Development of Thermostable Polymer Battery with Large Capacity

为了提高聚吡咯（PPy）的电子电导率的热稳定性，引入了一系列具有酸型取代基的芳香族磺酸盐衍生物，如-COGH、-OH和SO_3H。这些掺杂剂掺杂的聚吡咯显示出优异的热稳定性，其导电性，即使在150 ℃的空气中。特别是，2-羟基-5-磺基苯甲酸提供了最高的热稳定性。与掺杂对甲基苯甲酸的PPy相比，掺杂的PPy即使在150 ° C下在空气中加热8小时后仍保持其初始电导率的95%，并且显示出20倍的高稳定性，以对抗125 ° C下1000小时的长期加热。通过从酸性基团提供质子来形成共轭结构。氘代聚吡咯的红外光谱证实了这种质子补充，它们可用作电池和电容器的电极材料。使用掺杂抗氧化掺杂剂的PPy的电容器在空气中的高温下长期提供高可靠性，具有良好的高频特性。

In order to improve the thermal stability of the electronic conductivity of polypyrrole(PPy), a series of aromatic sulfonate derivatives having acid-type substitute groups, such as -COGH, -OH, and SO_3H, were used as a dopants. The PPy doped with these dopants showed excellent thermal stability of their electric conductivity, even at 150ﾟC in air. Especially, 2-hydroxy-5-sulfobezoic acid provided the highest thermal stability. The doped PPy maintained 95 % of its initial conductivity even after heating for 8 h at 150*in air and showed 20-times higher stability against long-term heating at 125*for 1000 h in comparison with PPy doped p-methylbenzoic acid.The thermal stabilization mechanism has suggested hat dopants having acidic substituents should suppress proton dissociation from the N-position of the PPy and keep the p-conjugation structure by supplying a proton from acidic groups. Such a proton supplement was confirmed by the IR spectroscopy of deuterized PPy.Their PPys were applicable to use an electrode material of battery and capacitor. The capacitor using PPy doped the antioxidative dopant provides high reliability under high temperature in air for long-term with good high frequency properties.