# US 11,607,866 B2 · Hybrid ionic graphene nanocomposite with layered structure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,607,866 B2 - Document ID: US11607866B2 - Status: Granted - Kind: B2 - Application number: 16/647,036 - Filed: 2018-09-14 - Published: 2020-08-13 - Granted: 2023-03-21 - Earliest claimed: 2017-09-14 - Assignees: GraphMaTech AB - Applicants: GraphMaTech AB - Inventors: Mamoun Taher - Web page: https://patentgrep.com/patent/US11607866B2 ## CPC - B32B 9/007: {comprising carbon, e.g. graphite, composite carbon} - C01B 32/194: After-treatment - B32B 9/00: Layered products comprising a {layer of a} particular substance not covered by groups B32B11/00 - B32B29/00 - B32B 9/005: {comprising one layer of ceramic material, e.g. porcelain, ceramic tile (layered products with at least two ceramic layers composed mainly of ceramic B32B18/00)} - B32B 9/041: {of metal} - B32B 9/045: {of synthetic resin} - B32B 15/08: of synthetic resin - B32B 15/18: comprising iron or steel {(B32B15/011, B32B15/012 and B32B15/013 take precedence)} - B32B 15/20: comprising aluminium or copper {(B32B15/016 and B32B15/017 take precedence)} - B32B 18/00: Layered products essentially comprising ceramics, e.g. refractory products - B32B 27/08: of synthetic resin - B32B 2255/06: on metal layer - B32B 2255/10: on synthetic resin layer or on natural or synthetic rubber layer - B32B 2255/20: Inorganic coating - B32B 2255/28: Multiple coating on one surface - B32B 2305/024: Honeycomb - B32B 2305/30: Fillers, e.g. particles, powders, beads, flakes, spheres, chips - B32B 2307/302: Conductive - B32B 2307/554: Wear resistance - B32B 2307/746: Slipping, anti-blocking, low friction - B32B 2457/10: Batteries - B32B 2457/12: Photovoltaic modules - B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites - B82Y 40/00: Manufacture or treatment of nanostructures - C01B 35/121: {of alkali metal} - Y02E 60/10: Energy storage using batteries - Y02E 60/13: Energy storage using capacitors - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C} - B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A material can have a layered structure with at least a first layer, including a carbon-based material or a substrate of a material other than a carbon-based material, a second layer, including a carbon-based material, and a third, intermediate layer that separates and interconnects the first and second layers. The carbon-based material includes at least 50 at. % carbon, has a hexagonal lattice and the layer or layers including the carbon-based material has/have a thickness of 1-20 times the size of a carbon atom. The intermediate layer is a layer that includes a salt having ions that include at least two separate cyclic, planar groups that are capable of forming π-π-stacking with the material of the second layer and that the third, intermediate layer is connected to at least the second layer by π-π-stacking caused by said cyclic planar groups of the salt ions. ## Claims ### Claim 1 A nanocomposite material comprising a first layer, a second layer comprising a carbon-based material and an intermediate layer that separates and interconnects the first and second layers, wherein said carbon-based material comprises at least 50 atomic percent carbon, has a hexagonal lattice and wherein the second layer has a thickness of 1-20 times the size of a carbon atom, wherein the intermediate layer comprises a salt that has ions comprising at least two separate cyclic, planar groups that are capable of forming π-π-stacking interaction with at least the second layer. ### Claim 2 (depends on 1) The nanocomposite material according to claim 1, wherein the cyclic planar groups of said ions of said salt comprise at least one aromatic group. ### Claim 3 (depends on 1) The nanocomposite material according to claim 1, wherein each of said cyclic planar groups of said ions of said salt is an aromatic group. ### Claim 4 (depends on 1) The nanocomposite material according to claim 1, wherein the first layer comprises a carbon-based material and wherein each first and second layer has a thickness of 1-10 times the size of a carbon atom. ### Claim 5 (depends on 1) The nanocomposite material according to claim 1, wherein the thickness of the intermediate layer is below 20 nm. ### Claim 6 (depends on 1) The nanocomposite material according to claim 1, wherein the carbon-based material comprises at least 99 atomic percent (at. %) carbon. ### Claim 7 (depends on 1) The nanocomposite material according to claim 1, wherein the salt has the following formula: wherein X is any element from the periodic table that has the possibility to chelate resulting in an anionic nature; y1, y2, y3, y4 is any one of O, S, Si, C, N and P; R1, R2 are hydrocarbon chains, at least one of which is aromatic, or R1 and R2 form an aromatic ring with C1 and C2; R3, R4 are hydrocarbon chains, at least one of which is aromatic, or R3 and R4 form an aromatic ring with C3 and C4; H′ is hydrogen or a carbonyl group; wherein the combination of X, H′, y1, y2, y3, y4, R1, R2, R3, R4, C1, C2, C3 and C4 defines the anion of the salt; and A+ is any cation capable of forming a salt in combination with the anion. ### Claim 8 (depends on 7) The nanocomposite material according to claim 7, wherein not more than two H′ are a carbonyl group, and that, if two H′ are a carbonyl group, the carbonyl groups are located on C3 and C2 or on C4 and C1. ### Claim 9 (depends on 7) The nanocomposite material according to claim 7, wherein X is any of boron (B) or aluminium (Al). ### Claim 10 (depends on 7) The nanocomposite material according claim 7, wherein A is chosen from sodium (Na) and lithium (Li) and X is chosen from aluminium (Al) and boron (B). ### Claim 11 (depends on 1) A powder material comprising the nanocomposite material according to claim 1. ### Claim 12 (depends on 1) A sintered metallic product comprising a metal or metal alloy and the nanocomposite material according to claim 1. ### Claim 13 (depends on 12) The sintered metallic product according to claim 12, wherein the metal or metal alloy comprises Cu. ### Claim 14 (depends on 1) A material comprising metal powder and the nanocomposite material according to claim 1 in the form of a powder. ### Claim 15 (depends on 1) A material having a layered structure comprising the nanocomposite material according to claim 1, wherein the first layer is a substrate layer comprising a material other than said carbon-based material, the intermediate layer separates and interconnects the substrate layer and the second layer; and a plurality of layers comprising a carbon-based material on the second layer. ### Claim 16 (depends on 15) The material according to claim 15, wherein the first layer comprises a metal substrate comprising, as a main constituent, any one of the following metals, Au, Ag, Al, Cu, Fe, Ti, Ni, or a combination thereof. ### Claim 17 (depends on 1) A method of producing the nanocomposite material according to claim 1, the method comprising the steps of: preparing a first solution comprising of the carbon-based material and ethanol; preparing a second solution comprising of the salt and ethanol; adding the second solution to the first solution in a stepwise procedure; and drying the mixture of the first and second solution to evaporate solvents and thereby obtaining a powder of the nanocomposite material. ### Claim 18 A nanocomposite material comprising a first layer, a second layer comprising a carbon-based material and an intermediate layer that separates and interconnects the first layer and second layer, wherein the carbon-based material comprises at least 50 atomic percent carbon, has a hexagonal lattice and has a thickness of 1-20 times the size of a carbon atom, wherein the intermediate layer comprises a salt of lithium bis(salicylato)borate [Li][BScB]. ### Claim 19 (depends on 18) The nanocomposite material according to claim 18, wherein the second layer comprises graphene. ### Claim 20 (depends on 18) The nanocomposite material according to claim 18, wherein the first and second layer comprise graphene to form a graphene lithium bis(salicylato)borate (G[Li][BScB]) nanocomposite.