Abstract: A heater assembly for an aerosol-generating system is provided, including: a heating element including a mesh having first and second filaments respectively extending in perpendicular first and second directions, and respectively including first and second materials respectively having first and second electrical conductivities, the first conductivity being greater than the second conductivity, each of the first filaments including a core and an overlying coating including the first material, and the core of each of the first filaments being formed from a material having a lower electrical conductivity than the first material; and at least two electrical terminals to supply electrical power to the heating element, each of the terminals being connected to at least one of the first filaments, the electrical terminals including first and second electrical terminals, and, during use, electrical current is conducted between the first and the second electrical terminals via the second filaments.

Abstract: An aerosol-generating system is provided, including: a liquid reservoir; a susceptor assembly including a susceptor element in fluid communication with the liquid reservoir such that liquid from the liquid reservoir is conveyed to the susceptor element in use, the susceptor element being substantially planar and extending parallel to a first plane; first and second inductor coil, the first coil positioned on a first side of the susceptor assembly and extending parallel to the first plane, the second coil positioned on a second side of the susceptor assembly opposite the first side and extending parallel to the first plane, in which the susceptor element is positioned between, and substantially equidistant from, the first and the second coils; and control circuitry connected to the first and the second coils and configured to provide alternating current to the first and the second coils.

Abstract: A cartridge for an aerosol-generating system is provided, the cartridge including: a liquid reservoir configured to hold a liquid aerosol-forming substrate; a susceptor assembly in fluid communication with the liquid reservoir, the susceptor assembly including a susceptor element having: a heating region including a first material, the first material being a magnetic material heatable by penetration with an alternating magnetic field, and at least one mounting region including the first material and a second material, the second material being a non-magnetic material; and a susceptor holder, the at least one mounting region of the susceptor element being in contact with the susceptor holder, and a proportion by weight of the first material in the heating region being greater than a proportion by weight of the first material in the at least one mounting region.

Abstract: An aerosol-generating article is provided for producing an inhalable aerosol upon heating, the aerosol-generating article including: an aerosol-forming substrate including a gel composition, the gel composition including at least one gelling agent, at least one of an alkaloid compound and a cannabinoid compound, and an aerosol former; an upstream element upstream of the aerosol-forming substrate; and a recess extending from an upstream end of the aerosol-generating article, through the upstream element, and through at least a portion of the aerosol-forming substrate, in which a longitudinal inner surface of the recess is provided with a wrapper.

Abstract: A heating element for an aerosol-generating system is provided, the heating element including: a plurality of first filaments; and a plurality of second filaments, in which the plurality of first filaments are configured to heat a liquid aerosol-forming substrate, the plurality of second filaments are configured to convey the liquid aerosol-forming substrate to wet at least a portion of the heating element with the liquid aerosol-forming substrate, and the heating element is arranged to form a mesh, the plurality of first filaments being arranged in a first direction and the plurality of second filaments being arranged in a second direction, and the second direction being transverse to the first direction. A heater assembly, a cartridge, and a method of manufacturing a heating element, are also provided.

Abstract: A heater is provided for heating an aerosol-forming substrate, the heater including: a heating element to heat the aerosol-forming substrate, the heating element including at least one positive temperature coefficient (PTC) thermistor, the PTC thermistor being configured to be supplied with an electric current so as to heat the PTC thermistor, in which a resistance of the PTC thermistor increases when a temperature of the PTC thermistor increases within a stabilised temperature range, a lower end of the stabilised temperature range being, when a constant voltage is applied to the PTC thermistor, a reference temperature at which the resistance of the PTC thermistor is twice a value of a minimum resistance of the PTC thermistor, and in which the reference temperature is between about 100° C. and about 350° C. when a constant voltage of 3.3V is applied to the PTC thermistor.