WO2025114048A1

WO2025114048A1 - Aerosol provision device

Info

Publication number: WO2025114048A1
Application number: PCT/EP2024/082615
Authority: WO
Inventors: Min Xu; Zhiping Li
Original assignee: Nicoventures Trading Ltd
Current assignee: Nicoventures Trading Ltd
Priority date: 2023-11-27
Filing date: 2024-11-15
Publication date: 2025-06-05
Anticipated expiration: 2026-05-27
Also published as: CN120036533A

Abstract

An aerosol provision device (100) for generating aerosol from an aerosol generating material is described. The device (100) comprises a heater assembly (120) including a receptacle (130) configured to receive at least a portion of an article (200) comprising aerosol generating material, wherein the receptacle (130) defines a longitudinal axis (134) along which the at least a portion of an article (200) is received in the receptacle (130), a battery (150), wherein the battery (150) is offset from the longitudinal axis (134) and disposed at least partially adjacent to the receptacle (130), and a thermal insulation (160) arrangement between the heater assembly (120) and the battery (150). An aerosol provision system (101) is described comprising the device (100) and an article (200) comprising aerosol generating material.

Description

AEROSOL PROVISION DEVICE

Technical Field

The present invention relates to an aerosol provision device. The present invention also relates to an aerosol provision system comprising an aerosol provision device and an article comprising aerosol generating material, and a method of manufacturing an aerosol provision device.

Background

Smoking articles such as cigarettes, cigars and the like burn tobacco during use to create tobacco smoke. Attempts have been made to provide alternatives to these articles that burn tobacco by creating products that release compounds without burning. Examples of such products are heating devices which release compounds by heating, but not burning, the material. The material may be for example tobacco or other non-tobacco products, which may or may not contain nicotine.

Summary

In accordance with some embodiments described herein, there is provided an aerosol provision device for generating aerosol from an aerosol generating material, the aerosol provision device comprising: a heater assembly including a receptacle configured to receive at least a portion of an article comprising aerosol generating material, wherein the receptacle defines a longitudinal axis along which the at least a portion of an article is received in the receptacle; a power source, wherein the power sourceis offset from the longitudinal axis and disposed at least partially adjacent to the receptacle; and a thermal insulation arrangement between the heater assembly and the power source.

The power source may be a battery.

The thermal insulation arrangement may comprise a plurality of thermal control layers.

The thermal insulation arrangement may be a laminate arrangement.

The plurality of thermal control layers may comprise at least two of a first heat isolation layer, a second heat isolation layer, a thermal distribution layer, and a heat reflection layer. The plurality of thermal control layers may comprise the heat isolation layer, the thermal distribution layer, and the heat reflection layer.

The plurality of thermal control layers may comprise the first heat isolation layer, the second heat isolation layer, and the heat reflection layer.

The plurality of thermal control layers may comprise the first heat isolation layer, the second heat isolation layer, and the thermal distribution layer.

The plurality of thermal control layers may comprise the first heat isolation layer, the second heat isolation layer, the thermal distribution layer, and the heat reflection layer.

The first and second insulation layers may sandwich at least one of the thermal distribution layer and the heat reflection layer.

At least two of the plurality of thermal control layers may be bonded to each other.

The bonding may comprise adhering.

The thermal distribution layer may comprise at least one of graphene and a metal. The thermal distribution layer may comprise a composite material.

At least one heat isolation layer may comprise aerogel.

The or each heat isolation layer may have a heat conductivity of less than 0.010 W/m.K, less than 0.020 W/m.K, less than 0.030 W/m.K, or less than 0.040 W/m.K.

The thermal distribution layer may have a heat conductivity of more than 150 W/m.K, or more than 200 W/m.K, or more than 300 W/m.K, or more than 400 W/m.K, or more than 700 W/m.K, or more than 1500 W/m.K, or more than 2000 W/m.K, or more than 3000 W/m.K.

The device may comprise a battery carrier supporting the battery.

At least a portion of the battery carrier may be disposed between the heater assembly and the battery.

The plurality of thermal control layers may be supported by the battery carrier.

The battery carrier may be a chassis.

The thermal insulation arrangement may be mounted on the battery carrier.

The thermal insulation layer may at least partially surround the battery carrier. The battery carrier may comprise at least one of a metal, a plastic material and an insulating material.

At least one of the plurality of thermal control layers may be a coating.

The device may comprise a printed circuit board assembly (PCBA).

The PCBA may be disposed between the heater assembly and the thermal insulation layer.

The heater assembly may be an induction heater assembly.

The heater assembly may be a resistive heater assembly.

The heater assembly may comprise an inductor coil.

The heater assembly may comprise a heating element.

The heating element may be a resistive heating element.

The heating element may be a susceptor.

The heater assembly may be connected to the PCBA.

In accordance with some embodiments described herein, there is provided an aerosol provision device comprising a heater assembly, a battery, and a battery carrier supporting the battery, wherein at least a portion of the battery carrier between the battery and the heater assembly comprises a thermal insulation arrangement.

In accordance with some embodiments described herein, there is provided an aerosol provision device for generating aerosol from an aerosol generating material, the aerosol provision device comprising: a heater assembly including a receptacle configured to receive at least a portion of an article comprising aerosol generating material, wherein the receptacle defines a longitudinal axis along which the at least a portion of an article is received in the receptacle; and a battery.

In accordance with some embodiments described herein, there is provided an aerosol provision system comprising the device of any of the above and an article comprising aerosol generating material.

In accordance with some embodiments described herein, there is provided a method of manufacturing an aerosol provision device, the method comprising: providing a heater assembly including a receptacle configured to receive at least a portion of an article comprising aerosol generating material, wherein the receptacle defines a longitudinal axis along which the at least a portion of an article is received in the receptacle; providing a battery, wherein the battery is offset from the longitudinal axis and disposed at least partially adjacent to the receptacle; and providing a thermal insulation arrangement between the heater assembly and the battery.

Brief Description of the Drawings

Embodiments of the invention will now be described, by way of example only, with reference to accompanying drawings, in which:

Figure 1 shows a schematic side view of an aerosol provision system;

Figure 2 shows a schematic side view of the aerosol provision system of Figure 1 ; and

Figure 3 shows a schematic plan view of the aerosol provision system of Figure 1.

Detailed Description

As used herein, the term “aerosol-generating material” is a material that is capable of generating aerosol, for example when heated, irradiated or energized in any other way. Aerosol-generating material may, for example, be in the form of a solid, liquid or gel which may or may not contain an active substance and/or flavourants. Aerosol-generating material may include any plant based material, such as tobaccocontaining material and may, for example, include one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or tobacco substitutes. Aerosolgenerating material also may include other, non-tobacco, products, which, depending on the product, may or may not contain nicotine. Aerosol-generating material may for example be in the form of a solid, a liquid, a gel, a wax or the like. Aerosol-generating material may for example also be a combination or a blend of materials. Aerosolgenerating material may also be known as “smokable material”.

The aerosol-generating material may comprise a binder and an aerosol former. Optionally, an active and/or filler may also be present. Optionally, a solvent, such as water, is also present and one or more other components of the aerosol-generating material may or may not be soluble in the solvent. In some embodiments, the aerosolgenerating material is substantially free from botanical material. In some embodiments, the aerosol-generating material is substantially tobacco free. The aerosol-generating material may comprise or be an “amorphous solid”. The amorphous solid may be a “monolithic solid”. In some embodiments, the amorphous solid may be a dried gel. The amorphous solid is a solid material that may retain some fluid, such as liquid, within it. In some embodiments, the aerosolgenerating material may, for example, comprise from about 50wt%, 60wt% or 70wt% of amorphous solid, to about 90wt%, 95wt% or 100wt% of amorphous solid.

The aerosol-generating material may comprise an aerosol-generating film. The aerosol-generating film may comprise or be a sheet, which may optionally be shredded to form a shredded sheet. The aerosol-generating sheet or shredded sheet may be substantially tobacco free.

According to the present disclosure, a “non-combustible” aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is not combusted or burned in order to facilitate delivery of at least one substance to a user.

In some embodiments, the delivery system is a non-combustible aerosol provision system, such as a powered non-combustible aerosol provision system.

In some embodiments, the non-combustible aerosol provision system is an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosolgenerating material is not a requirement.

In some embodiments, the non-combustible aerosol provision system is an aerosol-generating material heating system, also known as a heat-not-burn system. An example of such a system is a tobacco heating system.

In some embodiments, the non-combustible aerosol provision system is a hybrid system to generate aerosol using a combination of aerosol-generating materials, one or a plurality of which may be heated. Each of the aerosol-generating materials may be, for example, in the form of a solid, liquid or gel and may or may not contain nicotine. In some embodiments, the hybrid system comprises a liquid or gel aerosol-generating material and a solid aerosol-generating material. The solid aerosol-generating material may comprise, for example, tobacco or a non-tobacco product. Typically, the non-combustible aerosol provision system may comprise a noncombustible aerosol provision device and a consumable for use with the noncombustible aerosol provision device.

In some embodiments, the disclosure relates to consumables comprising aerosol-generating material and configured to be used with non-combustible aerosol provision devices. These consumables are sometimes referred to as articles throughout the disclosure.

In some embodiments, the non-combustible aerosol provision system, such as a non-combustible aerosol provision device thereof, may comprise a power source and a controller. The power source may, for example, be an electric power source or an exothermic power source. In some embodiments, the exothermic power source comprises a carbon substrate which may be energised so as to distribute power in the form of heat to an aerosol-generating material or to a heat transfer material in proximity to the exothermic power source.

In some embodiments, the non-combustible aerosol provision system may comprise an area for receiving the consumable, an aerosol generator, an aerosol generation area, a housing, a mouthpiece, a filter and/or an aerosol-modifying agent.

In some embodiments, the consumable for use with the non-combustible aerosol provision device may comprise aerosol-generating material, an aerosolgenerating material storage area, an aerosol-generating material transfer component, an aerosol generator, an aerosol generation area, a housing, a wrapper, a filter, a mouthpiece, and/or an aerosol-modifying agent.

An aerosol generating device can receive an article comprising aerosol generating material for heating. An “article” in this context is a component that includes or contains in use the aerosol generating material, which is heated to volatilise the aerosol generating material, and optionally other components in use. A user may insert the article into the aerosol generating device before it is heated to produce an aerosol, which the user subsequently inhales. The article may be, for example, of a predetermined or specific size that is configured to be placed within a heating chamber of the device which is sized to receive the article.

Figure 1 shows an aerosol provision system 101 including an aerosol provision device 100 for generating aerosol from an aerosol generating material and a consumable 200. The consumable 200 is an article comprising aerosol generating material. The device 100 may be used to heat the replaceable consumable 200 comprising the aerosol generating material, to generate aerosol or other inhalable medium which is inhaled by a user of the device 100. In use, the consumable 200 is inserted into the device 100 for heating.

The device 100 comprises a body 110. The body 110 surrounds and houses various components of the device 100. The body 110 defines a device housing. The body 110 defines an outer surface of the device 100 against which the user comes into contact. An opening 132 is formed in one end of the body 110, through which the consumable 200 may be inserted for heating by an aerosol generator 116. In use, the consumable may be fully or partially inserted into a heating zone 124 where it may be heated by one or more components of the aerosol generator 114. The aerosol generator 114 comprises a heating assembly 120.

The device 100 may also include a user-operable control element (not shown), such as a button or switch, which operates the device 100 when pressed. For example, a user may turn on the device 100 by operating the switch.

The device 100 includes an electronics assembly 112. The electronics assembly 112 is disposed in the body 110. The electronics assembly 112 comprises a power source. The power source may be, for example, a battery 150, such as a rechargeable battery or a non-rechargeable battery. Examples of suitable batteries include, for example, a lithium battery (such as a lithium-ion battery), a nickel battery (such as a nickel-cadmium battery), and an alkaline battery. The battery is electrically coupled to the heating assembly 120 to supply electrical power when required and under control of a controller to heat the aerosol generating material.

The electronics assembly 112 comprises an electronics module. The electronics module may comprise a printed circuit board assembly (PCBA) 114 (shown in Figures 2 and 3). The PCBA 114 may comprise, for example, a printed circuit board (PCB) that supports at least one controller, such as a processor, and memory. The PCB may also comprise one or more electrical tracks to electrically connect together various electronic components. The battery terminals may be electrically connected to the PCB so that power can be distributed throughout the device 100. The heating assembly 120 is connected to the electronics assembly.

The end of the device 100 closest to the opening 132 may be known as the proximal end (or mouth end) 105 of the device 100 because, in use, it is closest to the mouth of the user. In use, a user inserts a consumable 200 into the opening 132, operates the aerosol generator 114 to begin heating the aerosol generating material, and draws on the aerosol generated in the device 100. This causes aerosol to flow through the device 100 along a flow path towards the proximal end 105 of the device 100.

The other end of the device furthest away from the opening 132 may be known as the distal end 106 of the device 100 because, in use, it is the end furthest away from the mouth of the user. As a user draws on the aerosol generated in the device, the aerosol flows in a direction towards the proximal end 105 of the device 100. The terms proximal and distal as applied to features of the device 100 will be described by reference to the relative positioning of such features with respect to each other in a proximal-distal direction along a longitudinal axis 134.

The consumable 200 is inserted into and removed from the device 100 through the opening 132. The heating assembly 120 may comprise an induction-type heating system, including a magnetic field generator comprising an inductor coil assembly. The heating assembly 120 may comprises a heating element. The heating element is also known as a susceptor. The consumable may comprise the susceptor or heating element, heatable by the heating assembly 120.

The heating assembly 120, forming part of the aerosol generator 116, may be an inductive heating assembly and comprise various components to heat the aerosol generating material of the article via an inductive heating process. Induction heating is a process of heating an electrically conducting object (such as a susceptor) by electromagnetic induction. An induction heating assembly may comprise an inductive element, for example, one or more inductor coils, and a device for passing a varying electric current, such as an alternating electric current, through the inductive element. The varying electric current in the inductive element produces a varying magnetic field. The varying magnetic field penetrates a susceptor suitably positioned with respect to the inductive element, and generates eddy currents inside the susceptor. The susceptor has electrical resistance to the eddy currents, and hence the flow of the eddy currents against this resistance causes the susceptor to be heated by Joule heating. In cases where the susceptor comprises ferromagnetic material such as iron, nickel or cobalt, heat may also be generated by magnetic hysteresis losses in the susceptor, i.e. by the varying orientation of magnetic dipoles in the magnetic material as a result of their alignment with the varying magnetic field. In inductive heating, as compared to heating by conduction for example, heat is generated inside the susceptor, allowing for rapid heating. Further, there need not be any physical contact between the inductive heater and the susceptor, allowing for enhanced freedom in construction and application.

The heating element may be hollow and therefore define at least part of a receptacle within which aerosol generating material is received. For example, the article can be inserted into the heating element. The heating element is tubular, with a circular cross section. The heating element has a generally constant diameter along its axial length. In embodiments, the heating element protrudes in the receptacle. Other arrangements are anticipated.

The heating element is formed from an electrically conducting material suitable for heating by electromagnetic induction. The susceptor in the present example is formed from a carbon steel. It will be understood that other suitable materials may be used, for example a ferromagnetic material such as iron, nickel or cobalt. The heating element may be an elongate member protruding in the heating zone defined by the receptacle.

In other embodiments, the feature acting as the heating element may not be limited to being inductively heated. The feature, acting as a heating element, may therefore be heatable by electrical resistance. The aerosol generator 116 may therefore comprise electrical contacts for electrical connection with the apparatus for electrically activating the heating element by passing a flow of electrical energy through the heating element.

The consumable 200 is inserted into the device 100 through the opening 132 and into the receptacle 130. The receptacle 130 receives the consumable 200. The receptacle 130 defines a heating zone 124 in which the consumable 200 is heated. The receptacle 130 defines a longitudinal axis 134 along which the consumable 200 is aligned. The heating assembly 120 is arranged to heat the consumable 200 when the consumable 200 is received in the receptacle 130. The heating assembly may be an induction heater assembly or a resistive heater assembly.

The battery 150 is disposed in the body 110. The battery 150 is offset from the longitudinal axis 134 of the receptacle 130 and therefore the heating assembly 120. A thermal insulation arrangement 160 is disposed between the heating assembly 120 and the battery 150. The thermal insulation arrangement 160 is provided to control the transfer of heat energy between the heating assembly 120 and the battery 150, acting as the power source.

Figures 2 and 3 show the system 101 in more detail. The heating assembly 120 comprises a coil 122 surrounding the receptacle 130. In embodiments in which inductive heating is used the coil is an inductive coil. In embodiments in which resistive heating is used, the coil 122 in embodiments is a resistive heating coil. The configuration of the coil may differ. In embodiments, the coil is a helical coil. In embodiments, the coil is omitted, in particular where a different resistive heating arrangement is used. In embodiments, a resistive heating element, such as coil 122, heats the receptacle 130. In embodiments, the receptacle 230 itself is resistively heated.

The coil 122, or other heating element arrangement, is connected to a printed circuit board assembly (PCBA) 140 which is connected to the electronics assembly 112. The PCBA 140 and battery 150 are disposed adjacent to the heating assembly 120. The thermal insulation arrangement 160 is disposed between the battery 150 and the heating arrangement 120. In this embodiment, the thermal insulation arrangement 160 is disposed between the battery 150 and the PCBA 140. By providing the thermal insulation arrangement between the battery and the PCBA 140, the number of connections passing through the thermal insulation arrangement may be minimised. In embodiments, the thermal insulation arrangement may be disposed between the heating assembly and the PCBA.

The thermal insulation arrangement 160 comprises a plurality of layers. The plurality of layers comprise thermal control layers. The plurality of layers are arranged in a laminate arrangement.

The thermal insulation arrangement 160 comprises a first heat isolation layer 161 , a second heat isolation layer 162, a thermal distribution layer 163 and a heat reflection layer 164. The number of layers, and type of layers may differ. In embodiments, the second heat isolation layer is omitted. In embodiments, there is a single heat isolation layer. In embodiments, the thermal distribution layer is omitted. In embodiments, the heat reflection layer is omitted.

By providing a combination of layers in the thermal insulation arrangement 160 it is possible to cause the layers to synergistically act together to maximise the thermal dissipation across the thermal insulation arrangement 160. The provision of a thermal distribution layer 163 together with one or more heat isolation layers aids to minimise the required thickness of the thermal insulation arrangement 160 by reducing hot spots along the thermal insulation arrangement 160 and so minimising the maximum heat differential that is required to be obtained across the or each heat isolation layer. Accordingly, the thickness of the thermal insulation arrangement 160 may be minimised.

The thermal distribution layer 163 comprises graphene. In embodiments, the thermal distribution layer comprises a graphene sheet. The graphene sheet in embodiments is a coating. In embodiments, the thermal distribution layer 163 is a film. Other suitable materials may be used. In embodiments the thermal distribution layer is a metal. The thermal distribution layer 163 in embodiments is a composite. In embodiments, the thermal distribution layer 163 comprises at least one ply. In embodiments, the thermal distribution layer 163 comprises a plurality of plies. The thermal distribution layer 163 has a relatively high thermal conductivity. The thermal distribution layer 163 has a heat conductivity of more than 150 W/m.K, or more than 200 W/m.K, or more than 300 W/m.K, or more than 400 W/m.K, or more than 700 W/m.K, , or more than 1500 W/m.K, or more than 2000 W/m.K, or more than 3000 W/m.K.

The heat isolation layers 161 , 162 comprise aerogel. Other suitable materials may be used. In embodiments the heat isolation layers 161 , 162 comprise a polymer, such as a plastic, for example Polyether ether ketone (PEEK). The heat isolation layers 161 , 162 in embodiments comprise a composite. In embodiments the heat isolation layers 161 , 162 are formed from different materials. In embodiments at least one heat isolation layer 161 , 162 acts as a support. The first heat isolation layer 161 may form a substrate. Each heat isolation layer 161 , 162 has a heat conductivity of less than 0.010 W/m.K, less than 0.020 W/m.K, less than 0.030 W/m.K, or less than 0.040 W/m.K.

The thermal distribution layer 163 may be a coating. The coating may be disposed on one of the first or second heat isolation layers 161 , 162 or the heat reflection layer 164.

The heat reflection layer 164 comprises a metal. In embodiments, the heat reflection layer is a coating. In the embodiment of Figures 2 and 3, the thermal distribution layer 163 and the heat reflection layer 164 are between the first and second heat isolation layers 161 , 162. The first and second heat isolation layers 161 , 162 sandwich the thermal distribution layer 163 and heat reflection layer 164. One of the thermal distribution layer 163 and heat reflection layer 164 may be omitted. The thermal control layers are attached to each other. In the present embodiment, the thermal control layers attached by bonding to one another. The thermal control layers may be bonded by adhesive. In embodiments, the layers may be arranged in different configurations. In embodiments, the thermal insulation arrangement may comprise two or three layers, the layers comprising two or three of the first heat isolation layer, the second heat isolation layer, the thermal distribution layer and the heat reflection layer. The thermal control layers may be in direct contact with one another, or may be spaced apart from one another with an air gap between.

Figures 2 and 3 show a battery carrier 152 which supports the battery 150. In embodiments, the battery carrier is a chassis. The chassis acts to support and orientate components with respect to other components. The battery 150 is mounted by the battery carrier 152. The battery carrier 152 extends at least partly around the battery 150. The battery carrier 152 supports the battery 152 on the body 110. In embodiments, the battery carrier is omitted.

A portion of the battery carrier 152 is disposed between the battery 150 and the heating assembly 120. The thermal insulation arrangement 160 is attached to or mounted on the battery carrier. The thermal insulation arrangement 152 is between the battery carrier 152 and the heating assembly 120.

The battery carrier 152 comprises an insulating material, such as a plastic. In embodiments the battery carrier 152 comprises a metal. The battery carrier may define electrically conductive paths. The battery carrier may define electrically insulative paths. The battery carrier 152 may comprise a thermally insulating coating to restrict heat transfer to the battery 150. The thermal insulation arrangement 160 partially surrounds the battery carrier. The thermal insulation arrangement 160 may be planar. The battery 150 may be in direct contact with the battery carrier 152. The battery 150 may be spaced apart from the battery carrier 152 to provide an air gap between the battery 150 and the battery carrier 152 to provide further heat insulation for the battery 150. The thermal insulation arrangement 160 restricts heat from transferring from the heating assembly 120 to the battery 150. The battery is protected from heat damage by the thermal insulation arrangement 160. The thermal insulation arrangement 160 dissipates and/or reflects the heat away from the battery 150.

In embodiments, the battery carrier 152 acts as a support for the thermal insulation arrangement 160. The thermal insulation arrangement 160 may be mounted to the battery carrier 152 by bonding, such as by adhering. In embodiments, the heat isolation layer 161 is bonded to the battery carrier. In embodiments, one or more layers are omitted.

The various embodiments described herein are presented only to assist in understanding and teaching the claimed features. These embodiments are provided as a representative sample of embodiments only, and are not exhaustive and/or exclusive. It is to be understood that advantages, embodiments, examples, functions, features, structures, and/or other aspects described herein are not to be considered limitations on the scope of the invention as defined by the claims or limitations on equivalents to the claims, and that other embodiments may be utilised and modifications may be made without departing from the scope of the claimed invention. Various embodiments of the invention may suitably comprise, consist of, or consist essentially of, appropriate combinations of the disclosed elements, components, features, parts, steps, means, etc., other than those specifically described herein. In addition, this disclosure may include other inventions not presently claimed, but which may be claimed in future.

Claims

1. An aerosol provision device for generating aerosol from an aerosol generating material, the aerosol provision device comprising: a heater assembly including a receptacle configured to receive at least a portion of an article comprising aerosol generating material, wherein the receptacle defines a longitudinal axis along which the at least a portion of an article is received in the receptacle; a battery, wherein the battery is offset from the longitudinal axis and disposed at least partially adjacent to the receptacle; and a thermal insulation arrangement between the heater assembly and the battery.

2. The device of claim 1 , wherein the thermal insulation arrangement comprises a plurality of thermal control layers.

3. The device of claim 1 or 2, wherein the thermal insulation arrangement is a laminate arrangement.

4. The device of claim 2 or 3, wherein the plurality of thermal control layers comprises at least two of a first heat isolation layer, a second heat isolation layer, a thermal distribution layer, and a heat reflection layer.

5. The device of claim 4, wherein the plurality of thermal control layers comprises the first isolation layer and the second isolation layer sandwiching at least one of the thermal distribution layer and the heat reflection layer.

6. The device of any of claims 2 to 5, wherein at least two of the plurality of thermal control layers are bonded to each other.

7. The device of any of claims 4 to 6, wherein the thermal distribution layer comprises at least one of graphene and a metal.

8. The device of any of claims 4 to 7, wherein at least one heat isolation layer comprises aerogel.

9. The device of any of claims 4 to 8, wherein the or each heat isolation layer has a heat conductivity of less than 0.010 W/m.K, less than 0.020 W/m.K, less than 0.030 W/m.K, or less than 0.040 W/m.K.

10. The device of any of claims 4 to 9, wherein the thermal distribution layer has a heat conductivity of more than 150 W/m.K, or more than 200 W/m.K, or more than 300 W/m.K, or more than 400 W/m.K, or more than 700 W/m.K, or more than 1500 W/m.K, or more than 2000 W/m.K, or more than 3000 W/m.K.

11. The device of any of claims 2 to 10, comprising a battery carrier supporting the battery.

12. The device of claim 11 , wherein at least a portion of the battery carrier is disposed between the heater assembly and the battery.

13. The device of claim 11 or 12, wherein the plurality of thermal control layers is supported by the battery carrier.

14. The device of any of claims 11 to 13 wherein the thermal insulation arrangement is mounted on the battery carrier.

15. The device of any of claims 2 to 14, wherein at least one of the plurality of thermal control layers is a coating.

16. The device of any of claims 1 to 15, comprising a printed circuit board assembly.

17. The device of claim 16, wherein the printed circuit board assembly is disposed between the heater assembly and the thermal insulation layer.

18. An aerosol provision device comprising: a heater assembly; a battery; and a battery carrier supporting the battery; wherein at least a portion of the battery carrier between the battery and the heater assembly comprises a thermal insulation arrangement.

19. An aerosol provision system comprising the device of any of claims 1 to 18 and an article comprising aerosol generating material.

20. A method of manufacturing an aerosol provision device, the method comprising: providing a heater assembly including a receptacle configured to receive at least a portion of an article comprising aerosol generating material, wherein the receptacle defines a longitudinal axis along which the at least a portion of an article is received in the receptacle; providing a battery, wherein the battery is offset from the longitudinal axis and disposed at least partially adjacent to the receptacle; and providing a thermal insulation arrangement between the heater assembly and the battery.