一种超级电容器用活性及其制备方法与应用

本发明属于活性炭材料制备技术领域，具体涉及一种超级电容器用活性炭及其制备方法和应用。本发明利用不同的活化剂对炭化料进行两次气体活化，将炭化料活化成具有中孔和微孔结构的活性炭，为电荷的存储提供了大面积的场所，又为电解质离子提供了快速输送的通道，有利于提高超级电容器的比电容量。实施例结果表明，本发明所得活性炭用于超级电容器电极材料时，以2mol/L的1-乙基-3-甲基咪唑四氟硼酸盐/乙腈溶液为电解液，在扫速为5mV/s时，超级电容器的比电量达到110～186F/g。

This invention falls within the technical field of activated carbon material preparation, and specifically pertains to an activated carbon for supercapacitors, as well as its preparation method and application. The present invention employs two-stage gas activation treatment on carbonized materials using different activators, to convert the carbonized materials into activated carbon with mesoporous and microporous structures. Such a structure provides large-area sites for charge storage and rapid transport channels for electrolyte ions, which is beneficial to enhancing the specific capacitance of supercapacitors. The results of the examples demonstrate that when the activated carbon obtained from this invention is used as the electrode material for supercapacitors, with a 2 mol/L 1-ethyl-3-methylimidazolium tetrafluoroborate/acetonitrile solution as the electrolyte, the specific capacitance of the supercapacitor reaches 110–186 F/g at a scan rate of 5 mV/s.

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该数据集源自'人工林剩余物资源化利用技术研究'项目，聚焦于一种超级电容器用活性炭的制备方法与应用。其核心特点是利用两次气体活化技术，制备出具有中孔和微孔结构的活性炭材料，旨在提高超级电容器的比电容量（实验结果显示可达110-186F/g），属于植物学领域的资源化利用技术研究报告。