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以苯酐为起始原料,采用改进的苯酐法及磺化方法,首先通过硫酸氧化合成蒽醌,再通过发烟硫酸磺化在蒽醌的侧位上引入磺酸根,从而制备了含有电子转移活性的可溶于水的高纯度蒽醌-2-磺酸盐,然后通过电化学聚合反应在集流体上原位得到聚吡咯复合材料(PPy/AQS).最后,将得到的PPy/AQS复合材料作为锂离子电池的有机电极材料,在常规的有机电解液中形成稳定的电池体系,具备储存和释放锂离子的能力,具有良好的充放电性能及循环稳定性.
Using phthalic anhydride as the starting material, improved phthalic anhydride method and sulfonation method were used. Firstly, anthraquinone was oxidized by sulfuric acid and sulfonate group was introduced into the side of anthraquinone by oleum sulfonation to prepare a solution containing electron transfer activity Of water-soluble high-purity anthraquinone-2-sulfonate, and then through the electrochemical polymerization of polypyrrole composite (PPy / AQS) in situ on the current collector.Finally, the obtained PPy / AQS composite As an organic electrode material for lithium ion batteries, a stable battery system is formed in conventional organic electrolytes, has the ability to store and release lithium ions, and has good charge and discharge performance and cycle stability.