Abstract:
A metal-air battery includes an anode portion including a metal; a cathode portion including a porous layer, wherein the porous layer includes a reduced non-stacked graphene oxide; and an electrolyte disposed between the anode portion and the cathode portion.
Abstract:
A metal air battery includes: a battery module comprising a metal air cell configured to use oxygen as a positive electrode active material; an air channel unit including a fluid tube extending from a side of a cathode layer of the metal air cell to a side of a metal anode layer of the metal air cell; and an air supply unit configured to supply air to the air channel unit, wherein the fluid tube is configured to direct air from the side of the cathode layer of the metal air cell to the side of the metal anode layer of the metal air cell.
Abstract:
A metal-air battery includes a battery module configured to provide electricity by oxidation of a metal and reduction of oxygen in air; and a first air purifier in fluid communication with the battery module and including a condenser configured to condense moisture in the air and remove the condensed moisture.
Abstract:
A metal air battery having an air purification module and a method of operating the metal air battery, the metal air battery including: a battery cell module configured to generate electricity using oxidation of a metal and reduction of oxygen; an air purification module including a first adsorption unit and being configured to supply air purified by the first adsorption unit to the battery cell module, the first adsorption unit being configured to adsorb an impurity; and a detection module configured to detect a concentration of the impurity, wherein the air purification module further includes a recycling unit configured to desorbs the impurity adsorbed into the first adsorption unit;and a controller configured to control an operation of the recycling unit based on the concentration of the impurity detected by the detection module.
Abstract:
A photocatalyst for air purification, a photocatalyst film including the photocatalyst, and an air purification device including the photocatalyst. The photocatalyst for air purification includes: a first metal oxide particle having ultraviolet absorptivity, and fluorine bound to a surface of the first metal oxide particle; second metal oxide particles present on the surface of the first metal oxide particle. The use of the photocatalyst for air purification to remove or degrade volatile organic compounds (VOCs) and viruses.
Abstract:
A cathode configured to use oxygen as a cathode active material, the cathode comprising a lithium-containing metal oxide comprising at least one of:
a spinel compound represented by Formula 1
Li1±xM2±yO4−δ Formula 1
wherein, in Formula 1, M is at least one metal element belonging to Group 2 to Group 16 of the periodic table of the elements, 0
Abstract:
An air purifier includes a reactor having a hollow shape extending in a first direction, a first purifying portion disposed inside the reactor in a fixed manner, where the first purifying portion has a facing surface perpendicular to the first direction, and includes an adsorbent for adsorbing a pollutant inflowing into the reactor and a first catalytic oxidant for removing a desorbed pollutant, and a heating portion disposed opposite to the facing surface, where the heating portion applies heat to a partial area of the first purifying portion, and is movable with respect to the first purifying portion along a plane perpendicular to the first direction.
Abstract:
A ceramic catalyst filter, a filtering system including the same, and a method of manufacturing the same. The ceramic catalyst filter includes: a single body ceramic filter including a first surface for blocking a first material and a second surface for removing the second material passing through the first surface; and a photocatalyst thin film including nanometer-scale grains coated on a surface of the ceramic filter.
Abstract:
A metal-air battery apparatus includes an inlet module and a main module each having a metal-air battery cell structure including a positive electrode and a negative electrode. The inlet module and the main module are electrically controlled and independently controlled from each other, and a channel through which a fluid such as air flows is defined between the inlet module and the main module. A temperature of the inlet module and a temperature of the main module are independently controlled by adjusting a discharge current density or by charging or a temperature adjustor.
Abstract:
A mixed conductor represented by Formula 1: A4+xM5-yM′yO12-δ, Formula 1 wherein, in Formula 1, A is a monovalent cation, M is at least one of a divalent cation, a trivalent cation, or a tetravalent cation, M′ is at least one of a monovalent cation, a divalent cation, a trivalent cation, a tetravalent cation, a pentavalent cation, or a hexavalent cation, M and M′ are different from each other, and 0.3≤x