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首页> 外文会议>8th Asian Conference on Solid State Ionics: Trends in the New Millennium; Dec 15-19, 2002; Langkawi, Malaysia >POLYPYRROLE ELECTRODES AS CATHODES IN A RECHARGEABLE CELL
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POLYPYRROLE ELECTRODES AS CATHODES IN A RECHARGEABLE CELL

机译：聚吡咯电极作为可充电电池中的阴极

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摘要

A study on Li ion rechargeable cells fabricated with polypyrrole (PPy) conducting polymer cathodes is reported in this paper. The PPy was prepared by electropolymerization of pyrrole in the presence of large surfactant anion dodecylbenzene sulphonate. Polyacrylonitrile based solid polymer electrolytes containing lithium triflate and ethylene carbonate (EC) and propylene carbonate (PC) as plasticisers were used as the separators. Cycling capacities of the cells were studied using cyclic voltammetry. Continuous charge/discharge experiments were performed using a custom-made charge/discharge setup. Impedance measurements were carried out in the frequency range 1 mHz to 10 kHz to investigate the charge transfer across the electrolyte-electrode interfaces. Cyclic voltammetry studies showed that the cells have a cycling capacity close to the theoretical value at slow scan rates and the capacity was considerable even at high scan rates. According to the continuous charge/discharge results, the cells could be cycled more than 1000 times without a significant decay in cycling charge. The charge/discharge factor of the cells was close to unity.
机译：本文报道了用聚吡咯（PPy）导电聚合物阴极制造的锂离子可充电电池的研究。通过在大表面活性剂阴离子十二烷基苯磺酸盐存在下使吡咯进行电聚合来制备PPy。包含三氟甲磺酸锂和碳酸亚乙酯（EC）和碳酸亚丙酯（PC）作为增塑剂的聚丙烯腈基固体聚合物电解质用作隔板。使用循环伏安法研究细胞的循环能力。使用定制的充电/放电设置进行连续的充电/放电实验。在1 mHz至10 kHz的频率范围内进行了阻抗测量，以研究跨电解质-电极界面的电荷转移。循环伏安法研究表明，在低扫描速率下，电池的循环容量接近理论值，即使在高扫描速率下，容量也相当可观。根据连续充电/放电的结果，电池可以循环1000次以上，而循环电荷不会明显下降。电池的充电/放电因数接近于1。

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