Abstract: An aerosol generating article includes a heat source portion including a combustible heat source for generating heat; a heat conduction portion connected to the heat source portion and including an inlet hole through which external air is introduced; a tobacco medium connected to the heat conduction portion and heated by the heat of the heat source transferred through the heat conduction portion, to include an aerosol generating material for generating an aerosol; and a first heat conductor disposed in the tobacco medium and including a heat-conducting material for transferring heat generated by the heat source portion to the tobacco medium.

Abstract: An aerosol generating device includes a cartridge configured to generate aerosol from an aerosol generating material; and a main body comprising an accommodation space for accommodating the cartridge, wherein an airflow passage for introducing external air is formed between a wall of the main body adjoining the accommodation space and a wall of the cartridge when the cartridge is accommodated in the accommodation space of the main body.

Abstract: Disclosed are a pressure sensor using conductive thread, the pressure sensor including a plurality of first conductive lines arranged parallel to each other in a first direction in a state of being spaced apart from each other, a plurality of second conductive lines arranged parallel to each other in a second direction intersecting the first direction in a state of being spaced apart from each other, and a spacer located between the plurality of first conductive lines and the plurality of second conductive lines, resistance of the spacer being changed when pressure is applied thereto, whereby it is possible to measure a wide range of pressure with elasticity and flexibility, and a method of manufacturing the same.

Abstract: Disclosed is an aerosol generating apparatus including an atomizer configured to generate an aerosol from an aerosol generating material; a controller configured to output a driving voltage for controlling the atomizer; and a voltage divider operationally connected to the controller and configured to control an input voltage of the atomizer by adjusting voltage division of the driving voltage, such that a pre-heating voltage is applied to the atomizer while the atomizer is being pre-heated in a non-puff period and an atomization voltage is applied to the atomizer while the atomizer is atomizing the aerosol generating material in a puff period.

Abstract: Disclosed is an aerosol generating apparatus including a liquid storage configured to accommodate an aerosol generating material; a vibrator configured to generate ultrasonic vibration to atomize the aerosol generating material into an aerosol; and a processor configured to, based on a correlation between frequencies within a predetermined range including a resonant frequency of the vibrator and impedances of the vibrator changed by application of the frequencies within the predetermined range, determine an operating frequency for controlling the vibrator to a second temperature higher than a first temperature reached by application of a voltage of the resonant frequency and control the vibrator to the second temperature by applying a voltage of the operating frequency to the vibrator.

Abstract: An aerosol-generating device includes a battery, a controller, an atomizer, and a scaling member disposed on one end of the atomizer and including a thermoplastic elastomer (TPE), wherein the thermoplastic elastomer has a melt flow index of 1.8 g/10 min to 80.0 g/10 min.

Abstract: An aerosol-generating device includes a heating element configured to heat an aerosol-generating substrate, a battery configured to supply power to the heating element, a harvest device configured to generate power, and a controller configured to control conversion of power generated by the harvest device and control charging of the battery by using converted power.

Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are described herein. Specifically, the non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt, an organic solvent and a compound represented by Formula 1 to form a robust SEI film, thereby improving battery performance: Wherein R1 to R3 are described herein.

Abstract: A cartridge for mounting on a main body of an aerosol generating device includes: a liquid storage extending in a longitudinal direction of the cartridge to form an outer wall of the cartridge, the liquid storage including a space accommodating a liquid composition therein; a heater that heats the liquid composition accommodated in the liquid storage to generate an aerosol; and a coupling protrusion including an elastic material, the coupling protrusion protruding from an outer surface of the liquid storage and coupling the main body to the cartridge.

Abstract: According to an embodiment, an aerosol generating device includes: a battery configured to supply a battery voltage having a first voltage value; a first boost circuit configured to boost the battery voltage to a first boost voltage having a second voltage value greater than the first voltage value; a second boost circuit configured to boost the first boost voltage to a second boost voltage having, as a peak-to-peak voltage value, a third voltage value greater than the second voltage value; a vibrator configured to generate ultrasonic vibration according to the second boost voltage and atomize an aerosol generating material; and a processor configured to control the battery, the first boost circuit, and the second boost circuit.

Abstract: An electrolyte additive comprising a compound represented by Formula 1 below forms a coating film on an electrode surface in the activation of a secondary battery, thereby the generation of a large amount of gas under a high temperature condition can be prevented, and a cell OCV drop and a decrease in capacity retention rate, which are caused by elution of metal ions from an electrode, can be effectively prevented, resulting in effective improvement in durability, performance and high-temperature safety of the battery, wherein R1, R2, and M are described herein.

Abstract: An aerosol generating device and an operation method thereof are disclosed. The aerosol generating device may include a heater for heating an aerosol generating material, a battery for supplying power to the heater, and a controller for dividing a preheating period for preheating the heater into a plurality of sections and controlling so that more power is supplied to the heater in a first section than in a second section among the plurality of sections.

Abstract: A cover assembly includes a mouthpiece including one end, that is configured to come into contact with a mouth of a user, and another end opposite to the one end, the mouthpiece configured to move to an open position and a closed position by rotation of the mouthpiece around the other end; and an accommodation unit for accommodating the one end of the mouthpiece in the closed position. The accommodation unit includes a button unit including a body, the button unit configured to contact the one end of the mouthpiece and to be displaced in a longitudinal direction based on the one end being pressed; and a locking unit including a body, the body of the locking unit including a first portion that is configured to contact the one end of the mouthpiece and a second portion that is configured to contact the button unit.

Abstract: An aerosol generating device includes a main body and a cartridge detachably coupled to the main body. The main body includes a controller, a battery, and a first wireless communication unit. The cartridge includes a second wireless communication unit. The controller controls output power of the battery to apply a power pattern to the cartridge, and the first wireless communication unit establishes a wireless connection with the second wireless communication unit when power supplied from the battery to the cartridge matches a preset power pattern.

Abstract: A vaporizer includes a storage storing a liquid aerosol generating material, a wick extending in one direction and absorbing the aerosol generating material through both end portions thereof that are connected to the storage, and a coil surrounding the wick a plurality of times at different winding intervals and heating the aerosol generating material absorbed by the wick, based on an absorption rate profile of the aerosol generating material which changes in the wick along the one direction.

Abstract: An aerosol generating device may include a heater configured to heat an aerosol generating material, a battery configured to supply power to the heater, and a controller. In addition, the aerosol generating device may further include a user input detection sensor configured to receive a user's input and a pressure detection sensor configured to sense pressure. The controller may, in response to the user's input being sensed by using the user input detection sensor, obtain an initial pressure sensing value by using the pressure detection sensor. In addition, the controller may determine a reference pressure value based on the initial pressure sensing value and determine whether a puff of the aerosol generating device has occurred based on the reference pressure value.

Abstract: An aerosol generating device includes a heater configured to heat an aerosol generating material to generate aerosol; a controller configured to: calculate a current flowing through the heater based on a predefined resistance of the heater and power supplied to the heater, measure the current flowing through the heater, and control the power supplied to the heater based on a difference between the calculated current and the measured current.

Abstract: The gas sensor according to an exemplary embodiment of the present invention comprises: an FET device including one or more gate electrodes; a sensor array part including a plurality of sensors, in which a first electrode of each sensor is connected to at least one gate electrode of the plurality of gate electrodes in the FET device; and a controller detecting a gas using a current between a drain-source in response to voltage changes in the gate electrode of the FET device, wherein each sensor includes: a first electrode connected to a gate electrode of the FET device; a second electrode receiving an operating voltage through a switch controlled by the controller; and a detection film interposed between the first electrode and the second electrode.

Abstract: According to one or more embodiments, a cartridge includes a connector comprising a plurality of terminals configured to provide an electrical connection between the cartridge and an external device; a heater configured to be heated by a current flowing through a first pair of terminals among the plurality of terminals; and a processor configured to: count a number of times a signal is received through a second pair of terminals among the plurality of terminals, store the number of times corresponding to a counting result in a memory, and initialize the stored number of times when the plurality of terminals are short-circuited according to a preset pattern.

Abstract: According to some embodiments, there is disclosed an aerosol generating device which includes: a main body including a controller and a battery; and a cartridge detachably coupled to the main body, wherein the controller periodically detects whether the cartridge is coupled to the main body while the aerosol generating device operates in a first mode, determines whether a preset period of time has elapsed based on the cartridge being determined to have been separated from the main body, and switches the aerosol generating device from the first mode to a second mode based on whether the cartridge is coupled to the main body before the preset period of time elapses.