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US 2024/0191094 A1Published application
Conductive dispersions with ultrathin graphene
AssigneeNanotech Energy, Inc.
InventorsMaher F. EL-KADY, Shannon PRICE, Gaurav TULSYAN
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Abstract
Provided herein are conductive inks and methods of formulation thereof, whose electric and mechanical properties (e.g. viscosity and surface tension) enable its use in a wide array of printing techniques. The outstanding conductivity, thermal stability, chemical stability, and flexibility of graphene in the inks herein enable the production of low-cost electronics with tunable electrochemical properties
Claims21
-25. (canceled)
A method of forming a conductive ink, the method comprising mixing a solution, the solution comprising:
- (a) graphene sheets, wherein:
- (i) at least about 90% of the graphene sheets consist of a single layer;
- (ii) the graphene sheets have an oxygen content of at most about 13%;
- or
- (iii) both;
- (b) a binder;
- (c) a stabilizer comprising poly tetrahydrofuran and diethylene glycol;
- and
- (d) a solvent,
- wherein the conductive ink is stable at temperatures of up to 400° C.
7 more elements
A kit comprising:
- (a) A conductive ink comprising:
- (i) graphene sheets, wherein:
- a. at least about 90% of the graphene sheets consist of a single layer,
- b. the graphene sheets have an oxygen content of at most about 13%, or
- c. both;
- (ii) a binder;
- (iii) a stabilizer comprising poly tetrahydrofuran and diethylene glycol;
- (iv) a solvent;
- and
- (b) and instructions for applying the conductive ink to a substrate, wherein the conductive ink is stable at temperatures of up to 400° C.
7 more elements
Dependencies are inferred from the claim text.