Abstract: An anode active material for a secondary battery includes a carbon-based active material, and silicon-based active material particles doped with magnesium. At least some of the silicon-based active material particles include pores, and a volume ratio of pores having a diameter of 50 nm or less among the pores is 2% or less based on a total volume of the silicon-based active material particles.

Abstract: The present invention relates to an electrolyte solution and a secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery having improved charging efficiency and output due to low discharge resistance and having a long lifespan and excellent high-temperature capacity retention by suppressing gas generation and increase in thickness.

Abstract: The present invention relates to an electrolyte solution and a secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery having improved charging efficiency and output due to low discharge resistance and having a long lifespan and excellent high-temperature capacity retention by suppressing gas generation and increase in thickness.

Abstract: The present invention relates to an electrolyte solution and a secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery having improved charging efficiency and output due to low discharge resistance and having a long lifespan and excellent high-temperature capacity retention by suppressing gas generation and increase in thickness.

Abstract: The technology and implementations disclosed in this patent document generally relate to a lithium secondary battery including: a first unit cell including a first anode including a 1-1 anode mixture layer and a 1-2 anode mixture layer on the 1-1 anode mixture layer, and a second unit cell including a second anode including a 2-1 anode mixture layer and a 2-2 anode mixture layer on the 2-1 anode mixture layer, wherein a weight ratio of the silicon-based active material in the 1-2 anode mixture layer is greater than a weight ratio of the silicon-based active material in the 1-1 anode mixture layer, and a weight ratio of the silicon-based active material in the 2-2 anode mixture layer is less than or equal to a weight ratio of the silicon-based active material in the 2-1 anode mixture layer.

Abstract: The present invention relates to an electrolyte solution and a secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery having improved charging efficiency and output due to low discharge resistance and having a long lifespan and excellent high-temperature capacity retention by suppressing gas generation and increase in thickness.

Abstract: In some implementations, the anode includes a current collector, a first anode mixture layer formed on at least one surface of the current collector, and a second anode mixture layer formed on the first anode mixture layer. The first anode mixture layer and the second anode mixture layer include a carbon-based active material, respectively. The first anode mixture layer includes a first binder, a first silicon-based active material, and a first conductive material. The second anode mixture layer includes a second binder, a second silicon-based active material, and a second conductive material. Contents of the first conductive material and the second conductive material are different from each other with respect to the total combined weight of the first anode mixture layer and the second anode mixture layer. Types of the first silicon-based active material and the second silicon-based active material are different from each other.

Abstract: An anode for a lithium secondary battery includes an anode current collector, and an anode active material layer formed on at least one surface of the anode current collector. The anode active material layer includes a carbon-based active material, a first silicon-based active material doped with magnesium and a second silicon-based active material not doped with magnesium. A content of the first silicon-based active material is in a range from 2 wt % to 20 wt % based on a total weight of the anode active material layer.

Abstract: Disclosed is a fluidized bed atomic layer deposition device for manufacturing nanocoating particles. A fluidized bed atomic layer deposition device according to an embodiment of the present invention comprises: a fluidized bed reactor, into which particles to be coated are injected; a reaction material supply unit for supplying reaction gases for coating the particles to be coated into the fluidized bed reactor; and a vibration pump coupled to the fluidized bed reactor such that the reaction gases can move therethrough, the vibration pump giving the reaction gasses regular vibration and thereby forming a turbulence inside the fluidized bed reactor.

Abstract: A temperature control system includes an air duct, an air-blowing device, a seat back temperature control unit, and a seat cushion temperature control unit. The air-blowing device urges air to flow through the air duct. The seat back temperature control unit and the seat cushion temperature control unit performs heat exchanges between air flowing in the air duct and air supplied to a seat back and air supplied to a seat cushion, respectively. The air duct forms a single air passage passing by the seat back temperature control unit and the seat cushion temperature control unit so that the air flowing in the air duct undergoes heat exchange with one of the seat back temperature control unit and the seat cushion temperature control unit and then undergoes heat exchange with the other.

Abstract: A temperature control system includes an air duct, an air-blowing device, a seat back temperature control unit, and a seat cushion temperature control unit. The air-blowing device urges air to flow through the air duct. The seat back temperature control unit and the seat cushion temperature control unit performs heat exchanges between air flowing in the air duct and air supplied to a seat back and air supplied to a seat cushion, respectively. The air duct forms a single air passage passing by the seat back temperature control unit and the seat cushion temperature control unit so that the air flowing in the air duct undergoes heat exchange with one of the seat back temperature control unit and the seat cushion temperature control unit and then undergoes heat exchange with the other.

Abstract: The present invention relates to a SMIS system for managing systematically an implementation status of an aviation safety regulation, and more particularly, to a SMIS system for analyzing, complementing and assessing automatically an implementation status of an aviation safety regulation in own country on the basis of standards and recommended practices prescribed in the annexes for 18 fields published and managed by the International Civil Aviation.

Abstract: The present invention relates to a process for preparing granular sodium percarbonate.