Patent ID: 8501307

Claim:
A recompressed exfoliated graphite article free of impregnating resin comprising a mixture of: (a) expanded or exfoliated graphite flakes; and (b) non-expandable particles as an isotropy promoter, wherein said non-expandable particles are selected from natural graphite, synthetical graphite, highly oriented pyrolytic graphite, graphite oxide, graphite fluoride, chemically modified graphite, spheroidal graphite, meso-porous micro-beads, or a combination thereof and are in an amount of between about 3% and about 70% by weight based on the total weight of said particles and said exfoliated graphite flakes; wherein said mixture is compressed to form said article having an apparent bulk density of from about 0.1 g/cm 3 to about 2.0 g/cm 3 , an anisotropy ratio from 1.01 to 35.5, and a thickness-direction conductivity not less than 50 S/cm.