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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12755983 B1

PDFFull Text
Date of Patent:
Oct. 06, 2026

Filed:

Sep. 08, 2023

Direct-formation self-assembly graphene from cellulose nanofiber aqueous solution

Applicant:

Nano and Advanced Materials Institute Limited, Hong Kong, HK;

Inventors:

Wei Huang, Hong Kong, HK;

Soon Yee Liew, Hong Kong, HK;

Shengbo Lu, Hong Kong, HK;

Chenmin Liu, Hong Kong, HK;

Assignee:

HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE COMPANY LIMITED, Hong Kong, HK;

Attorneys:

IDEA Intellectual Limited

Sam T. Yip

Primary Examiner:

Haroon S Sheikh

Int. Cl.
CPC ...
H01M 4/66 (2006.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/80 (2006.01); H01M 10/052 (2010.01); H01M 50/105 (2021.01);
U.S. Cl.
CPC ...
H01M 4/663 (2013.01); H01M 4/0409 (2013.01); H01M 4/045 (2013.01); H01M 4/0471 (2013.01); H01M 4/80 (2013.01); H01M 10/052 (2013.01); H01M 50/105 (2021.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract

A self-assembled freestanding graphene membrane or graphene layer is formed from industrial graphene having a particle size from approximately 1 to 10 microns and cellulose nanofibers having a nanofiber size from approximately 1 to 9 microns. The self-assembled freestanding graphene membrane or graphene layer has a graphene to cellulose nanofiber mass ratio of approximately 12:1 to 20:1, an electrical conductivity of between approximately 5.8 and 7.2 S/cm, and a thermal conductivity of between 2000 and 3000 W mK. The freestanding graphene membrane or graphene layer is formed from an aqueous dispersion of graphene and cellulose nanofibers in a mass ratio of graphene to cellulose nanofibers of 20:1 to 10:1 deposited on a substrate followed by self-assembly and drying. A dopant of oxygen, nitrogen, sulfur, nickel, gold, silver, zinc, copper, magnesium, and boron may be precisely incorporated into the graphene membrane or layer.

Find Patent Forward Citations

Huang, Wei. (2026). Direct-formation self-assembly graphene from cellulose nanofiber aqueous solution (U.S. Patent No. 12755983). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12755983

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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