Abstract: Provided an air cleaning system, which includes: a first reactor which has a first inlet and a first outlet and in which a channel is formed; a first moisture adsorption filter and a first water-soluble gas pollutant adsorption filter that are provided inside the first reactor and are provided so that a gas passes therethrough sequentially while flowing along the channel from the first inlet to the first outlet; a plurality of first magnetrons that are provided at a lateral portion of the first reactor so as to correspond respectively to the first moisture adsorption filter and the first water-soluble gas pollutant adsorption filter and selectively apply microwaves to the first moisture adsorption filter and the first water-soluble gas pollutant adsorption filter; and a heat exchanger that receives hot air containing a water-soluble gas pollutant and moisture, both of which are desorbed from the first moisture adsorption filter and the first water-soluble gas pollutant adsorption filter and are discharged by

Abstract: An adsorbent having a microwave absorption property is provided. The adsorbent having an improved microwave absorption property, which has a core-shell structure including a silicon carbide bead disposed therein, and an adsorbing material disposed outside the silicon carbide bead, can be provided. Also, the adsorbent may further include a plurality of silicon carbide particles dispersed and disposed therein and having a diameter of 1 ?m to 10 ?m, and the adsorbing material may be ion-exchanged with a cation. Therefore, the adsorbent can be useful in improving desorption efficiency since the adsorbent may be rapidly heated by microwaves to reach the desorption temperature due to high reactivity to microwaves. Also, the adsorbent can be useful in maintaining full adsorption capacity without having an influence on adsorption quantity since the silicon carbide bead is disposed in the inner core of the adsorbent.

Abstract: Provided an air cleaning system, which includes: a first reactor which has a first inlet and a first outlet and in which a channel is formed; a first moisture adsorption filter and a first water-soluble gas pollutant adsorption filter that are provided inside the first reactor and are provided so that a gas passes therethrough sequentially while flowing along the channel from the first inlet to the first outlet; a plurality of first magnetrons that are provided at a lateral portion of the first reactor so as to correspond respectively to the first moisture adsorption filter and the first water-soluble gas pollutant adsorption filter and selectively apply microwaves to the first moisture adsorption filter and the first water-soluble gas pollutant adsorption filter; and a heat exchanger that receives hot air containing a water-soluble gas pollutant and moisture, both of which are desorbed from the first moisture adsorption filter and the first water-soluble gas pollutant adsorption filter and are discharged by

Abstract: An adsorbent having a microwave absorption property is provided. The adsorbent having an improved microwave absorption property, which has a core-shell structure including a silicon carbide bead disposed therein, and an adsorbing material disposed outside the silicon carbide bead, can be provided. Also, the adsorbent may further include a plurality of silicon carbide particles dispersed and disposed therein and having a diameter of 1 ?m to 10 ?m, and the adsorbing material may be ion-exchanged with a cation. Therefore, the adsorbent can be useful in improving desorption efficiency since the adsorbent may be rapidly heated by microwaves to reach the desorption temperature due to high reactivity to microwaves. Also, the adsorbent can be useful in maintaining full adsorption capacity without having an influence on adsorption quantity since the silicon carbide bead is disposed in the inner core of the adsorbent.

Abstract: The present invention relates to an cathode active material for lithium secondary battery and a lithium secondary battery including the same, and more specifically, it relates to an anode active material for lithium secondary battery which includes a concentration gradient layer having a controlled thickness and a shell layer on the periphery of the core layer of the anode active material having a layered structure and in which the lithium ion diffusion paths in the primary particles and the secondary particles are formed to exhibit directivity in a specific direction, and a lithium secondary battery including the same.

Abstract: The present disclosure relates to a volatile organic compound removal system using microwaves, the system having a structure wherein an adsorption filter and an oxidation filter for oxidizing VOCs desorbed from the adsorption filter are arranged successively in a flow path of air containing VOCs, and the adsorption filter and the oxidation filter are respectively heated by using microwaves. The system includes: a first body part having first inlet and outlet, and the flow path therein; first adsorption filter and oxidation filter provided in the first body part and provided to allow gases flowing in the flow path to pass successively in the direction from the first inlet to outlet; and a plurality of first magnetrons provided at one side of the first body part to respectively correspond to the first adsorption filter and oxidation filter, and selectively irradiating microwaves to the first adsorption filter and oxidation filter.

Abstract: The present invention relates to an anode active material for lithium secondary battery and a lithium secondary battery including the same, and more specifically it relates to an anode active material for lithium secondary battery in which the a lithium ion diffusion path in the primary particles is formed to exhibit specific directivity, and a lithium secondary battery including the same. The cathode active material for lithium secondary battery of the present invention has a lithium ion diffusion path exhibiting specific directivity in the primary particles and the secondary particles, thus not only the conduction velocity of the lithium ion is fast and the lithium ion conductivity is high but also the cycle characteristics are improved as the crystal structure hardly collapses despite repeated charging and discharging.

Abstract: The present invention provides a catalyst for the decomposition of a perfluorinated compound containing a halogen acid gas, and a preparation method thereof. According to the present invention, the Ru—P—Al tri-component catalyst for the decomposition of a perfluorinated compound shows an excellent decomposition activity and durability with respect to the decomposition and removal of a perfluorinated compound containing a halogen acid gas, and thus can be used to decompose a chamber cleaning gas, an etchant, a solvent and the like of a perfluorinated compound from the semiconductor manufacturing industry to the LCD processing field. In addition, the present invention can be useful for decomposing and removing a perfluorinated compound discharged in a process using a halogen acid gas such as F2, Cl2, Br2 and the like.

Abstract: The present invention provides a method for manufacturing an anode active material for a lithium secondary battery comprising the following steps of: a) simultaneously mixing a first metallic salt aqueous solution including nickel, cobalt, manganese and optionally a transition metal, a chelating agent, and a basic aqueous solution in a reactor, and mixing with a lithium raw material and calcining to manufacture a center part including the compound of following Chemical Formula 1: Lix1[Ni1?y1?z1?w1Coy1Mnz1Mw1]O2??Chemical Formula 1 (wherein, 0.9?x1?1.3, 0.1?y1?0.3, 0.0?z1?0.3, 0?w1?0.

Abstract: The present invention provides a catalyst for the decomposition of a perfluorinated compound containing a halogen acid gas, and a preparation method thereof. According to the present invention, the Ru—P—Al tri-component catalyst for the decomposition of a perfluorinated compound shows an excellent decomposition activity and durability with respect to the decomposition and removal of a perfluorinated compound containing a halogen acid gas, and thus can be used to decompose a chamber cleaning gas, an etchant, a solvent and the like of a perfluorinated compound from the semiconductor manufacturing industry to the LCD processing field. In addition, the present invention can be useful for decomposing and removing a perfluorinated compound discharged in a process using a halogen acid gas such as F2, Cl2, Br2 and the like.

Abstract: The present invention relates to a method for preparing a positive electrode active material precursor and a positive electrode material for a lithium secondary battery having a concentration-gradient layer using a batch reactor, and to a positive electrode active material precursor and a positive electrode material for a lithium secondary battery prepared by the method.

Abstract: The present invention provides a method for manufacturing an anode active material for a lithium secondary battery comprising the following steps of: a) simultaneously mixing a first metallic salt aqueous solution including nickel, cobalt, manganese and optionally a transition metal, a chelating agent, and a basic aqueous solution in a reactor, and mixing with a lithium raw material and calcining to manufacture a center part including the compound of following Chemical Formula 1: Lix1[Ni1?y1?z1?w1Coy1Mnz1Mw1]O2??Chemical Formula 1 (wherein, 0.9?x1?1.3, 0.1?y1?0.3, 0.0?z1?0.3, 0?w1?0.

Abstract: This invention relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same, and particularly to a positive electrode active material for a lithium secondary battery, in which a lithium composite oxide having a composition of LiNi1-xMxO2 (wherein M represents one or a combination of two elements selected from the group consisting of Co, Al, Mn, Mg, Fe, Cu, Ti, Sn and Cr, and 0.96?x?1.05) is surface-modified using carbon or an organic compound, thereby achieving superior stability and improved high-rate capability compared to conventional positive electrode active materials, and to a lithium secondary battery including the same.

Abstract: A cathode for lithium secondary batteries coated with a slurry including an active material, a binder and a solvent, and further including a polymerization inhibitor, is disclosed. Gelation of the slurry is prevented during production of the cathode so that adhesion of the slurry is enhanced, thus achieving improved coating properties of the cathode and facilitating the coating of the slurry.

Abstract: Provided are a cathode active material for a non-aqueous electrolyte lithium secondary battery, a process for preparing the same and a lithium secondary battery comprising the same. The cathode active material for a non-aqueous electrolyte lithium secondary battery is represented by the formula LiaNi1?(v+w+x+y+z)MnvCowMxM?yM?zO2 wherein M, M? and M? are independently selected from the group consisting of Al, Mg, Sr, Ca, P, Pb, Y and Zr, and mixtures thereof, a is in a range of 0.9 to 1.05, 1?(v+w+x+y+z) is in a range of 0.685 to 0.745, v is in a range of 0.05 to 0.06, w is in a range of 0.20 to 0.24, and x+y+z is in a range of 0.005 to 0.015.