Abstract: The present disclosure relates to a method of preparing an electrode assembly capable of improving life characteristics and rapid charging performance by minimizing a space between a folding separator and an electrode. The method of preparing the electrode assembly includes disposing a plurality of unit cells on a first surface of a folding separator, fixing the unit cells on the first surface of the folding separator, providing a binder composition to at least one end portion of a second surface of the folding separator, and stacking the unit cells by folding the folding separator.

Abstract: A cleaning kit for an aerosol generating device includes a power supplier; a cleaner configured to clean the aerosol generating device by moving while contacting at least one of an accommodation unit and a heater of the aerosol generating device, and a driver configured to operate the cleaner according to power from the power supplier, and including a gear unit for changing an operating torque of the cleaner.

Abstract: A polyurethane foam composition includes a polyol mixture that includes polyether polyol and polymer polyol, an isocyanate compound, a catalyst consisting of a resinizing catalyst and a foaming catalyst, a foaming agent, a chain extender, and a surfactant. The polymer polyol contained in the polyol mixture is present in an amount of 1% to 70% by weight, based on the total weigh of the polyol mixture. The polyether polyol has an average functional group number of 2 to 4 and a mass average molecular weight of 4000 to 8000. The polymer polyol is grafted or dispersed with 20 to 60 wt % of a solid polymer comprising a styrene monomer and acrylonitrile at a weight ratio of 9:1, in polyether polyol having an average functional group number of 2 to 4 and a mass average molecular weight of 3000 to 6000.