▎ 摘　　要

NOVELTY - The method involves selecting the electrolyte from a group consisting of a first electrolyte with a first average of solvated ion sizes equal to or less than 1 nm, and a second electrolyte with a second average of solvated ion sizes greater than 1 nm. An activation temperature and an activation time period are selected. The carbon source is activated in the presence of nearly inert gas at atmospheric pressure and at the activation temperature for the activation time period so as to produce the activated carbon such that the several pores are provided with more of the micropores than the mesopores and more of the mesopores than the macropores. USE - Method for producing activated carbon for use with electrolyte in apparatus such as supercapacitor designed as electrochemical energy storage device and battery for grid scale applications for storing electrical energy (all claimed). ADVANTAGE - The processes, manufacturing, systems, apparatus, and physical energy storage device can be greatly improved such that the activated carbon is produced with predetermined pores sizes and distribution hierarchical structure for the manufacturing of energy storage devices such as supercapacitors. The process for matching the electrolyte charge carrier sizes and the activated carbon pore dimensions allows for the assembly of the devices in normal atmospheric environments due to the preferred electrolyte. The method allows for the production of improved energy storage devices by specifically controlling and matching the pore size distribution of activated carbons, the hierarchical structure, and the desired electrolyte. The method allows for improved surface contacting, interconnection, and propagation, of the electrolyte and ions within the activated carbon electrode. The method for improvements allow for better ionic interconnection, and charge transport such that the energy density and performance can be improved. The porosity of a microporous carbon is matched to the recently discovered water/acetonitrile hybrid electrolyte along with the good electrolyte wetting. The low diffusion resistance and increased accessible surface area of activated carbons can be ensured such that the elevated capacitive performance compared to aqueous and organic electrolytes even in thick electrodes can be achieved. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method of producing an electrode; and (2) an apparatus for storing electrical energy. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram illustrating the performance comparison of thermal coal with the state-of-the-art AC-based SCs reported in researched literature.