Aerosol-generating component

Abstract

An aerosol-generating component (100) for use as part of a non-combustible aerosol supply system. The aerosol-generating component (100) comprises a carbon allotrope (101) supported on an electrically insulating substrate (102). The aerosol-generating component (100) includes a heating portion (100a) and at least one aerosolizable material supply portion (100b) extending from the heating portion (100a).

Description

Technical Field

[0001] This invention relates to an aerosol generating component, particularly an aerosol generating component for a non-flammable aerosol supply system. The invention also relates to an aerosol generating assembly including the aerosol generating component, an aerosol generating system including the aerosol generating component or the aerosol generating assembly, and a method for forming the aerosol generating component. Background Technology

[0002] Non-flammable aerosol supply systems that generate aerosols for user inhalation are known in the art. Such systems typically include an aerosol generating component capable of converting aerosolizable materials into aerosols. In some cases, the generated aerosol is a condensed aerosol, whereby the aerosolizable material is first vaporized and then allowed to condense into an aerosol. In other cases, the generated aerosol is produced by the atomization of aerosolizable materials. This atomization can be mechanically initiated, for example by subjecting the aerosolizable material to vibration to form small particulate material entrained in the airflow. Alternatively, this atomization can be induced electrostatically or otherwise (e.g., by using pressure).

[0003] Because such an aerosol supply system is designed to generate aerosols for users to inhale, the characteristics of the generated aerosols should be considered. These characteristics may include aerosol particle size, the total amount of aerosols generated, etc.

[0004] In cases where aerosol delivery systems are used to simulate the smoking experience (e.g., as e-cigarettes or similar products), the control of these different characteristics is particularly important because users may expect to generate specific sensory experiences from the use of the system.

[0005] The goal is to provide a non-flammable aerosol supply system with improved control over these characteristics. Summary of the Invention

[0006] According to a first aspect of this disclosure, an aerosol generating component is provided for use as part of a non-flammable aerosol supply system, the aerosol generating component comprising a carbon allotrope supported on an electrically insulating substrate, wherein the aerosol generating component includes a heating section and at least one aerosolizable material supply section extending from the heating section.

[0007] In some embodiments, the aerosolizable material supply section or each aerosolizable material supply section extends from the side of the heating section.

[0008] In some implementations, the heating element is elongated.

[0009] In some embodiments, the aerosolizable material supply section or each aerosolizable material supply section is elongated.

[0010] In some embodiments, the aspect ratio of the aerosolizable material supply section or each aerosolizable material supply section is 1:1 to 5:1.

[0011] In some embodiments, the length of the aerosolizable material supply section or each aerosolizable material supply section is 1 to 15 mm.

[0012] In some embodiments, the width of the aerosolizable material supply section or each aerosolizable material supply section is 1 to 3 mm.

[0013] In some embodiments, the aerosolizable material supply section or each aerosolizable material supply section gradually narrows away from the elongated heating section.

[0014] In some embodiments, the electrically insulating substrate has a thickness of 5 to 500 µm.

[0015] In some embodiments, the heating element has a width ranging from 0.5 mm to 50 mm.

[0016] In some embodiments, the length of the heating element is 1 mm to 50 mm.

[0017] In some embodiments, the carbon allotrope is formed in the form of multiple nanotubes, open-cell foam, or multiple sheets.

[0018] In some embodiments, the carbon allotrope comprises one or more graphene layers. Where there is more than one graphene layer, at least two graphene layers may be non-parallel to each other. Where there is more than one graphene layer, at least two graphene layers may be parallel to each other. For example, the carbon allotrope may be a bilayer of graphene.

[0019] In some implementations, the carbon allotrope is graphite.

[0020] In some embodiments, the carbon allotrope has one or more of the following: from 100 to 5500 Wm -1 k -1 Thermal conductivity, from 1 to 2.5 × 10⁻⁶ 6 Sm -1 Its electrical conductivity and nonlinear elasticity.

[0021] In some embodiments, the electrically insulating substrate has a porous structure formed by pillars and interstitial pores.

[0022] In some implementations, carbon allotropes are formed on the column.

[0023] In some embodiments, the average aperture of the gap hole is 0.5 to 40 µm.

[0024] In some embodiments, carbon allotropes include disordered graphite and / or amorphous carbon.

[0025] In some embodiments, the Raman spectrum of the carbon allotrope includes G and D bands, with the G band peak at approximately 1500 cm⁻¹. -1 Approximately 1650 cm -1 Within the Raman shift range, and the D-band peak is at approximately 1250 cm⁻¹. -1 Approximately 1400 cm -1 Within the Raman shift range, the intensity of the D band peak I D The intensity of the G-band peak I G The ratio I D / I G It ranges from about 0.8 to about 2, preferably from about 1 to about 1.8.

[0026] According to a second aspect of this disclosure, an aerosol generating assembly is provided for use as part of a non-flammable aerosol supply system, the aerosol generating assembly comprising: an aerosol generating component according to a first aspect of this disclosure; and an aerosol generating material transfer component for supplying aerosol generating material to the aerosol generating component.

[0027] In some embodiments, the aerosol-generating material transfer component includes a reservoir.

[0028] In some implementations, the aerosol generating component traverses the reservoir.

[0029] In some embodiments, the aerosol generating material transfer component includes at least one capillary channel with an outlet.

[0030] In some embodiments, the outlet is arranged near the aerosol generating component, such that the aerosolizable material leaving the outlet comes into direct contact with the aerosol generating component.

[0031] According to a third aspect of this disclosure, a non-flammable aerosol supply system is provided, comprising: an aerosol generating component of the first aspect of this disclosure or an aerosol generating assembly of the second aspect of this disclosure; and one or more of a power supply and a controller.

[0032] According to another aspect of this disclosure, the following is provided: Clause A1. An aerosol generating component for use as part of a non-flammable aerosol supply system, the aerosol generating component comprising a carbon allotrope loaded on an electrically insulating substrate.

[0033] Clause A2. An aerosol generating component according to Clause A1, wherein the carbon allotrope comprises one or more graphene layers, wherein, in the presence of more than one graphene layer, at least two graphene layers are not parallel to each other.

[0034] Clause A3. Aerosol generating components according to Clause A1 or A2, wherein the carbon allotropes include graphite.

[0035] Clause A4. An aerosol generating component according to any one of Clauses A1 to A3, wherein the carbon allotrope has one or more of the following: from 100 to 5500 Wm -1 k -1 Thermal conductivity, from 1 to 2.5 × 10⁻⁶ 6 Sm -1 Its electrical conductivity and nonlinear elasticity.

[0036] Clause A5. An aerosol generating component according to any one of Clauses A1 to A4, wherein the electrically insulating substrate is selected from the group consisting of plastics, glass, paper and ceramics.

[0037] Clause A6. An aerosol generating component according to any one of Clauses A1 to A5, wherein the aerosol generating component includes a capillary structure.

[0038] Clause A7. Aerosol generating component according to Clause A6, wherein the electrically insulating substrate has a porous structure formed by pillars and gap holes.

[0039] Clause A8. Aerosol generating component according to Clause A7, wherein carbon allotropes are formed on one or more columns.

[0040] Clause A9. Aerosol generating component according to Clause A8, wherein the gap orifice has an average pore diameter of 0.5 to 40 µm.

[0041] Clause A10. An aerosol generating component according to any one of Clauses A1 to A9, wherein the carbon allotropes are formed in the form of multiple nanotubes.

[0042] Clause A11. An aerosol generating component according to any one of Clauses A1 to A9, wherein the carbon allotropes are formed in the form of open-cell foam.

[0043] Clause A12. An aerosol generating component according to any one of Clauses A1 to A9, wherein carbon allotropes are formed in the form of multiple sheets.

[0044] Clause A13. An aerosol generating component according to any one of Clauses A1 to A12, wherein the carbon allotrope has a thickness from 0.345 nm to 100 µm.

[0045] Clause A14. An aerosol generating component according to any one of Clauses A1 to A13, wherein the electrically insulating substrate is formed in the form of a plate, strip, or rod.

[0046] Clause A15. An aerosol generating component according to any one of Clauses A1 to A14, wherein the electrically insulating substrate has a thickness of 5 to 500 µm, and / or a width of 0.5 to 50 mm, and / or a length of 1 to 50 mm.

[0047] Clause A16. An aerosol generating component according to any one of Clauses A1 to A15, wherein at least 50% of the surface area of ​​the carbon allotrope transelectric insulating substrate is loaded on the substrate.

[0048] Clause A17. The aerosol generating component according to any one of Clauses A1 to A16 further includes one or more electrodes arranged to be in electrical contact with a carbon allotrope.

[0049] Clause A18. Aerosol generating components according to Clause A17, wherein each of one or more electrodes is formed of copper, silver or gold.

[0050] Clause A19. An aerosol generating assembly for use as part of a non-flammable aerosol supply system, the aerosol generating assembly comprising an aerosol generating component according to any one of Clauses A1 to A18 and an aerosol generating material transfer component for supplying aerosol generating material to the aerosol generating component.

[0051] Clause A20. An aerosol generating assembly pursuant to Clause A19, wherein the aerosol generating material transfer component includes a reservoir, wherein the aerosol generating component traverses the reservoir.

[0052] Clause A21. An aerosol generating assembly according to Clause A19, wherein the aerosol generating material transfer component includes at least one capillary channel having an outlet.

[0053] Clause A22. An aerosol generating assembly according to Clause A21, wherein the outlet is arranged adjacent to the aerosol generating component such that aerosolizable material leaving the outlet comes into direct contact with the aerosol generating component.

[0054] Clause A23. A non-flammable aerosol supply system comprising: an aerosol generating component of any one of Clauses A1 to A18 or an aerosol generating assembly of any one of Clauses A19 to A22; and one or more of a power source and a controller.

[0055] Clause A24. A method for forming an aerosol generating component according to any one of Clauses A1 to A18, the method comprising the step of forming a carbon allotrope on an electrically insulating substrate.

[0056] Clause A25. The method according to Clause A24, wherein carbon allotropes are formed by one of printing, laser-induced graphene formation, and chemical vapor deposition.

[0057] According to another aspect of this disclosure, the following is provided: Clause B1. An aerosol generating component for use as part of a non-flammable aerosol supply system, the aerosol generating component comprising a carbon allotrope loaded on an electrically insulating substrate, wherein the carbon allotrope is configured such that at a temperature of 150°C, the contact angle between a glycerol droplet and the surface of the carbon allotrope is no greater than 20 degrees.

[0058] Clause B2. The aerosol generating component according to Clause B1, wherein at a temperature of 20°C, the contact angle between the droplets of glycerol and the surface of the carbon allotrope is from 70 degrees to 130 degrees.

[0059] Clause B3. Aerosol generating components according to Clause B1 or B2, wherein the carbon allotrope includes one or more dopants.

[0060] Clause B4. Aerosol generating components pursuant to Clause B3, wherein one or more dopants include n-dopants (n-type dopants).

[0061] Clause B5. Aerosol generating components according to Clause B4, wherein the n-doper is selected from the group consisting of phosphorus and nitrogen.

[0062] Clause B6. Aerosol generating components according to Clauses B3 to B5, wherein one or more dopants include p-dopants (p-type dopants).

[0063] Clause B7. Aerosol generating components according to Clause B6, wherein the p-dopant is selected from the group consisting of boron and sulfur.

[0064] Clause B8. An aerosol generating component according to any one of Clauses B1 to B7, wherein the carbon allotrope comprises one or more graphene layers, wherein, in the presence of more than one graphene layer, at least two graphene layers are not parallel to each other.

[0065] Clause B9. An aerosol generating component according to any one of Clauses B1 to B7, wherein the carbon allotrope is graphite.

[0066] Clause B10. An aerosol generating component according to any one of Clauses B1 to B9, wherein the carbon allotrope has one or more of the following: from 100 to 5500 Wm -1 k -1 Thermal conductivity, from 1 to 2.5 × 10⁻⁶ 6 Sm -1 Its electrical conductivity and nonlinear elasticity.

[0067] Clause B11. An aerosol generating component according to any one of Clauses B1 to B10, wherein the electrically insulating substrate has a thickness of 5 to 500 µm, and / or a width of 0.5 mm to 50 mm, and / or a length of 1 mm to 50 mm.

[0068] Clause B12. An aerosol generating component according to any one of Clauses B1 to B11, wherein the electrically insulating substrate is selected from the group consisting of plastics, glass, paper and ceramics.

[0069] Clause B13. An aerosol generating component according to any one of Clauses B1 to B12, wherein the electrically insulating substrate has a porous structure formed by pillars and gap holes.

[0070] Clause B14. Aerosol generating component according to Clause B13, wherein carbon allotropes are formed on the column.

[0071] Clause B15. Aerosol generating components according to Clause B13 or B14, wherein the gap orifices have an average pore diameter of 0.5 to 40 µm.

[0072] Clause B16. An aerosol generating component according to any one of Clauses B1 to B14, wherein carbon allotropes are formed in the form of multiple nanotubes.

[0073] Clause B17. An aerosol generating component according to any one of Clauses B1 to B14, wherein the carbon allotropes are formed in the form of open-cell foam.

[0074] Clause B18. An aerosol generating component according to any one of Clauses B1 to B14, wherein the carbon allotropes are formed in the form of multiple sheets.

[0075] Clause B19. An aerosol generating component according to any one of Clauses B1 to B18, wherein the aerosol generating component includes a capillary structure.

[0076] Clause B20. An aerosol generating assembly for use as part of a non-flammable aerosol supply system, the aerosol generating assembly comprising: an aerosol generating component according to any one of Clauses B1 to B19; and an aerosol generating material transfer component for supplying aerosol generating material to the aerosol generating component.

[0077] Clause B21. Aerosol generating assembly pursuant to Clause B20, wherein the aerosol generating material transfer component includes a reservoir.

[0078] Clause B22. Aerosol generating assembly pursuant to Clause B20 or B21, wherein the aerosol generating component traverses the reservoir.

[0079] Clause B23. An aerosol generating component according to Clause B20, wherein the aerosol generating material transfer component includes at least one capillary channel having an outlet.

[0080] Clause B24. An aerosol generating assembly pursuant to Clause B18, wherein the outlet is arranged adjacent to the aerosol generating component such that aerosolizable material leaving the outlet comes into direct contact with the aerosol generating component.

[0081] Clause B25. A non-flammable aerosol supply system comprising: an aerosol generating component according to any one of Clauses B1 to B19 or an aerosol generating assembly according to any one of Clauses B20 to B24; and one or more of a power source and a controller.

[0082] According to another aspect of this disclosure, the following is provided: Clause C1. An aerosol generating component for use as part of a non-flammable aerosol supply system, the aerosol generating component comprising a carbon allotrope loaded on an electrically insulating substrate, wherein the substrate is elongated and has an aspect ratio from 5:1 to 50:1.

[0083] Clause C2. The aerosol generating component according to Clause C1 has an electrically insulating substrate with a length of 10 to 30 mm.

[0084] Clause C3. Aerosol generating components according to Clause C1 or C2, wherein the electrically insulating substrate has a width of 0.5 mm to 10 mm.

[0085] Clause C4. An aerosol generating component according to any one of Clauses C1 to C3, wherein the carbon allotropes are formed in the form of multiple nanotubes.

[0086] Clause C5. An aerosol generating component according to any one of Clauses C1 to C3, wherein the carbon allotropes are formed in the form of open-cell foam.

[0087] Clause C6. An aerosol generating component according to any one of Clauses C1 to C3, wherein the carbon allotropes are formed in the form of multiple sheets.

[0088] Clause C7. An aerosol generating component according to any one of Clauses C1 to C6, wherein the electrically insulating substrate is selected from the group consisting of plastics, glass, paper and ceramics.

[0089] Clause C8. An aerosol generating component according to any one of Clauses C1 to C7, wherein the electrically insulating substrate has a porous structure formed by pillars and gap holes.

[0090] Clause C9. Aerosol generating component according to Clause C8, wherein carbon allotropes are formed on the column.

[0091] Clause C10. Aerosol generating components according to Clause C8 or C9, wherein the gap orifices have an average pore diameter of 0.5 to 40 µm.

[0092] Clause C11. An aerosol generating component according to any one of Clauses C1 to C10, wherein the carbon allotrope comprises one or more graphene layers, wherein, in the presence of more than one graphene layer, at least two graphene layers are not parallel to each other.

[0093] Clause C12. An aerosol generating component according to any one of Clauses C1 to C10, wherein the carbon allotrope is graphite.

[0094] Clause C13. An aerosol generating component according to any one of Clauses C1 to C12, wherein the carbon allotrope has one or more of the following: from 100 to 5500 Wm -1 k -1 Thermal conductivity, from 1 to 2.5 × 10⁻⁶ 6 Sm -1 Its electrical conductivity and nonlinear elasticity.

[0095] Clause C14. An aerosol generating assembly for use as part of a non-flammable aerosol supply system, the aerosol generating assembly comprising: an aerosol generating component according to any one of Clauses C1 to C13; and an aerosol generating material transfer component for supplying aerosol generating material to the aerosol generating component.

[0096] Clause C15. Aerosol generating assembly pursuant to Clause C14, wherein the aerosol generating material transfer component includes a reservoir.

[0097] Clause C16. Aerosol generating assembly according to Clause C14 or C15, wherein the aerosol generating material transfer component traverses the reservoir.

[0098] Clause C17. An aerosol generating assembly according to Clause C14, wherein the aerosol generating material transfer component includes at least one capillary channel having an outlet.

[0099] Clause C18. An aerosol generating assembly according to Clause C17, wherein the outlet is arranged adjacent to the aerosol generating component such that aerosolizable material leaving the outlet comes into direct contact with the aerosol generating component.

[0100] Clause C19. A non-flammable aerosol supply system comprising: an aerosol generating component according to any one of Clauses C1 to C13 or an aerosol generating assembly according to any one of Clauses 14 to 18; and one or more of a power source and a controller.

[0101] Clause C20. A non-flammable aerosol supply system pursuant to Clause C19, wherein a controller is arranged in electrical communication with an aerosol generating component, and wherein the controller is configured to control the supply of power to the aerosol generating component by a power source.

[0102] Clause C21. A non-flammable aerosol supply system pursuant to Clause C20, wherein a controller is configured to actively supply aerosolizable material to an aerosol generating component.

[0103] Clause C22. A non-flammable aerosol supply system pursuant to Clauses C20 or C21, wherein the amount of power supplied to the aerosol generating component is based on the amount of aerosolizable material supplied to the aerosol generating component.

[0104] Clause C23. A non-flammable aerosol supply system pursuant to any of Clauses C20 to C22, wherein when no aerosolizable material is supplied to the aerosol generating component, the controller is configured to supply a baseline power to the aerosol generating component, wherein the baseline power is greater than zero and less than the power supplied to the aerosol generating component when the aerosolizable material is supplied to the aerosol generating component.

[0105] According to another aspect of this disclosure, the following is provided: Clause D1. An aerosol generating component for use as part of a non-flammable aerosol supply system, the aerosol generating component comprising a carbon allotrope loaded on an electrically insulating substrate, wherein at least one elongated aperture extends through the aerosol generating component.

[0106] Clause D2. Aerosol generating component according to Clause D1, wherein the elongated orifice or each elongated orifice is linear.

[0107] Clause D3. Aerosol generating components according to Clause D1, wherein the elongated orifice or each elongated orifice is non-linear.

[0108] Clause D4. An aerosol generating component according to any one of Clauses D1 to D3, wherein a plurality of elongated orifices extend through the aerosol generating component.

[0109] Clause D5. Aerosol generating component according to Clause D4, wherein elongated orifices are arranged parallel to each other.

[0110] Clause D6. An aerosol generating component according to any one of Clauses D1 to D5, wherein the electrically insulating substrate is formed in the form of a strip or rod.

[0111] Clause D7. An aerosol generating component according to Clause D6, wherein at least one elongated hole extends substantially parallel to the longitudinal extent of an electrically insulating substrate, preferably wherein the electrically insulating substrate has a thickness from 100 µm to 4 mm, and / or a width from 0.5 mm to 50 mm, and / or a length from 1 mm to 50 mm.

[0112] Clause D8. An aerosol generating component according to any one of Clauses D1 to D7, wherein the carbon allotrope comprises one or more graphene layers, wherein, in the presence of more than one graphene layer, at least two graphene layers are not parallel to each other.

[0113] Clause D9. An aerosol generating component according to any one of Clauses D1 to D7, wherein the carbon allotrope is graphite.

[0114] Clause D10. An aerosol generating component according to any one of Clauses D1 to D9, wherein the carbon allotrope has one or more of the following: from 100 to 5500 Wm -1 k -1 Thermal conductivity, from 1 to 2.5 × 10⁻⁶ 6 Sm -1 Its electrical conductivity and nonlinear elasticity.

[0115] Clause D11. An aerosol generating component according to any one of Clauses D1 to D10, wherein the electrically insulating substrate is selected from the group consisting of plastics, glass, paper and ceramics.

[0116] Clause D12. An aerosol generating component according to any one of Clauses D1 to D11, wherein the aerosol generating component includes a capillary structure.

[0117] Clause D13. Aerosol generating component according to Clause D12, wherein the electrically insulating substrate has a porous structure formed by pillars and gap holes.

[0118] Clause D14. Aerosol generating component according to Clause D13, wherein carbon allotropes are formed on the column.

[0119] Clause D15. Aerosol generating components according to Clause D13 or D14, wherein the gap orifices have an average pore diameter of 0.5 to 40 µm.

[0120] Clause D16. An aerosol generating component according to any one of Clauses D1 to D15, wherein the carbon allotropes are formed in the form of a plurality of nanotubes.

[0121] Clause D17. An aerosol generating component according to any one of Clauses D1 to D15, wherein the carbon allotropes are formed in the form of open-cell foam.

[0122] Clause D18. An aerosol generating component according to any one of Clauses D1 to D15, wherein carbon allotropes are formed in the form of multiple sheets.

[0123] Clause D19. An aerosol generating component according to any one of Clauses D1 to D18, wherein the elongated orifice or each elongated orifice has a width of 0.1 mm to 1 mm and / or a length of 5 to 95% of the length of the aerosol generating component.

[0124] Clause D20. An aerosol generating assembly for use as part of a non-flammable aerosol supply system, the aerosol generating assembly comprising an aerosol generating component of any one of Clauses D1 to D19 and an aerosol generating material transfer component for supplying aerosol generating material to the aerosol generating component.

[0125] Clause D21. Aerosol generating assembly pursuant to Clause D20, wherein the aerosol generating material transfer component includes a reservoir.

[0126] Clause D22. Aerosol generating assembly pursuant to Clause D21, wherein the aerosol generating component traverses the reservoir.

[0127] Clause D23. An aerosol generating assembly according to Clause D20, wherein the aerosol generating material transfer component includes at least one capillary channel having an outlet.

[0128] Clause D24. An aerosol generating assembly according to Clause D23, wherein the outlet is arranged adjacent to the aerosol generating component such that aerosolizable material leaving the outlet comes into direct contact with the aerosol generating component.

[0129] Clause D25. A non-flammable aerosol supply system comprising: an aerosol generating component of any one of Clauses D1 to D19 or an aerosol generating assembly of any one of Clauses D20 to D24; and one or more of a power source and a controller.

[0130] According to another aspect of this disclosure, the following is provided: Clause E1. A method for preparing an aerosol generating component for use as part of a non-flammable aerosol supply system, the method comprising the steps of: forming a carbon allotrope on an electrically insulating substrate; and forming one or more electrodes in contact with the carbon allotrope.

[0131] Clause E2. The method according to Clause E1, wherein the step of forming one or more electrodes in contact with a carbon allotrope includes a sintering step.

[0132] Clause E3. The method according to Clause E1 or E2, wherein the electrodes or each electrode is selected from copper, silver or gold.

[0133] Clause E4. The method according to any one of Clauses E1 to E3, wherein the carbon allotrope is formed on an electrically insulating substrate by printing.

[0134] Clause E5. The method according to any one of Clauses E1 to E4, wherein the carbon allotrope is formed on an electrically insulating substrate by chemical vapor deposition.

[0135] Clause E6. The method according to any one of Clauses E1 to E5, wherein carbon allotropes are formed on an electrically insulating substrate by laser-induced deposition.

[0136] Clause E7. The method according to any one of Clauses E1 to E6, wherein the carbon allotrope is formed in the form of a plurality of nanotubes or in the form of open-cell foam or in the form of a plurality of sheets.

[0137] Clause E8. The method according to any one of Clauses E1 to E7, wherein the electrically insulating substrate has a hole structure formed by pillars and gap holes.

[0138] Clause E9. The method of Clause E8, wherein carbon allotropes are formed on the column.

[0139] Clause E10. The method according to Clause E9, wherein the gap orifice has an average aperture of 0.5 to 40 µm.

[0140] Clause E11. The method according to any one of Clauses E1 to E10, wherein the carbon allotrope comprises one or more graphene layers, wherein, in the presence of more than one graphene layer, at least two graphene layers are not parallel to each other.

[0141] Clause E12. The method according to any one of Clauses E1 to E10, wherein the carbon allotrope is graphite.

[0142] Clause E13. The method according to any one of Clauses E1 to E12, wherein the carbon allotrope has one or more of the following: from 100 to 5500 Wm -1 k -1Thermal conductivity, from 1 to 2.5 × 10⁻⁶ 6 Sm -1 Its electrical conductivity and nonlinear elasticity.

[0143] Clause E14. The method according to any one of Clauses E1 to E13 includes forming one or more grooves and / or one or more holes in the electrically insulating substrate prior to depositing the carbon allotrope onto the electrically insulating substrate.

[0144] Clause E15. The method according to any one of Clauses E1 to E14, wherein the electrically insulating substrate is selected from the group consisting of plastics, glass, paper and ceramics.

[0145] Clause E16. The method according to Clause E15, wherein the electrically insulating substrate is glass, and wherein the glass is borosilicate glass.

[0146] Clause E17. An aerosol generating component obtained by any one of the methods in Clauses E1 to E16.

[0147] Clause E18. An aerosol generating assembly for use as part of a non-flammable aerosol supply system, the aerosol generating assembly comprising: an aerosol generating component according to Clause E17; and an aerosol generating material transfer component for supplying aerosol generating material to the aerosol generating component.

[0148] Clause E19. Aerosol generating assembly pursuant to Clause E18, wherein the aerosol generating material transfer component includes a reservoir, wherein the aerosol generating component traverses the reservoir.

[0149] Clause E20. Aerosol generating assembly according to Clause E18, wherein the aerosol generating material transfer component includes at least one capillary channel having an outlet.

[0150] Clause E21. An aerosol generating assembly according to Clause E20, wherein the outlet is arranged adjacent to the aerosol generating component such that aerosolizable material leaving the outlet comes into direct contact with the aerosol generating component.

[0151] Clause E22. A non-flammable aerosol supply system comprising: an aerosol generating component of Clause E17 or an aerosol generating assembly according to any one of Clauses E18 to E21; and one or more of a power source and a controller. Attached Figure Description

[0152] Various embodiments will now be described in detail by way of example only, with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of a non-flammable aerosol supply system based on this disclosure (not to scale). Figure 2 This is a side view schematic diagram of the aerosol generating component according to this disclosure; Figure 3 yes Figure 2 A perspective view of the aerosol generating component; Figure 4A It is a schematic diagram of an aerosol generating component according to the present disclosure, wherein the carbon allotrope is formed in the form of one or more graphene layers in the form of open-cell foam; Figure 4B This is a schematic diagram of an aerosol generating component according to the present disclosure, wherein the carbon allotrope is formed in the form of one or more graphene layers in the form of multiple sheets; Figure 4C This is a schematic diagram of an aerosol generating component according to the present disclosure, wherein the carbon allotrope is one or more graphene layers formed in the form of multiple nanotubes. Figure 5A A plan view of an aerosol generation assembly according to the present disclosure is shown; Figure 5B It shows Figure 5A Side view of the aerosol generation component; Figure 5C yes Figure 5A A schematic diagram of an aerosol generation component (the aerosol generation material transfer component is not shown). Figure 6A A perspective view of an aerosol generation assembly according to the present disclosure is shown; Figure 6B yes Figure 6A A schematic diagram of the aerosol generation component; Figure 7A The aerosol generating component according to this disclosure is shown in plan view; Figure 7B yes Figure 7A Heat map of the aerosol generating component, where the aerosol generating component is energized. Figure 8A This is a schematic diagram of an aerosol generating component according to the present disclosure, wherein the aerosol generating component includes a heating section and one or more aerosolizable material supply sections extending from the heating section; Figure 8B yes Figure 8A A thermal diagram of the aerosol generating component, in which the aerosol generating component is powered; Figure 9 A plan view of an aerosol generating component according to the present disclosure is shown; Figure 10A A graph showing the energy density, mass loss, and efficiency of the aerosol generation component according to this disclosure is provided. Figure 10B It shows Figure 10A The table containing the data; and Figure 11 The Raman spectra of the carbon allotropic sample are shown, where the x-axis corresponds to the Raman shift (cm). -1 And the y-axis corresponds to the intensity (count), with D-band peaks, G-band peaks and 2D-band peaks. Detailed Implementation

[0153] This document discusses / describes aspects and features of certain embodiments and implementations. Some aspects and features of certain embodiments and implementations can be conventionally implemented, and for the sake of brevity, these aspects and features are not discussed / described in detail. Therefore, it should be understood that the aspects and features of the aerosol generating components, aerosol generating assemblies, systems, and methods discussed herein, which are not described in detail, can be implemented using any conventional techniques for implementing these aspects and features.

[0154] As described above, this disclosure relates to, but is not limited to, non-flammable aerosol supply systems, articles, aerosol generating components, and aerosol generating parts that generate aerosols from aerosol generating materials (also referred to herein as "aerosolizable materials") without combustion. Examples of such systems include electronic cigarettes and hybrid systems that use combinations of aerosol generating materials to generate aerosols. In some instances, the non-flammable aerosol supply system is an electronic cigarette, also referred to as an electronic cigarette device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosol generating materials is not a requirement of this disclosure. In some instances, the non-flammable aerosol supply system is a hybrid system that uses a combination of aerosol generating materials to generate aerosols, one or more of which can be heated. Each aerosol generating material in such a hybrid system may or may not contain nicotine. In some instances, the hybrid system includes liquid or gel aerosol generating materials and solid aerosol generating materials. Solid aerosol generating materials may include, for example, tobacco or non-tobacco products.

[0155] Throughout the following description, the terms "e-cigarette" and "electronic cigarette" may sometimes be used. However, it should be understood that these terms are used interchangeably with the non-flammable aerosol (vapor) supply system described above.

[0156] In some instances, this disclosure relates to consumables for containing aerosol-generating materials, and these consumables are configured for use with non-flammable aerosol supply devices. Throughout this disclosure, these consumables may be referred to as “articles of manufacture”.

[0157] A non-flammable aerosol supply system typically comprises device parts (also referred to herein as “devices”) and consumable / product parts (also referred to herein as “products”). Device parts typically include power sources and / or controllers. Power sources can typically be electrical power sources, such as rechargeable batteries.

[0158] In some instances, a non-flammable aerosol supply system may include an area for receiving or joining consumables / articles (which may be included in or within the device), an aerosol generator (which may or may not be included in or within the consumables / articles), an aerosol generation area (which may be included in or within the consumables / articles), a housing, a mouthpiece, a filter, and / or an aerosol modifier.

[0159] In some instances, consumables / articles used with non-flammable aerosol supply systems may include aerosol generating materials, aerosol generating material storage areas (also referred to herein as “reservoirs for aerosolizable materials”), aerosol generating material transfer components (e.g., wicks, such as pads), aerosol generators (also referred to herein as “aerosol generating components”), aerosol generating areas (also referred to herein as “aerosol generating chambers”), housings, packaging, filters, mouthpieces, and / or aerosol modifiers.

[0160] The systems described herein typically generate inhalable aerosols through the vaporization of aerosol-generating materials. These aerosol-generating materials may contain one or more active ingredients, one or more flavorings, one or more aerosol-forming materials, and / or one or more other functional materials.

[0161] Aerosol-generating materials may be in liquid or gel form, and may or may not contain active substances and / or flavorants.

[0162] As used herein, the term "active substance" can refer to a physiologically active substance, which is a material intended to achieve or enhance a physiological response. Active substances can be, for example, selected from nutritional supplements, nootropics, and psychoactive agents. Active substances can be naturally occurring or synthetically obtained. Active substances can include, for example, nicotine, caffeine, taurine, theophylline, vitamins such as B6 or B12 or C, melatonin, or components, derivatives, or combinations thereof. Active substances can also include one or more components, derivatives, or extracts of tobacco or another botanical material.

[0163] Aerosol forming agent materials may include one or more components capable of forming aerosols. In some examples, aerosol forming agent materials may include one or more of the following: glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butanediol, erythritol, meso-erythritol, ethyl vanillate, ethyl laurate, diethyl caprylate, triethyl citrate, glyceryl triacetate, a mixture of glyceryl diacetate, benzyl benzoate, benzyl phenylacetate, glyceryl tribocylate, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.

[0164] One or more other functional materials may include one or more of pH adjusters, colorants, preservatives, adhesives, fillers, stabilizers, and / or antioxidants.

[0165] As used herein, the term "component" refers to a part, segment, unit, module, assembly, or the like of an electronic cigarette or similar device that may contain several smaller parts or elements within an outer housing or wall. An electronic cigarette may be formed or constructed from one or more such components, and these components may be removably or detachably connected to each other, or may be permanently joined together during manufacturing to define the entire electronic cigarette. This disclosure applies to, but is not limited to, systems comprising two components detachably connected to each other, and configured, for example, to house a consumable / produce component (also referred to herein as a "cartridge" or "cartomiser") capable of receiving aerosol-generating material, and a device / control unit having a battery for providing electrical power to operate elements for generating vapor from the aerosol-generating material.

[0166] Figure 1 This is a height schematic diagram (not to scale) of an exemplary non-flammable aerosol supply system such as electronic cigarette 10. Electronic cigarette 10 has a generally cylindrical shape extending along a longitudinal axis indicated by dashed lines and includes two main components, namely, a control or power component or segment 20 (which may be referred to herein as a device) and a cartridge assembly or segment 30 (which may be referred to herein as an “article,” “consumable,” “vaporizing cartridge,” or “cartridge”) that operates as a vapor generating component.

[0167] Article 30 includes a storage chamber (also referred to herein as a “reservoir”) 3 containing an aerosolizable material, which includes, for example, a liquid formulation from which an aerosol is generated. The liquid formulation may or may not contain nicotine. As an example, the aerosolizable material may include about 1 to 3% nicotine and 50% glycerin, with the remainder comprising primarily propylene glycol, and may also include other components such as water or flavorings. The storage chamber 3 is in the form of a storage tank, i.e., a container or receiver in which the aerosolizable material can be stored, allowing the aerosolizable material to move and flow freely within the boundaries of the container or receiver (if liquid). Alternatively, the storage chamber 3 may contain a large amount of absorbent material, such as cotton filler or glass fiber, to hold the aerosolizable material within a porous structure. The storage chamber 3 may be sealed during manufacturing after filling so that it is disposable after the aerosolizable material has been consumed, or it may have an inlet port or other opening through which new aerosolizable material can be added. Article 30 also includes an electro-aerosol generating component 4 located outside the storage chamber 3 for generating an aerosol through the vaporization of the aerosolizable material. In several instances, the aerosol generating component is a heating element (heater) that heats the aerosolizable material by the passage of an electric current (via resistance or induction heating) to raise the temperature until it evaporates. An aerosol generating material transfer component ( Figure 1 (Not shown in the diagram), for example, a liquid conduit arrangement such as a wick or other porous element can be provided to deliver aerosolizable material from storage chamber 3 to aerosol generating component 4. The aerosol generating material transfer component may have one or more portions located inside storage chamber 3 to absorb aerosolizable material and transfer it by wicking or capillary action to other portions of the aerosol generating material transfer component in contact with aerosol generating component 4. The aerosolizable material is thus vaporized and replaced by new aerosolizable material transferred from the aerosol generating material transfer component to aerosol generating component 4.

[0168] Other arrangements of heaters combined with a suction core, or parts performing the same function, are sometimes referred to as atomizers or atomizer assemblies (which may be referred to herein as "aerosol generating assemblies"). Figure 1 Compared to a highly schematic representation, various designs are possible, in which parts can be arranged differently. For example, the absorbent core can be a component completely separate from the aerosol generating component.

[0169] In some cases, the aerosol generating material transfer component 4 (e.g., a liquid conduit) for delivering the liquid used to generate vapor can be at least partially formed by one or more slots, tubes, or channels between the storage chamber and the aerosol generating component, the slots, tubes, or channels being narrow enough to support capillary action to draw the source liquid from the storage chamber and deliver it for vaporization. Generally, an atomizer can be considered as an aerosol generating component 4 capable of generating vapor from an aerosolizable material delivered to the atomizer and an aerosol generating material transfer component (e.g., a liquid conduit) capable of delivering or transferring liquid from the storage chamber 3 or a similar liquid reservoir to the aerosol generating component via capillary force.

[0170] Typically, the aerosol generating component is at least partially located within the aerosol generating chamber, which forms part of the airflow channel through the electronic cigarette / system. Vapor generated by the aerosol generating component is driven into the chamber, and as air flows through the chamber, above and around the aerosol generating component, it collects the generated vapor, thereby condensing it to form the desired aerosol.

[0171] return Figure 1 The cartridge assembly 30 also includes a mouthpiece 35 with an opening or air outlet through which the user can inhale the aerosol generated by the aerosol generating component 4 and delivered through the airflow channel.

[0172] The power unit 20 includes a battery cell 5 (also referred to herein as a battery, and which may be rechargeable) to provide power to the electrical components of the electronic cigarette 10, particularly the aerosol generating unit 4. Additionally, a printed circuit board 28 and / or other electronic devices or circuits are present for overall control of the electronic cigarette 10. When vapor is needed, for example, in response to a signal from a pressure sensor or airflow sensor (not shown), the control electronics / circuit connect the aerosol generating element 4 to the battery 5. The pressure sensor or airflow sensor detects inhalation on the system 10, during which air enters through one or more air inlets 26 in the wall of the power unit 20 to flow along an airflow channel. When the aerosol generating unit 4 receives power from the battery cell 5, the aerosol generating unit 4 evaporates an aerosolizable material delivered from the storage chamber 3 to generate an aerosol, which is then inhaled by the user through an opening in the mouthpiece 35. As the user inhales at the mouthpiece 35, the aerosol is transported to the mouthpiece 35 along an airflow channel (not shown) that connects the air inlets 26 to an air outlet. Therefore, the airflow path through the electronic cigarette is defined between the air inlet leading to the atomizer (which may or may not be located in the power component 20) and the air outlet at the mouthpiece. In use, the airflow direction along this airflow path is from the air inlet to the air outlet, such that the atomizer can be described as being arranged downstream of the air inlet and upstream of the air outlet.

[0173] In this particular example, the power component 20 and the cartridge assembly 30 are separate components that are detachable from each other by separating them in a direction parallel to the longitudinal axis, such as... Figure 1 As indicated by the solid arrows in the diagram. When the device 10 is in use, components 20 and 30 are connected together by mating engagement elements 21 and 31 (e.g., screws, magnetic, or bayonet fittings), which provide mechanical and electrical connectivity between the power section 20 and the cartridge assembly 30. However, this is only an exemplary arrangement, and different components may be distributed differently between the power section 20 and the cartridge assembly 30, and may include other components and elements. The two sections 20 and 30 can be as follows: Figure 1The longitudinal construction or different constructions (such as parallel, side-by-side arrangements) are connected end-to-end. The non-flammable atomizer supply system 10 may or may not be generally cylindrical and / or have a generally longitudinal shape. Any segment or two segments may be intended to be discarded and replaced when depleted (e.g., the reservoir is empty or the battery is flat), or intended for multiple uses achieved by actions such as refilling the reservoir, recharging the battery, or replacing the atomizer. Alternatively, the electronic cigarette 10 may be an integrated device (disposable or refillable / rechargeable) that cannot be divided into two or more parts, in which case all components are contained within a single body or housing. Examples of the invention are applicable to any of these constructions and other constructions that a person skilled in the art will recognize.

[0174] As described above, one type of aerosol generating component (such as a heating element) that can be used in the atomizing portion (the portion configured to generate vapor from a source liquid) of an electronic cigarette 10 combines heating and liquid delivery functions through a combination of conductivity (resistance) and porosity. Note that conductivity (resistance) refers to a component having the ability to generate heat in response to the flow of an electric current. This flow can be imparted by so-called resistance heating or induction heating. The aerosol generating component can be in sheet form, i.e., a planar shape with a thickness many times smaller than its length or width. This planar aerosol generating component can define a curved plane, and in these cases, reference to a planar aerosol generating component forming a plane refers to an imaginary plane forming the best-fit plane through the component.

[0175] The aerosol generating component may include appropriately sized voids and / or gaps to provide capillary forces for wicking aerosolizable materials (e.g., liquids). Therefore, the aerosol generating component can also be considered porous to facilitate the absorption and distribution of aerosolizable materials (e.g., liquids). Furthermore, the presence of voids and / or gaps can mean that air can permeate through the aerosol generating component. Moreover, at least a portion of the aerosol generating component is conductive and therefore suitable for resistance heating, whereby an electric current flowing through a resistive material generates heat.

[0176] An aerosol generating component (e.g., which is flat and / or sheet-like) may be arranged within a non-flammable aerosol supply system (e.g., an electronic cigarette) such that the aerosol generating component is located within an aerosol generating chamber forming part of an airflow channel. The aerosol generating component may be oriented within the chamber such that airflow through the chamber can flow in a surface direction (i.e., substantially parallel to the plane of the aerosol generating component). Examples of this configuration can be found in WO 2010 / 045670 and WO 2010 / 045671, the contents of which are incorporated herein by reference in their entirety. Air can thus flow through the aerosol generating component and vapor is collected. Thus, aerosol generation becomes effective. In an alternative embodiment, the aerosol generating component may be oriented within the chamber such that airflow through the chamber can flow in a direction substantially transverse to the surface direction (i.e., substantially orthogonal to the plane of the aerosol generating component). An example of this configuration can be found in WO 2018 / 211252, the contents of which are incorporated herein by reference in their entirety.

[0177] Aerosol generating components can have a high degree of porosity. High porosity ensures that the heat generated by the aerosol generating component is primarily used for liquid evaporation and achieves high efficiency. Porosity greater than 50% is conceivable. In one embodiment, the porosity of the aerosol generating component is 50% or greater, 60% or greater, or 70% or greater.

[0178] The aerosol generating component can form a generally flat structure, including first and second surfaces. The generally flat structure can take the form of any two-dimensional shape, such as a circle, semicircle, triangle, square, rectangle, and / or polygon. The aerosol generating component can have a uniform thickness.

[0179] When the aerosol generating component is formed of a resistive material, current is allowed to flow through it to generate heat (so-called Joule heating). The resistance of the aerosol generating component can be appropriately selected for this purpose. For example, the aerosol generating component can have a resistance of 2 ohms or less, such as 1.8 ohms or less, 1.7 ohms or less, 1.6 ohms or less, 1.5 ohms or less, 1.4 ohms or less, 1.3 ohms or less, 1.2 ohms or less, 1.1 ohms or less, 1.0 ohms or less, 0.9 ohms or less, 0.8 ohms or less, 0.7 ohms or less, 0.6 ohms or less, or 0.5 ohms or less. Parameters of the aerosol generating component, such as material, thickness, width, length, porosity, etc., can be selected to provide the desired resistance. A relatively low resistance will help draw higher power from the power source, which can be beneficial for producing a high aerosolization rate. On the other hand, the resistance should not be so low as to compromise the integrity of the aerosol generator. For example, the resistance should not be lower than 0.5 ohms.

[0180] In one aspect of this disclosure, an aerosol generating component 100 is provided for use as part of a non-flammable aerosol supply system, the aerosol generating component 100 including a carbon allotrope 101 loaded on an electrically insulating substrate 102.

[0181] Figures 2 to 9 An example of an aerosol generating component 100 is shown.

[0182] It has been found that, in the case of a non-flammable aerosol supply system, the aerosol generating component 100 exhibits the desired heating and aerosolization performance.

[0183] The carbon allotrope 101 is loaded onto the electrically insulating substrate 102. In this way, the carbon allotrope 101 is loaded directly or indirectly onto the electrically insulating substrate 102.

[0184] The electrically insulating substrate 102 may be porous. Alternatively, the electrically insulating substrate 102 may be non-porous.

[0185] The electrically insulating substrate 102 may comprise one or more layers. At least one layer may be porous. At least one layer may be non-porous. For example, at least one layer may be porous and at least one layer may be non-porous.

[0186] At least one of these layers can be formed in the form of a coating.

[0187] The electrically insulating substrate 102 may include at least two layers, wherein the layer in direct contact with the carbon allotrope 101 is porous, and at least one other layer is non-porous.

[0188] The electrically insulating substrate 102 may include at least two layers, wherein the layer in direct contact with the carbon allotrope 101 is non-porous, and at least one other layer is porous.

[0189] The electrically insulating substrate 102 can be made of any suitable conductive material. Specifically, the electrically insulating substrate 102 can be thermally insulating (in this case, the substrate can be referred to as "electrically insulating and thermally insulating substrate 102"). The electrically insulating substrate 102 may have a strength not exceeding 5 Wm. -1 k -1 Thermal conductivity. The electrically insulating substrate 102 may have a thermal conductivity of no more than 3 W / m². -1 k -1 Thermal conductivity. The electrically insulating substrate 102 may have a thermal conductivity of not more than 2 W / m. -1 k -1 Thermal conductivity. The electrically insulating substrate 102 may have a thermal conductivity of not more than 1 W / m. -1 k -1 The thermal conductivity. The electrically insulating substrate 102 may have a thermal conductivity of not more than 0.5 W / m. -1 k -1 The thermal conductivity. The electrically insulating substrate 102 may have a thermal conductivity of not more than 0.2 W / m. -1 k -1 The thermal conductivity. The electrically insulating substrate 102 may have a thermal conductivity of not more than 0.1 W / m. -1 k -1 Thermal conductivity.

[0190] For example, the electrically insulating substrate 102 can be selected from the group consisting of plastics, glass, paper, and ceramics. For example, when the electrically insulating substrate 102 comprises one or more layers, each layer can be independently selected from the group consisting of plastics, glass, paper, and ceramics.

[0191] The plastic may be selected from polysulfone (PSU), poly(ether sulfone) (PES), polyimide (PI), poly(phenylene sulfide) (PPS), polyether ether ketone (PEEK), and polyether ketone (PEK). In some embodiments, the polyimide (PI) is selected from polyether imide (PEI) and polyamide-imide (PAI). In some embodiments, the polyimide is poly(4,4'-oxydiphenylene-pyromellitictetracarboxyimide). Poly(4,4'-oxydiphenylene-pyromellitictetracarboxyimide) is commercially available from DuPont under the trade name Kapton® HN (and other Kapton® products).

[0192] The glass can be selected from the group consisting of silicate glass and non-silicate glass. In some embodiments, the silicate glass is borosilicate glass or quartz glass (fused silica). The glass can be flexible. The glass can be non-porous.

[0193] The electrically insulating substrate 101 (e.g., at least one layer thereof) may have a porous structure formed by pillars and interstitial pores (also referred to herein as voids and / or gaps). A carbon allotrope 101 may be formed on the pillars to form a coating. For example, the interstitial pores of the coated electrically insulating substrate may have an average pore diameter of 0.5 to 40 µm (although this can vary). The average pore diameter may be a mean pore diameter or a median pore diameter. Methods for determining the average pore diameter may include (but are not limited to) mercury porosimetry or gas adsorption. These methods are familiar to those skilled in the art.

[0194] The electrically insulating substrate 102 can be formed in the form of a sheet (which may be curved or substantially flat). The electrically insulating substrate 102 can be substantially flat. In some embodiments, the electrically insulating substrate 102 can be in the form of a plate, strip (e.g., ...). Figure 2 , Figure 3 , Figure 5A , Figure 5B , Figure 6A and Figure 6B (As shown) or in the form of a rod. Figures 2 to 9 As shown, the electrically insulating substrate 102 may be elongated.

[0195] In some embodiments, the cross-sectional area of ​​the electrically insulating substrate 102 perpendicular to its longitudinal direction (e.g., length) is polygonal (e.g., square, rectangular, or triangular). Alternatively, the cross-sectional area of ​​the electrically insulating substrate 102 perpendicular to its longitudinal direction (e.g., length) is curved (e.g., circular, oval, or elliptical).

[0196] In some embodiments, the electrically insulating substrate 102 has a thickness from 100 µm to 4 mm. In some embodiments, the electrically insulating substrate 102 has a thickness from 200 µm to 3 mm. In some embodiments, the electrically insulating substrate 102 has a thickness from 400 µm to 2 mm.

[0197] In some embodiments, the electrically insulating substrate 102 has a thickness of 5 µm to 500 µm. In some embodiments, the electrically insulating substrate 102 has a thickness of 10 µm to 500 µm. In some embodiments, the electrically insulating substrate 102 has a thickness of 50 µm to 500 µm. In some embodiments, the electrically insulating substrate 102 has a thickness from 100 µm to 500 µm. In some embodiments, the electrically insulating substrate 102 has a thickness from 50 µm to 300 µm. In some embodiments, the electrically insulating substrate 102 has a thickness from 100 µm to 200 µm. For example, the thickness of the electrically insulating substrate 102 is... Figure 2 The middle is composed of "T" S "express.

[0198] In some embodiments, the electrically insulating substrate 102 has a length of 1 mm to 50 mm. In some embodiments, the electrically insulating substrate 102 has a length of 2 mm to 40 mm. In some embodiments, the electrically insulating substrate 102 has a length from 5 mm to 30 mm. In some embodiments, the electrically insulating substrate 102 has a length of 10 mm to 30 mm. In some embodiments, the electrically insulating substrate 102 has a length of 10 mm to 25 mm. In some embodiments, the electrically insulating substrate 102 has a length of 10 mm to 20 mm. In some embodiments, the electrically insulating substrate 102 has a length of 12 mm to 18 mm. For example, the length of the electrically insulating substrate 102 is... Figure 2 The middle is composed of "L" S "express.

[0199] In some embodiments, the electrically insulating substrate 102 has a width from 0.5 mm to 50 mm. In some embodiments, the electrically insulating substrate 102 has a width from 0.5 mm to 20 mm. In some embodiments, the electrically insulating substrate 102 has a width from 0.5 mm to 10 mm. In some embodiments, the electrically insulating substrate 102 has a width from 0.5 mm to 5 mm. In some embodiments, the electrically insulating substrate 102 has a width from 1 mm to 50 mm. In some embodiments, the electrically insulating substrate 102 has a width from 1 mm to 20 mm. In some embodiments, the electrically insulating substrate 102 has a width from 1 mm to 10 mm. In some embodiments, the electrically insulating substrate 102 has a width from 1 mm to 5 mm. In some embodiments, the electrically insulating substrate 102 has a width from 1 mm to 3 mm. For example, in... Figure 3 The middle is composed of "W" S "" indicates the width of the electrically insulating substrate 102.

[0200] In some embodiments, the carbon allotrope 101 has a length of 1 mm to 50 mm. In some embodiments, the carbon allotrope 101 has a length of 2 mm to 40 mm. In some embodiments, the carbon allotrope 101 has a length of 5 mm to 30 mm. In some embodiments, the carbon allotrope 101 has a length of 10 mm to 30 mm. In some embodiments, the carbon allotrope 101 has a length of 10 mm to 25 mm. In some embodiments, the carbon allotrope 101 has a length of 10 mm to 20 mm. In some embodiments, the carbon allotrope 101 has a length of 12 mm to 18 mm.

[0201] In some embodiments, the carbon allotrope 101 has a width from 0.5 mm to 50 mm. In some embodiments, the carbon allotrope 101 has a width from 0.5 mm to 20 mm. In some embodiments, the carbon allotrope 101 has a width from 0.5 mm to 10 mm. In some embodiments, the carbon allotrope 101 has a width from 0.5 mm to 5 mm. In some embodiments, the carbon allotrope 101 has a width from 1 mm to 50 mm. In some embodiments, the carbon allotrope 101 has a width from 1 mm to 20 mm. In some embodiments, the carbon allotrope 101 has a width from 1 mm to 10 mm. In some embodiments, the carbon allotrope 101 has a width from 1 mm to 5 mm. In some embodiments, the carbon allotrope 101 has a width from 1 mm to 3 mm.

[0202] The aerosol generating component 100 may include capillary structures. The capillary structures facilitate the efficient delivery of aerosolizable materials through the body structure of the aerosol generating component 100 and / or onto the surface of one or more layers of the carbon allotrope 101.

[0203] In some embodiments, the carbon allotrope 101 includes a capillary structure. Alternatively or additionally, the electrically insulating substrate 102 may include a capillary structure. For example, as described above, the capillary structure may be provided by the porous structure of the electrically insulating substrate 102 (when present). The capillary structure may additionally or alternatively be provided by one or more channels or grooves in the electrically insulating substrate 102 (when present).

[0204] The carbon allotrope 101 may include pores. For example, the carbon allotrope 101 may be porous. The carbon allotrope 101 may be permeable, for example, permeable to liquids and / or gases.

[0205] The carbon allotrope 101 may be at least partially exposed. The carbon allotrope 101 may be a monolithic material.

[0206] The carbon allotrope 101 may have a heating surface. The heating surface may be partially or completely exposed. During use, aerosols may be emitted from the heating surface.

[0207] In some embodiments, the carbon allotrope 101 includes a capillary structure, and the electrically insulating substrate 102 also includes a capillary structure. In other embodiments, the carbon allotrope 101 includes a capillary structure, and the electrically insulating substrate 102 is non-porous (and does not include a capillary structure). It has been found that providing a non-porous substrate 102 reduces the exposure of the carbon allotrope to the bulk aerosolizable material during use (compared to embodiments having a porous substrate 102), thereby improving the efficiency of the aerosol component 100.

[0208] The aerosol generating component 100 includes a carbon allotrope 101 loaded on an electrically insulating substrate 102.

[0209] Carbon allotropes have been found to provide efficient aerosol-generating components. They provide a carbonaceous surface for the distribution and aerosolization of aerosolizable materials during use. When heated to their aerosolization temperature, the carbonaceous surface possesses high surface free energy, resulting in high wettability. In this way, thin layers of aerosolizable material can be uniformly distributed on the carbonaceous surface of the carbon allotropes and effectively aerosolized when heated to their aerosolization temperature. Furthermore, carbon allotropes exhibit high power density, low thermal mass, and the ability to form thin, small-volume aerosolizable materials on a given surface area (as opposed to materials that cannot be thinly formed on their surface). This provides efficient energy transfer to the aerosolizable material during use.

[0210] Carbon allotropes can include carbon atoms configured to contain multiple carbon-carbon bonds located in the same plane. For example, carbon allotropes can include graphite. When a carbon allotrope includes graphite, the allotrope comprises stacked layers of multiple carbon atoms, with each carbon atom bonded to three adjacent carbon atoms in that layer, wherein each bond is located in the same plane to form a hexagonal lattice structure. Non-covalent bonding exists between the stacked layers.

[0211] Therefore, graphite comprises multiple stacked carbon layers, wherein the carbon layers are parallel to each other. There are two forms of graphite: α-graphite, where the layers are stacked in an ABA fashion; and β-graphite, where the layers are stacked in an ABC fashion.

[0212] Carbon allotropes can also include graphene. For example, a carbon allotrope can be graphene. In the case where the carbon allotrope is graphene, a single layer of carbon atoms (i.e., a carbon layer one atom thick) is arranged to form a hexagonal lattice structure.

[0213] It has been found that the use of graphene provides a particularly effective aerosol generating component. Advantageously, graphene's high thermal and electrical conductivity allows it to effectively dissipate heat, reduce temperature variations, and mitigate the severity of hot spots when hot spots (localized areas of elevated temperature that may occur during use when a portion of the heated aerosol generating component dries out) form. Consequently, the aerosol generating component can operate at high power levels with a reduced risk of hot spots causing damage to the component. Furthermore, graphene is elastic and therefore conforms to thermal expansion during use (e.g., thermal expansion of the electrically insulating substrate). Thus, the aerosol generating component resists degradation due to the difference in the coefficients of thermal expansion between graphene and the electrically insulating substrate 102.

[0214] In the case of carbon allotropes including graphene, more than one graphene layer may exist.

[0215] When more than one graphene layer 101 is loaded on an electrically insulating substrate 102, at least two graphene layers 101 can be non-parallel relative to each other. By "non-parallel," we mean that an imaginary plane passing through one graphene layer 101 (or a best-fit imaginary plane passing through a non-planar graphene layer 101) is not parallel to an imaginary plane passing through another graphene layer 101 (or a best-fit imaginary plane passing through another non-planar graphene layer 101). In use, the graphene layers 101 are electrically connected to form current paths. By providing non-parallel graphene layers, a porous graphene structure can be provided. The combination of graphene's porosity and low surface energy at typical aerosolization temperatures allows aerosolizable materials to be efficiently distributed not only on the outermost surface of graphene but also on the bulk structure of graphene. In effect, aerosolizable materials can be provided in close contact with the increased surface area of ​​the heating material provided by the graphene layers. This provides highly efficient and effective aerosolization performance.

[0216] For example, at least three, at least four, at least five, at least six, at least eight, or at least ten of the graphene layers 101 are not parallel to each other.

[0217] When more than one graphene layer 101 is loaded on an electrically insulating substrate 102, at least two graphene layers 101 may be parallel to each other. For example, the carbon allotrope 101 may be a bilayer graphene.

[0218] For example, such as Figures 4A to 4C As shown, some graphene layers 101 can directly contact the electrically insulating substrate 101, while some graphene layers 101 can be disposed on top of other graphene layers 101.

[0219] What will be understood is the assumption of other carbon allotropes 101.

[0220] In some preferred embodiments, the carbon allotrope 101 comprises disordered graphite and / or amorphous carbon. In some preferred embodiments, the carbon allotrope 101 is selected from the group consisting of disordered graphite, amorphous carbon, or combinations thereof.

[0221] The Raman spectrum of carbon allotrope 101 includes the G and D bands. The Raman spectrum of carbon allotrope 101 also includes the 2D band.

[0222] In some preferred embodiments, the Raman spectrum of carbon allotrope 101 includes approximately 1500 cm⁻¹. -1 Approximately 1650 cm -1 The G-band peaks are located within the Raman shift range. In this embodiment, the Raman spectrum of carbon allotrope 101 can include a range from approximately 1250 cm⁻¹. -1 Approximately 1400 cm -1 The D-band peaks are located within the Raman shift range. In this embodiment, the Raman spectrum of the carbon allotrope 101 can include a range from approximately 2600 cm⁻¹. -1 Approximately 2750 cm -1 2D band peaks within the Raman shift range.

[0223] For example, in some preferred embodiments, the Raman spectrum of carbon allotrope 101 includes approximately 1550 cm⁻¹. -1 Approximately 1590 cm -1 The G-band peak is located within the Raman shift range. In such an embodiment, the Raman spectrum of carbon allotrope 101 can include a range from approximately 1310 cm⁻¹. -1 Approximately 1340 cm -1 The D-band peak is located within the Raman shift range. In this embodiment, the Raman spectrum of carbon allotrope 101 can be contained within approximately 2620 cm⁻¹. -1 Approximately 2680 cm -1 2D band peaks within the Raman shift range.

[0224] Intensity of D band peak I D The intensity of the G-band peak I G The ratio I D / I G It can range from approximately 0.8 to approximately 2. Ratio I D / I G It can range from approximately 0.9 to approximately 1.9. Ratio I D / I G It can range from about 1 to about 1.8.

[0225] The G-band peak can have a value of approximately 30 cm⁻¹. -1 Approximately 100 cm -1The full width at half maximum (FWHM) at the G-band peak can range from approximately 30 cm⁻¹. -1 Approximately 70 cm -1 FWHM.

[0226] 2D bands can follow either a Gaussian curve model or a Lorentzian curve model.

[0227] Any of the above-mentioned features associated with Raman spectroscopy can be combined. For example, in some preferred embodiments, the Raman spectrum of carbon allotrope 101 includes G and D bands, wherein the G band peak is at approximately 1500 cm⁻¹. -1 Approximately 1650 cm -1 Within the Raman shift range, and the D-band peak is at approximately 1250 cm⁻¹. -1 Approximately 1400 cm -1 Within the Raman shift range, the intensity of the D band peak I D The intensity of the G-band peak I G The ratio I D / I G It ranges from about 0.8 to about 2. For example, in some preferred embodiments, the Raman spectrum of carbon allotrope 101 includes G and D bands, wherein the G band peak is at about 1550 cm⁻¹. -1 Approximately 1590 cm -1 Within the Raman shift range, and the D-band peak is at approximately 1310 cm⁻¹. -1 Approximately 1340 cm -1 Within the Raman shift range, the intensity of the D band peak I D The intensity of the G-band peak I G The ratio I D / I G It is from about 1 to about 1.8.

[0228] For example, in some preferred embodiments, the carbon allotrope 101 is porous. For example, in some preferred embodiments, the carbon allotrope 101 is formed in the form of foam. The carbon allotrope 101 is conductive.

[0229] In this paper, Raman microscopy was used to measure Raman spectra. A laser wavelength of 638 nm was used for Raman microscopy. A grating with 1800 grooves / mm was used for Raman microscopy. A laser power of 10.9 mW was used for Raman microscopy. A 5-second acquisition time was used for Raman microscopy. Twenty accumulations were used for Raman microscopy. A 300 µm confocal pinhole was used for Raman microscopy. The measurement range was from approximately 1000 cm⁻¹. -1up to approximately 3000 cm -1 Raman microspectroscopy was performed within the specified wavelength range. In this study, Raman microspectroscopy was performed using a microscope objective with a 50x LWD (long working distance) and a 0.8 NA (numerical aperture). A HoribaXplora Plus Raman microspectrometer was used for the procedure. The Raman microspectroscopy was performed at 21°C. The carbon allotrope 101 subjected to Raman microspectroscopy may have been unused; that is, the carbon allotrope 101 had not yet been used to generate aerosols and / or had not been heated to the typical aerosolization temperature (after the fabrication of the carbon allotrope 101).

[0230] The inventors have used Raman microscopy to analyze various carbon allotropes 101 samples.

[0231] Each carbon allotrope 101 sample was prepared by laser irradiation of a polyimide (poly(4,4'-oxydiphenylene-pyromellitictetracarboximide), Kapton® HN, DuPont) substrate 102 (an electrically insulating substrate). Each polyimide substrate had a length of approximately 4.5 mm, a width of approximately 4.5 mm, and a thickness of approximately 125 µm, and was shaped into a rectangular prism. This involved irradiating approximately 4.5 mm by approximately 2 mm (i.e., approximately 9 mm) of each polyimide substrate with a laser beam. 2 The area of ​​the rectangle was used to form carbon allotropes 101. Raman microspectroscopy was performed on each carbon allotrope 101 sample. Each carbon allotrope 101 sample was porous and conductive.

[0232] Unconstrained by theory, Raman spectroscopy is considered a non-destructive vibrational spectroscopy technique that uses a laser to excite bonds within a sample (e.g., carbon) and interprets the inelastic scattering of these bond vibrations as relative Raman shifts. Inelastic scattering from interactions with the sample produces relative Raman shifts, thereby generating spectra that can be used to interpret the characteristics and / or properties of the sample. To characterize carbon allotropy 101 samples, studies can be conducted typically at approximately 1329 cm⁻¹. -1 The D band observed at approximately 1579 cm⁻¹ -1 The G-band observed at [location], and typically at approximately 2630 cm [location] -1 The peak position of the 2D band observed. The D band can be called the "disorder band" and is the sp. of carbon in the sample. 3 Indicator of hybridization. The G-band, also known as the "graphene band," is used to determine the sp(s) structure of carbon within a sample. 2Hybridization. For example, the Raman spectrum of a pristine graphene sample will typically include a high-intensity, narrow G band and no D band. The Raman spectrum of a graphite sample typically includes both G and D bands, with the D band being less intense than the G band. D / I G The ratio can be determined by the intensity (au) of the D band peak (I) D The count of ) and the intensity of the G-band peak (I) G The 2D bands are used to count and can be used to determine the presence of carbon allotropes within a sample. The 2D bands can also be used to determine the morphology of allotropes by interpreting the area under the curve and the peak position. For example, crystalline graphite typically exhibits a sharp and narrow peak curve conforming to a Lorentz curve fitting model, while the 2D bands of samples containing amorphous carbon typically exhibit a wider and flatter band conforming to a Gaussian curve fitting model. The full width at half maximum (FWHM) of a peak can also be used to determine the crystallinity within a sample. The FWHM is measured by determining the width of the peak in question at half the total intensity of the sample.

[0233] Raman microspectroscopy involves measuring the Raman spectrum of each sample using a Horiba Xplora Plus Raman microspectrometer and the following parameters: A laser wavelength of 638 nm; A grating with 1800 slots / mm; 5 seconds to acquire; 20 cumulative measurements (20 spectra); 10.9 mW laser power; 300 µm confocal pinhole; and From approximately 1000 cm -1 Approximately 3000 cm -1 The wavelength range.

[0234] Raman microscopy was performed at 21°C.

[0235] The carbon allotrope 101 sample subjected to Raman microscopy was not used.

[0236] The Raman spectra of each carbon allotrope 101 sample include the G band and the D band, with the G band peak at approximately 1550 cm⁻¹. -1 Approximately 1590 cm -1 Within the Raman shift range, and the D-band peak is at approximately 1310 cm⁻¹. -1 Approximately 1340 cm -1 Within the Raman shift range, the intensity of the D band peak I D The intensity of the G-band peak I G The ratio I D / I GThe values ​​range from 1 to 1.8. The Raman spectra of each carbon allotrope 101 sample are from approximately 2620 cm⁻¹. -1 Approximately 2680 cm -1 The Raman shift range includes 2D band peaks. In the Raman spectra of each carbon allotrope 101 sample, the G band peak has a range from approximately 45 cm⁻¹. -1 Approximately 62 cm -1 The full width at half maximum (FWHM) of the peaks. In the Raman spectra of each carbon allotrope 101 sample, the 2D bands typically follow a Lorentz curve fitting model.

[0237] Raman spectra of each carbon allotrope 101 sample indicate that these samples include disordered graphite, amorphous carbon, or combinations thereof.

[0238] Figure 11 Raman spectra of one of the carbon allotropes 101 samples are shown. The sample was not used. Figure 11 As shown, at approximately 1573 cm -1 A G-band peak was observed at approximately 1320 cm⁻¹. -1 A D-band peak was observed at approximately 2630 cm⁻¹. -1 A 2D band peak was observed at [location]. The intensity of the G band peak is I. G The intensity of the D band peak I D The ratio I G / I D It is approximately 1.6. The G-band peak has a length of approximately 62 cm⁻¹. -1 The FWHM 2D band follows a Lorentz curve fitting model.

[0239] The inventors have discovered that carbon allotropes 101 comprising disordered graphite, amorphous carbon, or combinations thereof provide particularly effective aerosol generating components. Such carbon allotropes 101 have been found to effectively dissipate heat, reduce temperature variations, and mitigate the severity of any hot spots. This carbon allotrope 101 exhibits low electrical resistance (and high electrical conductivity), making it particularly suitable for use in non-flammable aerosol supply systems. Such carbon allotropes 101 also promote efficient liquid distribution, for example, on and / or within the surface of the carbon allotrope.

[0240] Carbon allotrope 101 can have 100 Wm -1 k -1 Up to 5500 Wm -1 k -1 Thermal conductivity. Carbon allotrope 101 can have 100 W / m². -1 k -1 Up to 4000 Wm -1 k -1 Thermal conductivity. Carbon allotrope 101 can have 100 W / m². -1k -1 Up to 2000 Wm -1 k -1 Thermal conductivity. Carbon allotrope 101 can have 150 W / m². -1 k -1 Up to 1000 Wm -1 k -1 Thermal conductivity. Carbon allotrope 101 can have 180 W / m². -1 k -1 Up to 700 Wm -1 k -1 Thermal conductivity. Carbon allotropes 101 can have thermal conductivity ranging from 200 W / m². -1 k -1 Up to 500 Wm -1 k -1 Thermal conductivity.

[0241] Carbon allotropes 101 can have a range from 1 Sm -1 Up to 2.5×10 6 Sm -1 The electrical conductivity. Carbon allotrope 101 can have a conductivity of 100 Sm. -1 Up to 1.0×10 6 Sm -1 The electrical conductivity. Carbon allotropes 101 can have electrical conductivity ranging from 200 Sm. -1 Up to 100,000 Sm -1 The electrical conductivity. Carbon allotrope 101 can have 400 Sm. -1 Up to 50000 Sm -1 The electrical conductivity. Carbon allotropes 101 can have electrical conductivity ranging from 500 Sm. -1 Up to 10000 Sm -1 The electrical conductivity. Carbon allotrope 101 can have a conductivity of 600 Sm. -1 Up to 5000 Sm -1 The electrical conductivity. Carbon allotrope 101 can have 800 Sm. -1 Up to 3000 Sm -1 The electrical conductivity. Carbon allotrope 101 can have 900 Sm. -1 Up to 1300 Sm -1 The electrical conductivity.

[0242] Carbon allotropes 101 can exhibit nonlinear elasticity.

[0243] In embodiments including one or more graphene layers 101, the one or more layers can be provided in various forms. For example, the one or more graphene layers 101 can be formed into multiple three-dimensional structures. The three-dimensional graphene structures can be selected from cubes, cuboids, cones, cylinders (e.g., tubes), spheres, pyramids, and / or prisms. Those skilled in the art will be familiar with methods for producing three-dimensional graphene structures, including (but not limited to) arc discharge, laser ablation, high-pressure carbon monoxide dismutation, and chemical vapor deposition.

[0244] Carbon allotropes 101 can be formed in the form of foam. Carbon allotropes 101 can be formed in the form of open-cell foam. Carbon allotropes 101 may include capillary structures. Open-cell foam may include capillary structures.

[0245] exist Figures 4A to 4C The image shows an instance in which one or more layers 101 can be provided.

[0246] like Figure 4A As shown, one or more graphene layers 101 can be formed in the form of an open-cell foam (which may be referred to herein as "graphene foam"; see reference, for example, High-Resolution Laser-Induced Graphene. Flexible Electronics beyond the Visible Limit; Michael G. Stanford, et al., ACS Applied Materials & Interfaces 2020 12 (9), 10902-10907). Graphene foam may include capillary structures. Graphene foam can be formed by vapor deposition, such as chemical vapor deposition. Graphene foam includes a three-dimensional open-cell structure through which aerosolizable materials can traverse, for example, through capillary action.

[0247] like Figure 4B As shown, carbon allotropes (e.g., one or more graphene layers) 101 can be formed in the form of multiple sheets. Gaps can exist between the sheets. The gaps between the sheets can provide capillary structures. Aerosolizable materials can, for example, traverse the gaps through capillary action.

[0248] like Figure 4C As shown, carbon allotropes (e.g., one or more graphene layers) 101 can be formed in the form of multiple nanotubes. Gaps may exist between the nanotubes. The gaps between the nanotubes and / or the tubular spaces within the nanotubes can provide a capillary structure. Aerosolizable materials can, for example, traverse the gaps and / or tubular spaces through capillary action.

[0249] Carbon allotropes (e.g., one or more graphene layers 101) can be sintered onto carbon allotropes 101. Sintering has been found to increase the mechanical strength and / or damage resistance of one or more graphene layers 101.

[0250] According to the present invention, a carbon allotrope is loaded onto an electrically insulating substrate. The thickness of the allotrope can vary depending on the properties of the electrically insulating substrate and the arrangement of the allotrope on it. The thickness of the allotrope is understood to refer to the extent of the carbon allotrope measured orthogonally between the loaded surface of the electrically insulating substrate and the outer surface of the allotrope. In this regard, the outer surface refers to the surface of the carbon allotrope that does not have another layer loaded thereon when viewed orthogonally from the loaded surface of the electrically insulating substrate. In cases where the carbon allotrope includes internal holes, these internal holes are effectively ignored in the thickness measurement. By way of example, a first exemplary carbon allotrope and a second exemplary carbon allotrope will have the same thickness, differing only in the case that the first exemplary carbon allotrope has internal holes and the second exemplary carbon allotrope does not. The thickness of the carbon allotrope can refer to the thickness of a single layer or multiple layers. Those skilled in the art will know suitable methods for measuring the thickness of carbon allotropes, such as electron microscopy.

[0251] For example, when the allotrope exists as a single graphene layer, the thickness will have a natural lower limit corresponding to the thickness of a single graphene layer, which can be 0.345 nm. However, when it exists as multiple graphene layers, the thickness will be greater than 0.345 nm.

[0252] In some embodiments, the carbon allotrope 101 has a thickness of no more than 100 µm. In some embodiments, the carbon allotrope 101 has a thickness of no more than 80 µm. In some embodiments, the carbon allotrope 101 has a thickness of no more than 60 µm. In some embodiments, the carbon allotrope 101 has a thickness of no more than 50 µm. In some embodiments, the carbon allotrope 101 has a thickness of no more than 30 µm. In some embodiments, the carbon allotrope 101 has a thickness of no more than 20 µm. In some embodiments, the carbon allotrope 101 has a thickness of no more than 10 µm. In some embodiments, the carbon allotrope 101 has a thickness of no more than 5 µm. In some embodiments, the carbon allotrope 101 has a thickness of no more than 1 µm. The thickness of the carbon allotrope 101 is... Figures 4A to 4CThe symbol "t" represents the thickness of carbon allotrope 101. In some embodiments, carbon allotrope 101 has a thickness of no more than 500 nm. In some embodiments, carbon allotrope 101 has a thickness of no more than 400 nm. In some embodiments, carbon allotrope 101 has a thickness of no more than 300 nm. In some embodiments, carbon allotrope 101 has a thickness of no more than 200 nm. In some embodiments, carbon allotrope 101 has a thickness of no more than 100 nm. In some embodiments, carbon allotrope 101 has a thickness of no more than 80 nm. In some embodiments, carbon allotrope 101 has a thickness of no more than 50 nm. In some embodiments, carbon allotrope 101 has a thickness of no more than 30 nm. In some embodiments, carbon allotrope 101 has a thickness of no more than 20 nm. In some embodiments, carbon allotrope 101 has a thickness of no more than 10 nm.

[0253] The thickness of the carbon allotrope 101 may have a natural lower limit corresponding to the thickness of a single graphene layer, which may be 0.345 nm. In some embodiments, the carbon allotrope 101 has a thickness of at least 0.7 nm. In some embodiments, the carbon allotrope 101 has a thickness of at least 1 nm. In some embodiments, the carbon allotrope 101 has a thickness of at least 2 nm. In some embodiments, the carbon allotrope 101 has a thickness of at least 5 nm.

[0254] In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 100 µm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 80 µm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 60 µm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 50 µm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 40 µm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 30 µm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 20 µm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 10 µm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 1 µm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 500 nm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 200 nm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 100 nm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 50 nm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 20 nm. In some embodiments, the carbon allotrope 101 has a thickness from 0.345 nm to 10 nm.

[0255] In some embodiments, the carbon allotrope 101 has a thickness of 1 nm to 1 µm. In some embodiments, the carbon allotrope 101 has a thickness of 1 nm to 500 nm. In some embodiments, the carbon allotrope 101 has a thickness of 1 nm to 200 nm. In some embodiments, the carbon allotrope 101 has a thickness of 1 nm to 100 nm. In some embodiments, the carbon allotrope 101 has a thickness of 1 nm to 50 nm. In some embodiments, the carbon allotrope 101 has a thickness of 1 nm to 20 nm. In some embodiments, the carbon allotrope 101 has a thickness of 1 nm to 10 nm.

[0256] In some embodiments, the carbon allotrope 101 has a thickness from 2 nm to 1 µm. In some embodiments, the carbon allotrope 101 has a thickness from 2 nm to 500 nm. In some embodiments, the carbon allotrope 101 has a thickness from 2 nm to 200 nm. In some embodiments, the carbon allotrope 101 has a thickness from 2 nm to 100 nm. In some embodiments, the carbon allotrope 101 has a thickness from 2 nm to 50 nm. In some embodiments, the carbon allotrope 101 has a thickness from 2 nm to 20 nm. In some embodiments, the carbon allotrope 101 has a thickness from 2 nm to 10 nm.

[0257] In some embodiments, the carbon allotrope 101 has a thickness from 5 nm to 1 µm. In some embodiments, the carbon allotrope 101 has a thickness from 5 nm to 500 nm. In some embodiments, the carbon allotrope 101 has a thickness from 5 nm to 200 nm. In some embodiments, the carbon allotrope 101 has a thickness from 5 nm to 100 nm. In some embodiments, the carbon allotrope 101 has a thickness from 5 nm to 50 nm. In some embodiments, the carbon allotrope 101 has a thickness from 5 nm to 20 nm. In some embodiments, the carbon allotrope 101 has a thickness from 5 nm to 10 nm.

[0258] In some embodiments, the carbon allotrope 101 is loaded on at least 50% of the surface 102a of the electrically insulating substrate 102. In some embodiments, the carbon allotrope 101 is loaded on at least 70% of the surface 102a of the electrically insulating substrate 102. In some embodiments, the carbon allotrope 101 is loaded on at least 90% of the surface 102a of the electrically insulating substrate 102. In some embodiments, the carbon allotrope 101 is loaded on substantially 100% of the surface 102a of the electrically insulating substrate 102.

[0259] The surface 102a on which the carbon allotrope 101 is loaded can provide at least 30% of the outer surface area of ​​the electrically insulating substrate 102. The surface 102a on which the carbon allotrope 101 is loaded can provide at least 40% of the outer surface area of ​​the electrically insulating substrate 102. The surface 102a on which the carbon allotrope 101 is loaded can provide at least 45% of the outer surface area of ​​the electrically insulating substrate 102.

[0260] In some embodiments, the surface 102a on which the carbon allotrope 101 is loaded is curved.

[0261] In some embodiments, the surface 102a on which the carbon allotrope 101 is loaded is substantially flat.

[0262] The surface 102a on which the carbon allotrope 101 is loaded can be the main surface. A "main surface" is the surface with the largest (or most commonly largest) area relative to the other surfaces of the electrically insulating substrate 102. For example, the main surface of a rectangular prism-shaped electrically insulating substrate 102 having a length of 15 cm, a width of 2 cm, and a height of 1 cm is a surface defined by its length and width (where both exist). Figure 3 , Figure 5A , Figure 6A , Figure 7A , Figure 7B , Figure 8A and Figure 8B In each of them, one or more graphene layers 101 are shown as loaded on the main surface of the electrically insulating substrate 102.

[0263] The aerosol generating component 100 may include one or more electrodes 103 arranged to be in electrical contact with the carbon allotrope 101. The one or more electrodes 103 may be arranged to be in direct electrical contact with the carbon allotrope 101. The one or more electrodes 103 are configured to form an electrical connection with a power source, such that electrical power can be delivered to the aerosol generating component 100 (e.g., the carbon allotrope 101).

[0264] The aerosol generating component 100 may include two electrodes 103, each electrode 103 being arranged to be in electrical contact with the carbon allotrope 101. In embodiments with two electrodes 103, one of the electrodes may be arranged toward or at an end of the aerosol generating component 100, and the other electrode 103 may be arranged toward or at an opposite end of the aerosol generating component 100.

[0265] One or more electrodes 103 are made of any suitable conductive material. For example, one or more electrodes 103 may be selected from copper, silver or gold.

[0266] One or more electrodes 103 may be sintered onto the carbon allotrope 101. This sintering may be performed at temperatures ranging from 100°C to 300°C, such as from 120°C to 200°C. The sintering may take from 5 seconds to 5 minutes, such as from 10 seconds to 3 minutes. Those skilled in the art will understand that the sintering conditions may vary.

[0267] In one aspect of this disclosure, the carbon allotrope 101 is configured such that at a temperature of 150°C, the contact angle between the glycerol droplet and the surface of the carbon allotrope 101 is no greater than 20 degrees.

[0268] Contact angle can be measured using the Wilhelmy plate method, EM, simulation, or a goniometer. Contact angle can also be measured optically. For example, contact angle can be measured by photography. Those skilled in the art are familiar with these methods of measuring contact angle.

[0269] What will be understood is that the "contact angle" is the angle at which a liquid-vapor interface encounters a solid surface, and the contact angle quantifies the wettability of a liquid on a solid surface using Young's equation:

[0270] γ S It is the surface tension of a solid, γ L It is the surface tension of the liquid, and γ SL It is the boundary tension between the solid and the liquid (solid-liquid interface energy), and θ is the contact angle.

[0271] It has been found that when the carbon allotrope 101 is constructed in this way, during use, the aerosolizable material can form a thin layer uniformly distributed on the surface of the carbon allotrope 101, and the aerosolizable material can be effectively distributed throughout the entire bulk structure of the carbon allotrope 101. Furthermore, the aerosolizable material can be rapidly distributed on the carbon allotrope 101, and the volatilized aerosolizable material can be rapidly replenished. In addition, the aerosol generating component 100 has a reduced tendency to "dry out," that is, the aerosol generating component 100 or a portion thereof may inadvertently dry out because the rate of replenishment of aerosolizable material is less than the rate of volatilization of the aerosolizable material.

[0272] The temperature at which the contact angle is measured can refer to the temperature measured at the surface of the carbon allotrope on which glycerol droplets are provided.

[0273] At 150°C, the contact angle between a glycerol droplet and the surface of the carbon allotrope 101 may not exceed 18 degrees. At 150°C, the contact angle between a glycerol droplet and the surface of the carbon allotrope 101 may not exceed 16 degrees. At 150°C, the contact angle between a glycerol droplet and the surface of the carbon allotrope 101 may not exceed 14 degrees. At 150°C, the contact angle between a glycerol droplet and the surface of the carbon allotrope 101 may not exceed 12 degrees. At 150°C, the contact angle between a glycerol droplet and the surface of the carbon allotrope 101 may not exceed 10 degrees.

[0274] At a temperature of 20°C, the contact angle between the glycerol droplet and the surface of the carbon allotrope 101 can be from 70 degrees to 130 degrees, such as from 80 degrees to 110 degrees.

[0275] Carbon allotropes 101 may contain one or more dopants.

[0276] One or more dopants may include n-dopants. n-dopants may be selected from the group consisting of phosphorus and nitrogen.

[0277] One or more dopants may include p-dopers. P-dopers may be selected from the group consisting of free boron and sulfur.

[0278] It has been found that the presence of such dopants promotes a reduction in contact angle and thus improves wettability.

[0279] In one aspect of this disclosure, the electrically insulating substrate 102 is elongated and has an aspect ratio ranging from 5:1 to 50:1. Such an aspect ratio has been found to provide the desired heating performance in use.

[0280] For example, the electrical insulating substrate 102 can have an aspect ratio from 5:1 to 40:1. The electrical insulating substrate 102 can have an aspect ratio from 5:1 to 35:1. The electrical insulating substrate 102 can have an aspect ratio from 5:1 to 30:1. The electrical insulating substrate 102 can have an aspect ratio from 5:1 to 25:1. The electrical insulating substrate 102 can have an aspect ratio from 5:1 to 22:1.

[0281] For example, the electrical insulating substrate 102 can have an aspect ratio from 8:1 to 40:1. The electrical insulating substrate 102 can have an aspect ratio from 8:1 to 35:1. The electrical insulating substrate 102 can have an aspect ratio from 8:1 to 30:1. The electrical insulating substrate 102 can have an aspect ratio from 8:1 to 25:1. The electrical insulating substrate 102 can have an aspect ratio from 8:1 to 22:1.

[0282] In one aspect of this disclosure, the carbon allotrope 101 includes an elongated heating surface having an aspect ratio of 5:1 to 50:1. Such an aspect ratio has been found to provide the desired heating performance in use. In particular, this aspect ratio has been found to exhibit the desired aerosolization rate and energy efficiency.

[0283] The heated surface can be considered as part of the carbon allotrope 101 that reaches the temperature at which the aerosolizable material is aerosolized during use.

[0284] For example, the heating surface of the carbon allotrope 101 can have an aspect ratio of 5:1 to 40:1. The heating surface of the carbon allotrope 101 can have an aspect ratio of 5:1 to 35:1. The heating surface of the carbon allotrope 101 can have an aspect ratio of 5:1 to 30:1. The heating surface of the carbon allotrope 101 can have an aspect ratio of 5:1 to 25:1. The heating surface of the carbon allotrope 101 can have an aspect ratio of 5:1 to 22:1.

[0285] For example, the heating surface of the carbon allotrope 101 can have an aspect ratio of 8:1 to 40:1. The heating surface of the carbon allotrope 101 can have an aspect ratio of 8:1 to 35:1. The heating surface of the carbon allotrope 101 can have an aspect ratio of 8:1 to 30:1. The heating surface of the carbon allotrope 101 can have an aspect ratio of 8:1 to 25:1. The heating surface of the carbon allotrope 101 can have an aspect ratio of 8:1 to 22:1.

[0286] The heating surface of carbon allotrope 101 can be substantially flat.

[0287] Figure 10A and Figure 10B The relationship between energy density, efficiency, and mass loss data of the aerosol generation component 100 according to this disclosure is shown. In this particular embodiment, the aerosol generation component 100 traverses an aerosol generation material transfer component, which is a reservoir for aerosolizable materials (such as...). Figure 6A and Figure 6B (As shown). The aerosol generating component 100 contacts the surface of the aerosolizable material in the reservoir. The energy density indicator is provided by the aerosol generating component 100 per mm². 2 The amount of energy. Efficiency ( Figure 10A The blue cross in the figure corresponds to the amount of energy required for 100 mg of aerosol-generating material to volatilize from the aerosol-generating component, which in this case is an aqueous solution of glycerol (50 wt.% glycerol). Mass change (loss); Figure 10A The circles in the diagram correspond to the mass (in mg) of aerosolized aerosolizable material after a 20-second heater run. The aerosol generating components 100 have varying lengths and widths and each includes multiple graphene layers 101 disposed on a polyimide substrate 102, wherein the multiple graphene layers 101 are not parallel to each other. Lower efficiency values ​​(J / mg) are preferred, and higher mass change loss values ​​(mg) are preferred.

[0288] In one aspect of this disclosure, at least one elongated hole 104 extends through the aerosol generating component 100.

[0289] An example of this aerosol generating component 100 is in Figure 7A and Figure 7B As shown in the image.

[0290] The presence of at least one pore increases the edge length and direct surface area of ​​the aerosol generating component 100 that can come into contact with the aerosol generating material. It has been found that, despite the presence of at least one pore, heat is uniformly distributed across the aerosol generating component 100 during use. This uniform heat distribution advantageously provides consistent aerosolization and reduces the tendency to form “hot spots.” Figure 7B As shown in the figure, Figure 7B yes Figure 7A A thermal image of the aerosol generating component 100 in use, wherein the aerosol generating component 100 is powered by an electrical power source.

[0291] like Figure 7A and Figure 7B As shown, a plurality of elongated holes 104 may extend through the aerosol generating component 100. For example, at least two, at least three, at least four, at least five, or at least six elongated holes 104 may extend through the aerosol generating component 100. The elongated holes, or each elongated hole 104, may be linear. Alternatively, the elongated holes, or each elongated hole, may be non-linear.

[0292] The elongated apertures, or each elongated aperture 104, may extend substantially parallel to the axis of the aerosol generating component 100 (e.g., the electrically insulating substrate 102). For example, the elongated apertures, or each elongated aperture 104, may extend substantially parallel to the longitudinal extent (e.g., the longitudinal axis) of the aerosol generating component 100 (e.g., the electrically insulating substrate 102). For example, the elongated apertures, or each elongated aperture 104, may extend substantially parallel to the lateral extent (e.g., the lateral axis) of the aerosol generating component 100 (e.g., the electrically insulating substrate 102).

[0293] In embodiments including a plurality of elongated holes 104, the elongated holes 104 may be arranged side by side. In embodiments including a plurality of elongated holes 104, the elongated holes 104 may be arranged parallel to each other. For example, at least two, at least three, at least four, at least five, or at least six of the elongated holes 104 may be arranged parallel to each other, and one or more elongated holes 104 may not be parallel to each other.

[0294] For example, in Figure 7A and Figure 7B In the aerosol generating component 100, elongated holes 104 extend parallel to the longitudinal extent (e.g., longitudinal axis) of the aerosol generating component 100 (electrically insulating substrate 102), are spaced apart from each other, are arranged side by side, and are arranged parallel to each other.

[0295] The elongated hole, or each elongated hole 104, can have a width from 0.05 mm to 2 mm. The elongated hole, or each elongated hole 104, can have a width from 0.05 mm to 1.5 mm. The elongated hole, or each elongated hole 104, can have a width from 0.1 mm to 1 mm. The elongated hole, or each elongated hole 104, can have a width from 0.2 mm to 0.8 mm. The elongated hole, or each elongated hole 104, can have a width from 0.3 mm to 0.6 mm.

[0296] The elongated orifice, or each elongated orifice 104, may have a length ranging from 5% to 95% of the length of the aerosol generating component 100. The elongated orifice, or each elongated orifice 104, may have a length ranging from 20% to 95% of the length of the aerosol generating component 100. The elongated orifice, or each elongated orifice 104, may have a length ranging from 40% to 95% of the length of the aerosol generating component 100. The elongated orifice, or each elongated orifice 104, may have a length ranging from 50% to 95% of the length of the aerosol generating component 100. The elongated orifice, or each elongated orifice 104, may have a length ranging from 60% to 95% of the length of the aerosol generating component 100. The elongated orifice, or each elongated orifice 104, may have a length ranging from 70% to 95% of the length of the aerosol generating component 100. The elongated orifice, or each elongated orifice 104, may have a length ranging from 80% to 95% of the length of the aerosol generating component 100. The elongated orifice or each elongated orifice 104 may have a length of 90% to 95% of the length of the aerosol generating component 100.

[0297] The elongated hole, or each elongated hole 104, can have a length from 1 mm to 45 mm. The elongated hole, or each elongated hole 104, can have a length from 2 mm to 40 mm. The elongated hole, or each elongated hole 104, can have a length from 5 mm to 30 mm. The elongated hole, or each elongated hole 104, can have a length from 5 mm to 20 mm. The elongated hole, or each elongated hole 104, can have a length from 5 mm to 18 mm. The elongated hole, or each elongated hole 104, can have a length from 5 mm to 18 mm. The elongated hole, or each elongated hole 104, can have a length from 10 mm to 18 mm.

[0298] exist Figure 7A and Figure 7BIn the aerosol generating component 100, the aerosol generating component 100 has a length of 20 mm, a width of 1.0 mm, and a total thickness of 0.15 mm, and each elongated hole 104 has a length of 18 mm and a width of 0.5 mm. Specifically, the substrate (polyimide) 102 has a length of 20 mm, a width of 1.0 mm, and a thickness of 0.10 mm (100 μm). Carbon allotropes (graphene layers, multiple layers that are not parallel to each other) 102 substantially cover the entire upper surface of the electrically insulating substrate 102. The carbon allotropes have a thickness of 0.05 mm (50 μm).

[0299] The carbon allotrope 101 may include a first outer edge and a second outer edge. The first and second outer edges may be electrically connected to each other. The first and second outer edges may be opposing edges. An electrical path may extend between the first and second outer edges. At least one elongated aperture 104 may be provided between the first and second outer edges. At least one elongated aperture 104 may extend in a plane defined by the outer surface of the carbon allotrope 101. At least one elongated aperture 104 may extend through both the carbon allotrope 101 and the electrically insulating substrate 102.

[0300] In one aspect of this disclosure, the aerosol generating component 100 includes a heating section 100a. The aerosol generating component 100 may include at least one aerosolizable material supply section 100b. The at least one aerosolizable material supply section may extend from the heating section 101. This aerosol generating component 100 in… Figure 8A and Figure 8B As shown in the image.

[0301] By means of a heating unit 100a and at least one aerosolizable material supply unit 100b, it has been found that the aerosol generating component exhibits improved transfer of aerosolizable material to the aerosol generating component 100 and improved aerosolization efficiency. Specifically, at least one aerosolizable material supply unit 100b effectively transfers the aerosolizable material to the heating unit 100a. Furthermore, it has been found that when the aerosol generating component 100 is powered, heat energy does not significantly diffuse to at least one aerosolizable material supply unit 100b. This is... Figure 8B As shown in the figure, Figure 8B It is in use Figure 8AA thermal diagram of the aerosol generating component 100 is provided, wherein the aerosol generating component 100 is powered by an electrical source to reach the aerosolization temperature. Furthermore, at least one aerosolizable material supply unit 100b is used to supply aerosolizable material to the heating unit 100a, reducing or preventing the formation of vapor between the outer surface of the heating unit and the aerosolizable material. This situation occurs when the aerosolizable material is directly supplied to the outer surface of the heating unit and can lead to accidental ejection of the aerosolizable material (e.g., "splashing" or "spraying").

[0302] like Figure 8A and Figure 8B As shown, the heating element 100a can be elongated. For example, the heating element 100a can be formed in the form of a plate, strip, or rod. The heating element 100a can be linear. Alternatively, the heating element 100a can be non-linear.

[0303] The heating element 100a may include a carbon allotrope 101 and a substrate 102, or may be composed of a carbon allotrope 101 and a substrate 102. The heating element 100a may be composed of a carbon allotrope 101.

[0304] The heating element 100a may have a length from 1 mm to 50 mm. In some embodiments, the heating element 100a has a length from 2 mm to 40 mm. In some embodiments, the heating element 100a has a length from 5 mm to 30 mm. In some embodiments, the heating element 100a has a length from 10 mm to 30 mm. In some embodiments, the heating element 100a has a length from 10 mm to 25 mm. In some embodiments, the heating element 100a has a length from 10 mm to 20 mm.

[0305] The heating element 100a may have a width from 0.5 mm to 50 mm. In some embodiments, the heating element 100a has a width from 0.5 mm to 20 mm. In some embodiments, the heating element 100a has a width from 0.5 mm to 10 mm. In some embodiments, the heating element 100a has a width from 0.5 mm to 5 mm. In some embodiments, the heating element 100a has a width from 1 mm to 50 mm. In some embodiments, the heating element 100a has a width from 1 mm to 20 mm. In some embodiments, the heating element 100a has a width from 1 mm to 10 mm. In some embodiments, the heating element 100a has a width from 1 mm to 5 mm. In some embodiments, the heating element 100a has a width from 1 mm to 3 mm.

[0306] The aerosol generating component 100 may include multiple (e.g., at least two, three, four, five, or six) aerosolizable material supply units 100b, each extending from the heating unit 100a. Figure 8A and Figure 8B As shown, the aerosolizable material supply section or each aerosolizable material supply section 100b can extend from the side of the heating section 100a. Figure 8A and Figure 8B As shown, the aerosolizable material supply section or each aerosolizable material supply section 100b can extend laterally into the longitudinal range of the heating section 100a. The aerosolizable material supply section or each aerosolizable material supply section 100b can extend laterally from the heating section 100a.

[0307] The aerosol generating component 100 can be substantially flat. In this way, the heating unit 100a and at least one aerosolizable material supply unit 100b can be arranged in the same plane.

[0308] The aerosolizable material supply section or each aerosolizable material supply section 100b may be elongated 100a. For example, the aerosolizable material supply section or each aerosolizable material supply section 100b may be formed in the form of a plate, strip, or rod. The aerosolizable material supply section or each aerosolizable material supply section 100b may be linear.

[0309] The aerosolizable material supply section or each aerosolizable material supply section 100b may have an aspect ratio of 1:1 to 5:1. The width of the aerosolizable material supply section or each aerosolizable material supply section 100b may be 1 to 3 mm. The length of the aerosolizable material supply section or each aerosolizable material supply section 100b may be 1 to 15 mm.

[0310] The aerosolizable material supply section, or each aerosolizable material supply section 100b, may gradually narrow. For example, as... Figure 8A and Figure 8B As shown, the aerosolizable material supply section or each aerosolizable material supply section 100b can gradually narrow away from the elongated heating section 100a.

[0311] At least one aerosolizable material supply section 100b may be porous. At least one aerosolizable material supply section 100b may include capillary material. At least one aerosolizable material supply section 100b may have any characteristics of an electrically insulating substrate as defined herein.

[0312] like Figure 8A and Figure 8BAs shown, the heating section 100a may have a longitudinal range (e.g., a longitudinal axis). The aerosolizable material supply section or each aerosolizable material supply section 100b may extend obliquely or orthogonally from the longitudinal range of the heating section 100a.

[0313] The heating unit 100a includes a carbon allotrope 101 disposed on an electrically insulating substrate 102. Each aerosolizable material supply unit or each aerosolizable material supply unit 100b includes an electrically insulating substrate 102.

[0314] In some implementations (e.g. in) Figure 7A , Figure 7B , Figure 8A and Figure 8B In some embodiments, at least one aerosolizable material supply section 100b includes a carbon allotrope 101 and an electrically insulating substrate 102. For example, the portion of the electrically insulating substrate 102 not loaded with the carbon allotrope (according to...) Figure 7A , Figure 7B , Figure 8A and Figure 8B ).

[0315] In some embodiments, the heating element 100a and the substrate 102 are integrally formed.

[0316] In one aspect of this disclosure, an aerosol generation assembly is provided, including an aerosol generation component 100 of any aspect of this disclosure and an aerosol generation material transfer component 200 for supplying aerosol generation material to the aerosol generation component 100.

[0317] Figure 5A Figure 6C shows an example of an aerosol generation assembly.

[0318] The aerosol generating material transfer component 200 can be used to passively supply aerosol generating material to the aerosol generating component 100. "Passively supplying" means that the aerosol generating material transfer component 200 does not require power to transport the aerosol generating material to the aerosol generating component 100. For example, the aerosol generating material transfer component 200 may include a porous structure. For example, the aerosol generating material transfer component 200 may include a capillary structure. Capillary structures have been found to be particularly effective for transferring aerosolizable materials to the aerosol generating component 101.

[0319] like Figures 5A to 5CAs shown, the aerosol-generating material transfer component 200 may include at least one capillary channel 201 having an outlet 202. The outlet 202 may be arranged adjacent to the aerosol-generating component 100 (e.g., one or more graphene layers 101 and / or substrate 102) such that aerosolizable material exiting the outlet 202 directly contacts the aerosol-generating component. Figures 5A to 5C In the orientation shown, outlet 202 is arranged to supply aerosol generating material from above or beside aerosol generating component 100 relative to gravity.

[0320] like Figures 5A to 5C As shown, capillary channels (or each) 201 can be formed by a first layer (e.g., a capillary layer) 203 and a second layer (e.g., a base layer) 204. Figures 5A to 5B In the first layer 203 and the second layer 204, the spacer is approximately 0.1 mm to 0.5 mm (although the spacing may vary). The outlet 202 of the capillary channel 201 may be located at the end of the first layer 203 and the second layer 204, adjacent to the aerosol generating component 100 (e.g., carbon allotrope 101 and / or substrate 102). At least one capillary channel 201 may be provided in various forms. A capillary channel, or each capillary channel 101, may include a groove or conduit. In some embodiments, the aerosol generating component may include multiple capillary channels (each capillary channel may independently include any features of the capillary channels described herein).

[0321] The first layer 203 can be formed of any one of plastic, glass, paper, and ceramic. The first layer 203 can be non-porous. The second layer 204 can be formed of any one of plastic, glass, paper, and ceramic. The second layer 204 can be non-porous. Figure 5A and Figure 5B In the middle, each of the first layer 203 and the second layer 204 is made of glass.

[0322] like Figure 6A and Figure 6B As shown, the aerosol generating material transfer component 200 may include a reservoir 210. For example, the aerosol generating component 100 may extend across the reservoir 210. Figure 6A and Figure 6B In the illustrated orientation, reservoir 210 is arranged to supply aerosol-generating material from below aerosol-generating member 100 to aerosol-generating member 100 relative to gravity. Reservoir 210 may be configured to include a quantity of aerosolizable material such that the aerosolizable material is in direct contact with aerosol-generating member 100 (e.g., one or more graphene layers 101), such as its outer surface, particularly the surface provided by one or more graphene layers 101.

[0323] The aerosol generating assembly may include a moving mechanism (not shown) for moving (e.g., raising or lowering) the aerosol generating component 100 to maintain direct contact between the aerosol generating component 100 and any aerosolizable material in the reservoir 210. The moving mechanism may be automatically controlled by a controller.

[0324] In one aspect of this disclosure, an article of manufacture is provided for use as part of a non-flammable aerosol supply system, the article of manufacture comprising an aerosol generating component 100 or an aerosol generating assembly of any aspect of this disclosure.

[0325] In one aspect of this disclosure, an article is provided for use as part of a non-flammable aerosol supply system, the article comprising: an aerosol generating component 100 including a heating section 100a according to any aspect of this disclosure and at least one aerosolizable material supply section 100b; and at least one reservoir for the aerosolizable material, wherein the aerosolizable material supply section or each aerosolizable material supply section 100b is arranged in fluid communication with at least one of the at least one reservoir.

[0326] The aerosolizable material supply unit or each aerosolizable material supply unit 100b may extend to or enter at least one of at least one reservoir. In this way, the aerosolizable material supply unit or each aerosolizable material supply unit 100b may directly transport the aerosolizable material from the reservoir to the heating unit 100a.

[0327] The heating element 100a may be offset from at least one reservoir. For example, the article may include an aerosol generation chamber. An aerosol generation component may be arranged at least partially within the aerosol generation chamber. For example, the heating element 100a may be arranged within the aerosol generation chamber. The reservoir may radially surround the aerosol generation chamber. In this way, the reservoir may form a ring around the aerosol generation chamber (the ring may be partial or complete).

[0328] At least one airflow passage may extend through the article. The article may include at least one inlet and at least one outlet. At least one airflow passage may extend from at least one inlet to at least one outlet. The airflow passage may include an aerosol generation chamber.

[0329] The article can be oriented such that, during use, air flows along the aerosol generating component (e.g., the heating element 100a) in a surface direction (e.g., along the surface of the aerosol generating component 100, such as the heating element 100a). For example, during use, air can enter the article through at least one inlet, flow through an airflow passage via an aerosol generating chamber disposed therein in the aerosol generating component 100 (e.g., the heating element 100a), and exit the article through at least one outlet.

[0330] In one aspect of this disclosure, a non-flammable aerosol supply system is provided, comprising: an aerosol generating component 100 of any aspect of this disclosure, or an aerosol generating assembly of any aspect of this disclosure, or an article of manufacture of any aspect of this disclosure; and one or more of a power source and a controller.

[0331] The power source is used to supply electrical power to the aerosol generating component (e.g., carbon allotrope 101).

[0332] The controller may be arranged in electrical communication with the aerosol generating component 100 (e.g., carbon allotrope 101), wherein the controller is configured to control the power supply to the aerosol generating component 100 (e.g., carbon allotrope 101) via a power source. The controller may be configured to supply aerosolizable material to the aerosol generating component 100. The supply may be active. Active supply may be performed by an active supply device, such as a pump.

[0333] The amount of power supplied to the aerosol generating unit 100 can be based on the amount of aerosolizable material supplied to the aerosol generating unit 100. In this way, the system can be configured such that when no aerosolizable material is supplied to the aerosol generating unit 100, the power is set to zero or a baseline value, and when aerosolizable material is supplied to the aerosol generating unit, the power is set to a higher value. Such a device has been found to exhibit improved energy efficiency while maintaining the desired heating performance.

[0334] Therefore, when no aerosolizable material is supplied to the aerosol generating unit 100, the controller can be configured such that no power is supplied to the aerosol generating unit. When no aerosolizable material is supplied to the aerosol generating unit 100, the controller can be configured such that a baseline power (greater than zero) is supplied to the aerosol generating unit. The baseline power is less than the power supplied to the aerosol generating unit 100 when aerosol generating material is supplied. The use of the baseline power advantageously reduces the time to reach the aerosolization temperature while limiting power consumption during non-use processes.

[0335] In one aspect of this disclosure, a method for forming an aerosol generating component 100 in any aspect of this disclosure is provided.

[0336] The method may include the step of forming a carbon allotrope 101 on an electrically insulating substrate 102. The carbon allotrope 101 may be as defined herein.

[0337] The carbon allotrope 101 can be formed on the electrically insulating substrate 102 by printing.

[0338] The carbon allotrope 101 can be formed on the electrically insulating substrate 102 by laser irradiation. In an embodiment where the carbon allotrope 101 is formed in the form of foam, the foam can be formed on the electrically insulating substrate 102 by laser irradiation. Laser irradiation can include irradiating the electrically insulating substrate 102 with a laser beam, wherein the electrically insulating substrate 102 is a carbon-containing material. In embodiments involving laser irradiation, the electrically insulating substrate 102 can be formed of polyimide (PI). Laser irradiation can be performed in an inert environment.

[0339] Therefore, in some embodiments, the method of forming the aerosol generating component 100 includes forming a carbon allotrope 101 on an electrically insulating substrate 102 by laser irradiation, the laser irradiation including irradiating the electrically insulating substrate 102 with a laser beam, wherein the electrically insulating substrate 102 is a carbon-containing material (optionally formed of polyimide (PI)) and the carbon allotrope 101 is formed in the form of foam.

[0340] Carbon allotropes 101 can be formed on electrically insulating substrates 102 by laser-induced deposition.

[0341] When the carbon allotrope 101 is or includes one or more graphene layers, this can be formed on an electrically insulating substrate 102 by laser-induced graphene (LIG) formation. Laser-induced graphene formation involves irradiating the electrically insulating substrate 102 with a laser beam, wherein the electrically insulating substrate is a carbon-containing material. LIG can be used to form graphene foam on an electrically insulating substrate.

[0342] Carbon allotropes 101 can be formed on an electrically insulating substrate 102 by chemical vapor deposition (CVD). CVD involves flowing a carbon-containing gas (e.g., methane) (and optionally hydrogen) through the electrically insulating substrate 102. CVD can be performed at sub-atmospheric pressure, also known as low-pressure CVD. CVD can be used to form graphene foam on an electrically insulating substrate.

[0343] The method may include the step of forming one or more electrodes 103 in contact with the carbon allotrope 101.

[0344] It has been found that manufacturing efficiency can be improved by forming two or more electrodes 103 in contact (i.e., direct contact) with the carbon allotrope 101, relative to an aerosol-generating component (i.e., an additional component part; typically, silver contacts) where the electrodes are connected to the heater via electrical contacts. Furthermore, since such electrical contacts are not required, a larger proportion of aerosol-generating components 100 of a specific size can be configured to generate aerosols (e.g., a larger surface area of ​​the aerosol-generating component 100 can be exposed to the aerosolizable material), thereby improving aerosolization performance. The direct connection between one or more electrodes 103 and the carbon allotrope 101, relative to an aerosol-generating component where the electrodes are connected to the heater via electrical contacts, also provides improved low-loss electrical and / or mechanical connections therebetween.

[0345] Forming one or more electrodes 103 in contact with the carbon allotrope 101 may include a sintering step. For example, forming at least one electrode 103 in contact with the carbon allotrope 101 may include sintering at least one electrode to the carbon allotrope 101.

[0346] The electrodes, or each electrode 103, may be selected from copper, silver, and gold. The electrodes, or each electrode 103, are made by sintering, such as sintered copper, sintered silver, or sintered gold. Copper (such as sintered copper) has been found to be particularly effective in forming direct, low-loss electrical connections.

[0347] The method may include forming one or more grooves and / or one or more holes in the electrically insulating substrate before arranging the carbon allotrope 101 on the electrically insulating substrate. One or more holes extend through the substrate 102 (i.e., as through-holes). The grooves and holes facilitate the distribution of aerosolizable material on and through the aerosol generating component 100 and improve heating efficiency.

[0348] In some embodiments, the substrate 102 is glass, such as borosilicate glass (e.g., “flexible glass”) or quartz glass (fused silica).

[0349] For example, Figure 9 A carbon allotrope 102 formed on a borosilicate glass substrate 102 is shown, along with two copper electrodes 103 in contact with the carbon allotrope 102.

[0350] In one aspect of this disclosure, an aerosol generating component 100 is provided, which is obtained by a method according to any aspect of this disclosure.

[0351] In one aspect of this disclosure, a method is provided for operating a non-flammable aerosol supply system according to any aspect of this disclosure, the method comprising the step of supplying power to an aerosol generating component 100.

[0352] The method may include a drive controller to control (e.g., induce or prevent) the supply of aerosolizable material to the aerosol generating component 100.

[0353] The method may include a drive controller to control (e.g., cause or prevent) the supply of power to the aerosol generating component 100.

[0354] The method may include supplying an amount of power to the aerosol generating unit 100 based on the amount of aerosolizable material supplied to the aerosol generating unit 100. The method may include supplying a baseline power (greater than zero) to the aerosol generating unit 100 when no aerosolizable material is supplied to the aerosol generating unit 100. The method may include supplying an amount of power greater than the baseline power to the aerosol generating unit 100 when aerosolizable material is supplied to the aerosol generating unit 100.

[0355] Any aspect of this disclosure may be defined with respect to any other aspect of this disclosure. For example, one aspect of this disclosure may include any feature of any other aspect of this disclosure and / or a feature of one aspect of this disclosure may be as defined with respect to any other aspect of this disclosure.

[0356] The accompanying drawings are schematic and not to scale. The various embodiments described herein are presented only to aid in understanding and teaching the claimed features. These embodiments are provided only as representative examples of embodiments and are not exhaustive and / or exclusive. It should be understood that the advantages, embodiments, examples, functions, features, structures, and / or other aspects described herein should not be considered as limitations on the scope of the invention as defined by the claims or on the equivalents of the claims, and other embodiments may be used and modifications may be made without departing from the scope of the claimed invention. In addition to those specifically described herein, various embodiments of the invention may suitably include, constitute, or substantially constitute suitable combinations of, the disclosed elements, components, features, parts, steps, devices, etc. Furthermore, this disclosure may include other inventions not currently claimed but which may be claimed in the future.

Claims

1. An aerosol-generating component for use as part of a non-combustible aerosol provision system, the aerosol-generating component comprising carbon allotropes supported on an electrically insulating substrate, wherein, The aerosol-generating component comprises a heating portion and at least one aerosolisable material supply portion extending from the heating portion.

2. An aerosol-generating component according to claim 1, wherein, The or each aerosolisable material supply portion extends from a side of the heating portion.

3. An aerosol-generating component according to claim 1 or 2, wherein, The heating portion is elongate.

4. An aerosol-generating component according to any one of claims 1 to 3, wherein, The or each aerosolisable material supply portion is elongate.

5. An aerosol-generating component according to any one of claims 1 to 4, wherein, The or each aerosolisable material supply portion has an aspect ratio of 1 : 1 to 5:

1.

6. An aerosol-generating component according to any one of claims 1 to 5, wherein, The or each aerosolisable material supply portion has a length of 1 to 15 mm.

7. An aerosol-generating component according to any one of claims 1 to 6, wherein, The or each aerosolisable material supply portion has a width of 1 to 3 mm.

8. An aerosol-generating component according to any one of claims 1 to 7, wherein, The or each aerosolisable material supply portion tapers away from the elongate heating portion.

9. An aerosol-generating component according to any one of claims 1 to 8, wherein, The electrically insulating substrate has a thickness of 5 to 500 µm.

10. An aerosol-generating component according to any one of claims 1 to 9, wherein, The heating portion has a width of 0.5 mm to 50 mm.

11. An aerosol-generating component according to any one of claims 1 to 10, wherein, The heating portion has a length of 1 mm to 50 mm.

12. An aerosol-generating component according to any one of claims 1 to 11, wherein, The carbon allotrope is formed in the form of a plurality of nanotubes or in the form of an open-cell foam or in the form of a plurality of sheets.

13. An aerosol-generating component according to any one of claims 1 to 12, wherein, The carbon allotrope comprises one or more graphene layers, wherein, in the case that there is more than one graphene layer, at least two graphene layers are not parallel with respect to each other.

14. An aerosol-generating component according to any one of claims 1 to 12, wherein, The carbon allotrope is graphite.

15. An aerosol-generating component according to any one of claims 1 to 14, wherein, The carbon allotrope has one or more of the following characteristics: 100 to 5500 Wm -1 k -1 Thermal conductivity, 1 to 2.5 × 10 6 Sm -1 Its electrical conductivity and nonlinear elasticity.

16. An aerosol-generating component according to any one of claims 1 to 15, wherein, The electrically insulating substrate has a pore structure formed by pillars and interstitial pores.

17. An aerosol generating component according to claim 16, wherein, The carbon allotrope is formed on the pillars.

18. An aerosol-generating component according to claim 16 or 17, wherein, The interstitial pores have an average pore diameter of 0.5 to 40 µm.

19. An aerosol-generating component according to any one of claims 1 to 18, wherein, The carbon allotrope comprises disordered graphite and / or amorphous carbon.

20. An aerosol-generating component according to any one of claims 1 to 19, wherein, The Raman spectrum of the carbon allotrope includes a G band and a D band, wherein the G band peak is in the Raman shift range of about 1500 cm -1 to about 1650 cm -1 and the D band peak is in the Raman shift range of about 1250 cm -1 to about 1400 cm -1 , wherein the ratio of the intensity of the D band peak I D to the intensity of the G band peak I G I D / I G is about 0.8 to about 2, preferably about 1 to about 1.

8.

21. An aerosol-generating assembly for use as part of a non-combustible aerosol provision system, the aerosol-generating assembly comprising: An aerosol-generating component according to any of claims 1 to 20, and an aerosol-generating material transfer component for supplying aerosol-generating material to the aerosol-generating component.

22. An aerosol generating assembly according to claim 21, wherein, The aerosol-generating material transfer component comprises a reservoir.

23. An aerosol generating assembly according to claim 22, wherein, The aerosol-generating component traverses the reservoir.

24. An aerosol generating assembly according to claim 21, wherein, The aerosol-generating material transfer component comprises at least one capillary channel having an outlet.

25. An aerosol generating assembly according to claim 24, wherein, The outlet is arranged adjacent to the aerosol-generating component such that aerosolisable material exiting the outlet directly contacts the aerosol-generating component.

26. A non-combustible aerosol provision system comprising: An aerosol-generating component according to any of claims 1 to 20 or an aerosol-generating assembly according to any of claims 21 to 25; and one or more of a power supply and a controller.

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