Aerosol-generating article including thermally conductive material

Abstract

According to some embodiments, there may be provided an aerosol-generating article including a tobacco medium section prepared from a mixture including tobacco powder and thermally conductive powder. The mixture may include, based on dry weight, less than 20 wt % of the thermally conductive powder.

1 . An aerosol-generating article comprising:
 a tobacco medium section prepared from a mixture including tobacco powder and thermally conductive powder,   wherein the mixture includes, based on dry weight, less than 20 wt % of the thermally conductive powder.   
     
     
         2 . The aerosol-generating article of  claim 1 , wherein the mixture includes, based on dry weight, 30 wt % to 80 wt % of the tobacco powder, and at least 0.1 wt % and less than 20 wt % of the thermally conductive powder. 
     
     
         3 . The aerosol-generating article of  claim 1 ,
 wherein the mixture further includes at least one of an additive, a binder and a moisturizer, and   the tobacco medium section is produced in a manner that a slurry, which is produced by adding water to the mixture and then mixing the water with the mixture, is dried in a sheet form and then shaped.   
     
     
         4 . The aerosol-generating article of  claim 3 , wherein the mixture includes, based on dry weight, 60 wt % to 80 wt % of tobacco powder, at least 5 wt % and less than 20 wt % of thermally conductive powder, 3 wt % to 7 wt % of additives, 6 wt % to 10 wt % of binder, and 5 wt % to 12 wt % of a moisturizer. 
     
     
         5 . The aerosol-generating article of  claim 1 , wherein the thermally conductive powder includes aluminum powder. 
     
     
         6 . The aerosol-generating article of  claim 1 , wherein, when the aerosol-generating article is heated by heat transferred from outside the tobacco medium section, the thermally conductive powder is distributed at a greater density, the closer to the longitudinal axis of the tobacco medium section. 
     
     
         7 . The aerosol-generating article of  claim 1 , wherein, when the aerosol-generating article is heated by heat transferred from inside the tobacco medium section, the thermally conductive powder is distributed at a greater density, the farther from the longitudinal axis of the tobacco medium section. 
     
     
         8 . The aerosol-generating article of  claim 1 , further comprising:
 an aerosol generating section located upstream of the tobacco medium section and including a sheet of non-tobacco material to which a moisturizer is applied;   a cooling section located downstream of the tobacco medium section and configured to cool aerosols generated from at least one of the aerosol generating section and the tobacco medium section; and   a filter section located downstream of the cooling section.   
     
     
         9 . An aerosol generating system comprising:
 an aerosol-generating article including a tobacco medium section prepared from a mixture including tobacco powder and thermally conductive powder, wherein the mixture includes, based on dry weight, less than 20 wt % of the thermally conductive powder; and   an aerosol generating device including a heater for heating the aerosol-generating article, a battery for supplying power to the heater, and a controller for controlling supply of power from the battery to the heater.   
     
     
         10 . The aerosol generating system of  claim 9 ,
 wherein the heater is arranged to surround the outside of the tobacco medium section, and   the thermally conductive powder is distributed at a greater density, the closer to the longitudinal axis of the tobacco medium section.   
     
     
         11 . The aerosol generating system of  claim 9 ,
 wherein the heater is arranged to be inserted into the tobacco medium section, and   the thermally conductive powder is distributed at a greater density, the farther from the longitudinal axis of the tobacco medium.