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US 10,947,113 B2Granted
Graphene fiber, method for manufacturing same and use thereof
AssigneeGraphene Square, Inc.
InventorsByung Hee Hong, Keun Soo Kim, Hyeong Keun Kim, Su Kang Bae
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Abstract
The present disclosure relates to a manufacturing method of a graphene fiber, a graphene fiber manufactured by the same method, and use thereof. The graphene fiber formed by using graphenes of linear pattern can be applied to various fields such as an electric wire and coaxial cable.
Claims19
A manufacturing method of a graphene fiber, comprising:
- forming a metal layer containing multiple linear patterns on a substrate;
- supplying a reaction gas containing a carbon source and heat to the metal layer containing multiple linear patterns to form multiple linear graphene sheets;
- immersing the substrate in an etching solution to selectively remove the metal layer from the substrate and disperse the multiple linear graphene sheets into the etching solution;
- and
- pulling the dispersed multiple linear graphene sheets out of the etching solution to form a graphene fiber,
- wherein each of the pulled multiple linear graphene sheets has a width from approximately 1 mm to approximately 5 mm, and the formed graphene fiber has a diameter from approximately 25 μm to approximately 55 μm.
3 more elements
A graphene fiber, comprising:
- a plurality of linear graphene sheets pulled out of an etching solution and self-assembled to form an elongated thread having a length which is longer than a length of each of the plurality of linear graphene sheets;
- wherein each of the plurality of linear graphene sheets has a width from approximately 1 mm to approximately 5 mm, and the elongated thread has a diameter from approximately 25 μn to approximately 55 μm.
A coaxial cable, comprising:
- a core conductor including a graphene fiber;
- an insulator wrapped around the core conductor;
- an external conductor wrapped around the insulator;
- and
- a jacket wrapped around the external conductor,
- wherein the graphene fiber includes a plurality of linear graphene sheets pulled out of an etching solution and self-assembled to form an elongated thread;
- and
- each of the plurality of linear graphene sheets has a width from approximately 1 mm to approximately 5 mm, and the elongated thread has a diameter from approximately 25 μm to approximately 55 μm.
5 more elements
Dependencies are inferred from the claim text.