Method for the production of an ink for forming a conductive coating comprising the steps of: (i) providing a mixture comprising graphite, an agent for exfoliation and a first polar solvent, wherein: - the agent for exfoliation is selected from the group consisting of lignosulfonate, cellulose nanocrystals, cellulose nanofibers, chitin nanocrystals, chitin nanofibers, hemicellulose nanocrystals, hemicellulose nanofibers, starch nanocrystals, starch nanofibers, lignin, tannins and mixtures thereof; and - the weight ratio of agent for exfoliation to graphite is comprised from 1:100 to 1:20; (ii) homogenising the mixture provided in step (i); (iii) adding to the mixture resulting from step (ii) a binder that is different from the agent for exfoliation, wherein said binder is selected from the group consisting of polyaniline and a water soluble polysaccharide having a degree of polymerization higher than 5 and optionally substituted at any available position with one or more radicals independently selected from the group consisting of (C 1 -C 6 )alkyl, (C 1 -C 6 )alkylcarbonyl and (C 1 -C 6 )alkyl-CO 2 H; and wherein the binder is in an amount such that the weight ratio of binder to agent for exfoliation is comprised from 4:1 to 1:2; (iv) adding to the mixture resulting from step (iii) a second polar protic solvent having a boiling point equal to or higher than the first polar solvent provided in step (i); and (v) removing substantially all the first polar solvent provided in step (i) while leaving substantially all the second polar protic solvent added in step (iv). (i) providing a mixture comprising graphite, an agent for exfoliation and a first polar solvent, wherein: - the agent for exfoliation is selected from the group consisting of lignosulfonate, cellulose nanocrystals, cellulose nanofibers, chitin nanocrystals, chitin nanofibers, hemicellulose nanocrystals, hemicellulose nanofibers, starch nanocrystals, starch nanofibers, lignin, tannins and mixtures thereof; and - the weight ratio of agent for exfoliation to graphite is comprised from 1:100 to 1:20; - the agent for exfoliation is selected from the group consisting of lignosulfonate, cellulose nanocrystals, cellulose nanofibers, chitin nanocrystals, chitin nanofibers, hemicellulose nanocrystals, hemicellulose nanofibers, starch nanocrystals, starch nanofibers, lignin, tannins and mixtures thereof; and - the weight ratio of agent for exfoliation to graphite is comprised from 1:100 to 1:20; (ii) homogenising the mixture provided in step (i); (iii) adding to the mixture resulting from step (ii) a binder that is different from the agent for exfoliation, wherein said binder is selected from the group consisting of polyaniline and a water soluble polysaccharide having a degree of polymerization higher than 5 and optionally substituted at any available position with one or more radicals independently selected from the group consisting of (C 1 -C 6 )alkyl, (C 1 -C 6 )alkylcarbonyl and (C 1 -C 6 )alkyl-CO 2 H; and wherein the binder is in an amount such that the weight ratio of binder to agent for exfoliation is comprised from 4:1 to 1:2; (iv) adding to the mixture resulting from step (iii) a second polar protic solvent having a boiling point equal to or higher than the first polar solvent provided in step (i); and (v) removing substantially all the first polar solvent provided in step (i) while leaving substantially all the second polar protic solvent added in step (iv). <EOS>