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- 2018
WO3/碳布柔性非对称超级电容器的组装及性能研究
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Abstract:
摘要 以超级电容器的电极材料制备、性质研究及对组装的非对称超级电容器的性能研究为核心内容，提高超级电容器电化学性能为主要目的，采用水热合成法在碳布基底上合成三氧化钨/碳布和活化后的碳布为超级电容器的电极材料。采用SEM、XRD表征方法对制备的材料进行了形貌表征及物相分析；使用上海辰华电化学工作站对电极材料进行了循环伏安、恒流充放电、交流阻抗等电化学性能测试. 最终得到以三氧化钨/碳布为正极材料、活化后的碳布为负极材料组装成不对称柔性电容器，进行电化学测试，其电位窗口提高到0~1.6 V，电流密度61.9 mA·cm-2时，电容达到58.96 F·cm-2，功率密度0.48 W·cm-2时，能量密度为20.36 mWh·cm-2，同时在电流密度8 mA·cm-2时，循环3000次时表现出良好的循环性能，相较于对称型超级电容器，倍率性能更加优异
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