▎ 摘　　要

In this study, we fabricated a bicontinuous carbon structure (BCS) with high porosity and a loosely connected framework structure. The role of the BCS is to support a concrete supercapacitor active electrode structure. Poly(acrylonitrile) was used as a precursor for the BCS material, which was a porous polymer monolith carbonized by heat treatment (at 1100 degrees C). The BCS was prepared by mixing with an active material, graphene or an activated carbon. The mixed materials were used as an electrode material in a supercapacitor. The BCS13 + AC sample (similar to 107.5 F/g) showed a higher specific capacitance than the commercial activated carbon cell (similar to 76 F/g). The BCS13 + graphene sample (similar to 75 F/g) also exhibited a higher specific capacitance than the graphene cell (similar to 49 F/g). This BCS monolith had many macro-and micropores in its structure, enabling fast electrolyte ion movement and excellent electrochemical performance with a low equivalent series resistance (ESR). (c) 2017 The Japan Society of Applied Physics