Production process for highly conducting and oriented graphene film

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United States of America Patent

PATENT NO 11469009
APP PUB NO 20190088383A1
SERIAL NO

16193240

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Abstract

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A process for producing a highly conducting film of conductor-bonded graphene sheets that are highly oriented, comprising: (a) preparing a graphene dispersion or graphene oxide (GO) gel; (b) depositing the dispersion or gel onto a supporting solid substrate under a shear stress to form a wet layer; (c) drying the wet layer to form a dried layer having oriented graphene sheets or GO molecules with an inter-planar spacing d002 of 0.4 nm to 1.2 nm; (d) heat treating the dried layer at a temperature from 55° C. to 3,200° C. for a desired length of time to produce a porous graphitic film having pores and constituent graphene sheets or a 3D network of graphene pore walls having an inter-planar spacing d002 less than 0.4 nm; and (e) impregnating the porous graphitic film with a conductor material that bonds the constituent graphene sheets or graphene pore walls to form the conducting film.

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Patent Owner(s)

  • GLOBAL GRAPHENE GROUP, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jang, Bor Z Centerville, US 667 14610
Zhamu, Aruna Springboro, US 525 11655

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