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首页> 外文期刊>Journal of Applied Polymer Science >Ionically Conductive Polymer Gel Electrolytes Prepared from Vinyl Acetate and Methacrylate for Electric Double Layer Capacitor
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Ionically Conductive Polymer Gel Electrolytes Prepared from Vinyl Acetate and Methacrylate for Electric Double Layer Capacitor

机译：由醋酸乙烯酯和甲基丙烯酸酯制备的用于双电层电容器的离子导电聚合物凝胶电解质

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摘要

In order to obtain highly conductive polymer electrolytes for an electric double layer capacitor, three kinds of polymer gel electrolytes were prepared. Vinyl acetate (VAc) and methyl methacrylate (MMA) were copolymerized with divinyl adipate (DA) and ethylene glycol dimethacrylate (EGDMA), respectively, in propylene carbonate (PC) containing tetraethylammonium tetrafluoroborate (TEATFB) to form network polymer gel electrolytes. MMA was also copolymerized with butylene glycol DMA for comparison. The polymer gel electrolytes obtained were characterized by means of thermogravimetry, complex impedance analysis, and cyclic voltammetry for use in the electric double layer capacitor. The ionic conductivities of the polymer gel electrolytes were dependent on the TEATFB concentration, temperature, and crosslinking degree. The polymer gel electrolytes in the VAc-DA system exhibted higher room temperature conductivities (10~(-2) S/cm) than those in the MMA-EGDMA system. Further, the polymer gel electrolytes in the VAc-DA system showed good electrochemical stability windows ranging from -4.0 to 4.0 V versus Ag. Thermal analysis revealed that the polymer gel electrolytes in both systems were stable up to 150deg C.
机译：为了获得用于双电层电容器的高导电性聚合物电解质，制备了三种聚合物凝胶电解质。将乙酸乙烯酯（VAc）和甲基丙烯酸甲酯（MMA）与己二酸二乙烯酯（DA）和乙二醇二甲基丙烯酸酯（EGDMA）分别在含有四氟硼酸四乙铵（TEATFB）的碳酸亚丙酯（PC）中共聚，以形成网络聚合物凝胶电解质。为了比较，MMA也与丁二醇DMA共聚。通过热重法，复阻抗分析和用于双电层电容器的循环伏安法表征获得的聚合物凝胶电解质。聚合物凝胶电解质的离子电导率取决于TEATFB的浓度，温度和交联度。 VAc-DA系统中的聚合物凝胶电解质比MMA-EGDMA系统具有更高的室温电导率（10〜（-2）S / cm）。此外，VAc-DA系统中的聚合物凝胶电解质相对于银表现出良好的电化学稳定性窗口，范围为-4.0至4.0V。热分析表明，两种体系中的聚合物凝胶电解质在高达150°C的温度下都是稳定的。

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