A biomass-derived activated carbon with a systematic control over the pore size distribution is used to decode the effect of pore size distribution on charge dynamics in organic acetonitrile-based supercapacitors. Distinct trends in the high-current capacitance of the positive and negative electrodes are revealed by isolating the ion-specific accessible pore width and specific surface area from the total values calculated on the basis of low-temperature nitrogen adsorption/desorption isotherms. A size match between ions and pores for each separate electrode is established to maximize gravimetric capacitance under high current load. Most importantly, the high-current gravimetric capacitance demonstrates the existence of an optimum micropore width depending on polarization as well as no need for wide micropores or mesopores for ensuring rapid capacitive response.

系统地控制孔径分布的生物质衍生活性炭可用于解码孔径分布对基于有机乙腈的超级电容器中电荷动力学的影响。通过从基于低温氮吸附/解吸等温线计算出的总值中隔离离子比可及孔径和比表面积，可以揭示正负电极大电流电容的不同趋势。建立每个单独电极的离子和孔之间的尺寸匹配，以在高电流负载下使重量电容最大化。最重要的是，