A hierarchical nanoporous C/C composite with high specific surface area was synthesized from sulfonated pitch and fulvic acid for high-energy-density EDLCs. It exhibits a highly continuous 3D carbonaceous network. By fully exploiting the synergistic effect between high e-conductivity and high specific surface area, it shows excellent electrochemical stability in EMIMBF₄ ionic liquid electrolyte. The maximum energy density can be as high as 55.4 Wh kg⁻¹, largely better than commercial activated carbon.

中文翻译：

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用于高能量密度 EDLC 电极的腐殖酸和磺化沥青的分级纳米多孔 C/C 复合材料

用磺化沥青和富里酸合成了一种具有高比表面积的分级纳米多孔 C/C 复合材料，用于高能量密度 EDLC。它表现出高度连续的 3D 碳质网络。通过充分利用高之间的协同效应Ë -conductivity和高比表面积，它示出了在EMIMBF优异的电化学稳定性₄离子液体电解质。最大能量密度可高达55.4 Wh kg ^-1，大大优于商用活性炭。