A method for making a high-density carbon material for high-density carbon electrodes

1) A method for making a high-density carbon material for high-density carbon electrodes by wet process free of organic solvents, the method comprising the steps of:

• a) pre-compaction of carbon/polymer composite in wet process where
• i) applying an aqueous solution free of organic solvents to the carbon powder to form a creamy slurry of the carbon powder and an aqueous solution in which the nanopores of carbon powder are not penetrated by aqueous solution,
• ii) dispersing a non-soluble polymeric binding material into the creamy slurry of the carbon powder and the aqueous solution to form homogeneous mixture of carbon-polymer composite in the form of slurry;
• b) making a dry precursor from pre-compacted carbon/polymer composite in the form of slurry by evaporating aqueous solution from said carbon-polymer composite slurry,
• c) milling in non-destructive way a blended dry precursor thereafter into a carbon-polymer composite granulated powder and thereafter forming a carbon-polymer composite film from said carbon-polymer composite granulated powder.