Abstract: The present invention relates to an apparatus, system, and method for collecting gas generated in a secondary battery, specifically, to an apparatus, system, and method for collecting gas, which allow an operator to collect gas generated inside a secondary battery according to a desired section.

Abstract: A non-aqueous electrolyte solution and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes an HF indicator, and a pouch-type lithium secondary battery includes a pouch case having a transparent identification part for observing the interior of the pouch-type battery from the exterior of the pouch case. Defects generated during the preparation of the secondary battery may be visually identified based on the presence of hydrofluoric acid without disassembling the pouch-type battery.

Abstract: A cell composition includes neural stem cells and neural stem cells derived from mesenchymal stem cells, and at least one selected from the group consisting of immature neural stem cells and mesenchymal stem cells. The number of the neural stem cells is at least 70% of the number of the cells included in the cell composition, and the total number of the cells of the immature neural stem cells and the mesenchymal stem cells is at most 30% of the number of the cells included in the cell composition. The cell composition has a very low probability of being developed into a cancer cell and thus can be used as a cell therapeutic.

Abstract: A method of manufacturing a flexible display device includes forming a base substrate on a first sacrificial layer formed on a first supporting substrate, forming a display device array on the base substrate, forming a second sacrificial layer on a second supporting substrate, forming a touch array on the second sacrificial layer, adhering the first supporting substrate onto the second supporting substrate using an adhesive, irradiating laser energy onto the first sacrificial layer to remove the first sacrificial layer and separate the first supporting substrate from the base substrate, and irradiating laser energy onto the second sacrificial layer to separate interfaces of the second supporting substrate and the second sacrificial layer from each other, such that the second sacrificial layer is fixed on the touch array, The second sacrificial layer includes at least one of oxidized molybdenum, lead zirconate titanate, gallium nitride, and an amorphous silicon based inorganic material.

Abstract: A method of manufacturing a flexible display device includes forming a base substrate on a first sacrificial layer formed on a first supporting substrate, forming a display device array on the base substrate, forming a second sacrificial layer on a second supporting substrate, forming a touch array on the second sacrificial layer, adhering the first supporting substrate onto the second supporting substrate using an adhesive, irradiating laser energy onto the first sacrificial layer to remove the first sacrificial layer and separate the first supporting substrate from the base substrate, and irradiating laser energy onto the second sacrificial layer to separate interfaces of the second supporting substrate and the second sacrificial layer from each other, such that the second sacrificial layer is fixed on the touch array, The second sacrificial layer includes at least one of oxidized molybdenum, lead zirconate titanate, gallium nitride, and an amorphous silicon based inorganic material.

Abstract: A method for differentiation of neural stem cells, neurons and GABAergic neurons from mesenchymal stem cells includes culturing the mesenchymal stem cells in a medium containing SB431542, Noggin and LDN193189. By this method, the mesenchymal stem cells are differentiated into neural stem cells, neurons and GABAergic neurons at a high transformation rate without gene manipulation.

Abstract: A data transmission method and apparatus initialize an index of a modulation and coding scheme (MCS) for transmitting data to a terminal, adjust the index of the MCS based on at least one of a hybrid automatic repeat request (HARM) feedback of the terminal and a channel quality of the terminal, and transmit the data to the terminal based on the adjusted index of the MCS.

Abstract: The present disclosure refers to a cathode material composite having improved conductivity, and a cathode and electrochemical device having the cathode material composite. In accordance with one embodiment of the present disclosure, a conductive polymer is positioned on the surface of a shell present in the form of a tetragonal structure in the lithium manganese oxide, thereby enhancing electrical conductivity to be highly involved in reaction around 3V, and providing a conductive path to improve the capacity, life and rate characteristics of an electrochemical device.

Abstract: An organic light-emitting diode (OLED) display is disclosed. In one aspect, the display includes a substrate, a plurality of OLEDs provided over the substrate, and a plurality of pixel circuits provided between the substrate and the OLEDs. Each of the pixel circuits comprises a plurality of transistors each including an active pattern electrically connected to the respective OLEDs. A shield layer overlaps the pixel circuits and the active patterns of the transistors in the depth dimension of the OLED display.

Abstract: The present disclosure relates to a positive electrode for a lithium secondary battery including an electrode current collector, and a positive electrode active material layer coated on at least a part of the electrode current collector, wherein the positive electrode active material layer includes a manganese-based positive electrode active material, and a porosity is from 30% to 35%, to improve high-temperature storage characteristics and high-temperature cycle characteristics.

Abstract: An electrode mixture of the present invention comprises: an electrode active material; a binder; and a conductive material. When a cross-section of the electrode mixture is imaged such that a pixel filled 100% with a conductive material among a plurality of divided pixels is considered to be a condensed pixel and a value obtained by counting condensed pixels is considered to be the degree of agglomeration, the degree of agglomeration of a conductive material in the electrode mixture in the depth direction of the electrode mixture has a standard deviation less than 3.0. The electrode mixture as described above includes a conductive material uniformly distributed therein and thus has low electrode resistance. Therefore, the electrode mixture can improve output and lifespan properties of a lithium secondary battery to which the electrode mixture has been applied.

Abstract: The present disclosure provides a method for preparing a lithium secondary battery by bringing a first cell using a first cathode active material of formula (I) Li(LixMy?y?M?y?)O2?zAz??(I) wherein, x, y, y?, and z satisfy 0<x<0.5, 0.6<y<1.1, 0?y?<0.2, and 0?z<0.2, M is any one selected from the group consisting of Mn, Ni, Co, Fe, Cr, V, Cu, Zn, and Ti, M? is any one selected from the group consisting of Al, Mg and B; and A is any one selected from the group consisting of F, S and N and a second cell using a second cathode active material being generally used into activation under different voltage conditions, and then electrically connecting the first cell and the second cell in the step of assembling unit cells; and a lithium secondary battery prepared from the method.

Abstract: The present disclosure provides a method for removing gases generated in a lithium secondary battery using a cathode active material of the following formula (I) Li(LixMy?y?M?y?)O2?zAz??(I) wherein, x, y, y?, and z satisfy 0<x<0.5, 0.6<y?<1.1, 0?y?<0.2, and 0?z<0.2, M is any one selected from the group consisting of Mn, Ni, Co, Fe, Cr, V, Cu, Zn, and Ti, M? is any one selected from the group consisting of Al, Mg and B; and A is any one selected from the group consisting of F, S and N by carrying out two or more degassing steps under the conditions of above and below a voltage that the structural variation of the cathode active material occurs, thereby inducing a uniform initial reaction in a cathode and an anode to enhance the life time of the battery.

Abstract: A high-strength spring steel coil spring of a vehicle suspension, having excellent corrosion resistance, may include 0.4 to 0.9 wt % of C, 0.9 to 2.3 wt % of Si, 0.5 to 1.2 wt % of Mn, 0.6 to 1.5 wt % of Cr, 0.01 to 0.5 wt % of Mo, 0.01 to 0.9 wt % of Ni, 0.5 wt % or less (excluding 0 wt %) of V, 0.5 wt % or less (excluding 0 wt %) of Nb, 0.3 wt % or less (excluding 0 wt %) of Ti, 1.0 wt % or less (excluding 0 wt %) of Co, 0.1 wt % or less (excluding 0 wt %) of B, 0.3 wt % or less (excluding 0 wt %) of W, 0.3 wt % or less (excluding 0 wt %) of Cu, 0.3 wt % or less (excluding 0 wt %) of Al, 0.03 wt % or less (excluding 0 wt %) of N, 0.003 wt % or less (excluding 0 wt %) of O, and a remainder of Fe and inevitable impurities.

Abstract: Provided are a cathode active material composition including an xLi2MO3.(1?x)LiMeO2 composite (where 0<x<1, and M and Me represent metal ions and may be the same or different from each other) and a conductive polymer material, and a secondary battery including the cathode active material composition in a cathode. Since the conductivity of the secondary battery of the present invention may be improved, the cathode active material composition may improve life characteristics, output characteristics, and rate capability of the secondary battery.

Abstract: A method for differentiation of neural stem cells, neurons and GABAergic neurons from mesenchymal stem cells includes culturing the mesenchymal stem cells in a medium containing SB431542, Noggin and LDN193189. By this method, the mesenchymal stem cells are differentiated into neural stem cells, neurons and GABAergic neurons at a high transformation rate without gene manipulation.

Abstract: An electrode assembly, comprises one or more first electrodes comprising a cathode; one or more second electrodes comprising an anode; and a separator sheet having a zigzag form interposed therebetween. The separator sheet comprises a first porous polymer substrate; a first coating layer formed on one surface of the first porous polymer substrate and comprising a polymer binder, the first coating layer being faced with the cathode; and a second coating layer formed on the other surface of the first porous polymer substrate and comprising a mixture a polymer binder and inorganic particles, the second coating layer being faced with the anode and having a composition, a thickness and a porosity different from those of the first porous coating layer. A separator has porous coating layers with a different composition, thickness or porosity formed on each surface thereof.

Abstract: Disclosed are a cathode active material for high voltage lithium secondary batteries and a lithium secondary battery including the same and, more particularly, the present invention relates to a cathode active material for lithium secondary batteries that includes a lithium transition metal oxide having a lithium molar fraction of greater than 1, containing a relative excess of nickel, and having a composition represented by Formula 1 below, wherein the lithium transition metal oxide has a Li2MnO3-like structure phase: Li1+aNibCocMn1?(a+b+c+d)MdO2-tAt??(1) wherein 0.05?a?0.2, 0.4?b?0.7, 0.1?c?0.4, 0?d?0.1, and 0?t<0.2; M is at least one divalent or trivalent metal; and A is at least one monovalent or divalent anion.

Abstract: A method of manufacturing a flexible display device includes forming a base substrate on a first sacrificial layer formed on a first supporting substrate, forming a display device array on the base substrate, forming a second sacrificial layer on a second supporting substrate, forming a touch array on the second sacrificial layer, adhering the first supporting substrate onto the second supporting substrate using an adhesive, irradiating laser energy onto the first sacrificial layer to remove the first sacrificial layer and separate the first supporting substrate from the base substrate, and irradiating laser energy onto the second sacrificial layer to separate interfaces of the second supporting substrate and the second sacrificial layer from each other, such that the second sacrificial layer is fixed on the touch array, The second sacrificial layer includes at least one of oxidized molybdenum, lead zirconate titanate, gallium nitride, and an amorphous silicon based inorganic material.

Abstract: A data transmission method and apparatus initialize an index of a modulation and coding scheme (MCS) for transmitting data to a terminal, adjust the index of the MCS based on at least one of a hybrid automatic repeat request (HARM) feedback of the terminal and a channel quality of the terminal, and transmit the data to the terminal based on the adjusted index of the MCS.