| abstract |
An ink composition comprises at least one solvent, at least one binder and a conductive additive comprising at least one carbon material of a variety of geometry and size distributions, wherein the conductive material is present in an amount sufficient for the ink, once dry, to be electrically conductive. The ink may further comprise at least one polysaccharide. The solvent base may be water or a non-aqueous solvent. The conductive material preferably comprises a spherical carbon, a plate carbon and a rod carbon. The plate carbon may be graphite, carbon black, activated carbon powder, modified conductive carbon, powdered activated carbon or powdered charcoal. The plate carbon may be graphite nanoplates, graphene, graphene nanoribbons, graphyne or few layer graphene flakes. The rod carbon may be in the form of nanotubes, fibre, chopped fibre, milled fibre or nanohorns. Also disclosed is a biodegradable ink composition. |