▎ 摘　　要

NOVELTY - Carbon dispersion solution comprises 0-4 vol.% carbon particles and balance amount of water. The carbon particles have a negatively charged surface potential and are dispersed in water. USE - The carbon dispersion solution is useful for activated carbon for removing contaminants and useful in electrode structure for adsorbing and desorbing an ionic material of a cathode active material e.g. lithium of a secondary battery. ADVANTAGE - The carbon dispersion solution has increased specific surface area to increase the amount of carbon adsorbed and prevent the agglomeration of activated carbon. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for dispersion method of carbon dispersion solution, comprising adding 0-4 vol.% carbon particles into a solvent to obtain carbon dispersion solution, applying plasma to the carbon dispersion solution to charge a surface potential of negative charges to the carbon particles, and storing the carbon dispersion solution in a non-conductive container. DESCRIPTION OF DRAWING(S) - The drawing shows a flowchart illustrating the method of dispersing the carbon dispersion solution (Drawing includes non-English language text).