A high-capacity, high-power organic electrode via supercritical CO2 impregnation into activated carbon micropores

Abstract

Herein, we report the impregnation of chloranil into activated carbon micropores using scCO₂. The sample prepared under 105 °C and 15 MPa showed a specific capacity of 81 mAh g_electrode⁻¹, except for the electric double layer capacity at 1 A g_{electrode-Polytetrafluoroethylene (PTFE)}⁻¹. Additionally, approximately 90% of the capacity was retained even at 4 A g_{electrode-PTFE}⁻¹.