly(methacrylate) (PEO-PMA) and lithium bis(trifluoromethylsulfonyl)imide, Li(CF(3)SODA and ceramic powder. The addition of ceramic powder increased the ionic conductivity over an ambient temperature range. Conductivity of 4.9 x 10(-5)S cm(-1) at 333K (60 degrees C) was obtained for the composite containing 15wt.% alpha-Al2O3 prepared by photo-polymerization. The optimum content of Al2O3 was different among the methods of polymerization. The highest conductivity was obtained for the composite containing 5 wt.% of alpha-, or gamma-Al2O3 prepared by thermal polymerization. The addition of the ceramic filler scarcely influenced the thermal properties of the polymer matrix. XRD and NMR experiments showed that the ionic mobility could be enhanced in the composites by addition of alpha-Al2O3. The addition of small amounts of ferroelectric BaTiO3 also increased the ionic conductivity of the polymeric complex, but its extent was smaller than the case of the Al2O3 addition. (c) 2006 Elsevier B.V. All rights reserved.