Abstract: Disclosed herein relates to a battery pack, in which a plurality of cell stack assemblies are housed in a pack case, excluding the frame of a module, thereby providing efficient heat dissipation during normal operation. Additionally, the battery pack has an advantage in enhancing safety against ignition or explosion. In the event of abnormal operation, where any of the cell stack assemblies generates heat or undergoes thermal runaway, the heat from the affected cell stack assembly can be prevented from propagating to adjacent cell stack assemblies by forming a separation space between a base plate and the corresponding cell stack assembly through the vaporization of a heat-conducting pad.

Abstract: The present invention relates to a negative electrode active material for a secondary battery and a manufacturing method thereof. A negative electrode active material, according to one embodiment of the present invention, comprises silicon-based primary particles, and a particle size distribution of the silicon-based primary particles is D10?50 nm and D90?150 nm. The negative electrode active material suppresses or reduces tensile hoop stress generated in lithiated silicon particles during a charging of a battery to thus suppress a crack due to a volume expansion of the silicon particles and/or an irreversible reaction caused by the crack, such that the lifetime and capacity of the battery can be improved.

Abstract: The present invention relates to a negative electrode active material for a secondary battery and a manufacturing method thereof. A negative electrode active material, according to one embodiment of the present invention, comprises silicon-based primary particles, and a particle size distribution of the silicon-based primary particles is D10?50 nm and D90?150 nm. The negative electrode active material suppresses or reduces tensile hoop stress generated in lithiated silicon particles during a charging of a battery to thus suppress a crack due to a volume expansion of the silicon particles and/or an irreversible reaction caused by the crack, such that the lifetime and capacity of the battery can be improved.

Abstract: The present invention relates to a cathode active material for a secondary battery and a manufacturing method thereof. A cathode active material, according to one embodiment of the present invention, comprises silicon-based primary particles, and a particle size distribution of the silicon-based primary particles is D10?50 nm and D90?150 nm. The cathode active material suppresses or reduces tensile hoop stress generated in lithiated silicon particles during a charging of a battery to thus suppress a crack due to a volume expansion of the silicon particles and/or an irreversible reaction caused by the crack, such that the lifetime and capacity of the battery can be improved.

Abstract: The present invention relates to a method for preparing silicon-based active material particles for a secondary battery and silicon-based active material particles. The method for preparing silicon-based active material particles according to an embodiment of the present invention comprises the steps of: providing silicon powder; dispersing the silicon powder into an oxidant solvent to provide a mixture prior to grinding; fine-graining the silicon powder by applying mechanical compression and shear stress to the silicon powder in the mixture prior to grinding to produce silicon particles; producing a layer of chemical oxidation on the fine-grained silicon particles with the oxidant solvent while applying mechanical compression and shear stress to produce silicon-based active material particles; and drying the resulting product comprising the silicon-based active material particles to yield silicon-based active material particles.

Abstract: The present invention relates to a method for producing silicon-based active material particles for a secondary battery and silicon-based active material particles. A method for producing silicon-based active material particles for a secondary battery according to an embodiment of the present invention may comprise: a step of providing silicon powder; a step of providing a pre-pulverization mixture in which the silicon powder is dispersed in a solvent for dispersion comprising an antioxidant; a step of applying mechanical compression and shear stress to the silicon powder of the pre-pulverization mixture to refine the silicon powder, thereby forming silicon particles having an oxygen content controlled by the antioxidant; and a step of drying the resulting material comprising the silicon particles to obtain silicon-based active material particles.

Abstract: A display device with integrated touch screen is provided. The display device includes a panel configured to include a plurality of electrodes and to be division-driven in a display driving mode and a touch driving mode during one frame period, a display driver IC configured to apply a common voltage to the plurality of electrodes during the display driving mode, and an ROIC configured to apply, to the plurality of electrodes, a touch scan signal for sensing a touch when the touch driving mode is a first touch driving mode, and apply, to the plurality of electrodes, a touch scan signal for detecting a touch input position when the touch driving mode is a second touch driving mode.

Abstract: The present invention relates to a silicon-based anode active material and a method of fabricating the same. The silicon-based anode active material according to an embodiment of the present invention comprises: particles comprising silicon and oxygen combined with the silicon, wherein a carbon-based conductive layer is coated with on outermost surface of the particles; and phosphorus doped in the particles, wherein a content of the phosphorus with respect to a total weight of the particles and the phosphorus doped in the particles have a range of 0.01 wt % to 15 wt %, and a content of the oxygen has a range of 9.5 wt % to 25 wt %.

Abstract: The present invention relates to a silicon-based anode active material and a method for manufacturing the same. The silicon-based anode active material according to an embodiment of the present invention comprises: particles comprising silicon and oxygen combined with the silicon, and having a carbon-based conductive film coated on the outermost periphery thereof; and boron doped inside the particles, wherein with respect to the total weight of the particles and the doped boron, the boron is included in the amount of 0.01 weight % to 17 weight %, and the oxygen is included in the amount of 16 weight % to 29 weight %.

Abstract: A CVD apparatus includes a process chamber, a susceptor, an auxiliary supporting part, a gas spray part, and a shadow frame. The susceptor may be in the process chamber to support and heat a mother substrate. The auxiliary supporting part may be mounted on the susceptor in a tetragonal frame form to support and heat an edge of the mother substrate supported by the susceptor. The gas spray part may be in the process chamber to face the susceptor and may spray a process gas to the mother substrate. The shadow frame may cover an edge of the auxiliary supporting part and an edge of the susceptor extending from the edge of the auxiliary supporting part.

Abstract: Provided is an anode active material for a secondary battery and a method of fabricating the anode active material. A silicon-based active material composite according to an embodiment of the inventive concept includes silicon and silicon oxide obtained by oxidizing at least a part of the silicon, and an amount of oxygen with respect to a total weight of the silicon and the silicon oxide is restricted to 9 wt % to 20 wt %.

Abstract: Provided is a negative active material and a lithium secondary battery including the negative active material. The negative active material for a secondary battery includes silicon particles, wherein circularities of the particles are determined by equation 1 below, and the circularities are 0.5 or greater and 0.9 or less, Circularity=2(pi×A)1/2/P??[Equation 1] where A denotes a projected area of the silicon particle that is two-dimensionally projected, and P denotes a circumferential length of the silicon particle that is two-dimensionally projected.

Abstract: The present invention relates to a method for preparing silicon-based active material particles for a secondary battery and silicon-based active material particles. The method for preparing silicon-based active material particles according to an embodiment of the present invention comprises the steps of: providing silicon powder; dispersing the silicon powder into an oxidant solvent to provide a mixture prior to grinding; fine-graining the silicon powder by applying mechanical compression and shear stress to the silicon powder in the mixture prior to grinding to produce silicon particles; producing a layer of chemical oxidation on the fine-grained silicon particles with the oxidant solvent while applying mechanical compression and shear stress to produce silicon-based active material particles; and drying the resulting product comprising the silicon-based active material particles to yield silicon-based active material particles.

Abstract: Described herein is a semiconductor light emitting device. The semiconductor light emitting device comprises: an n-type semiconductor layer; a V-pit formed through at least part of the n-type semiconductor layer; an active layer disposed on the n-type semiconductor layer and filling the V-pit; and a p-type semiconductor layer disposed on the active layer, wherein the active layer includes a plurality of layers and part of the plural layers has a flat shape on the V-pit.

Abstract: Provided is an anode active material for a secondary battery and a method of fabricating the anode active material. A silicon-based active material composite according to an embodiment of the inventive concept includes silicon and silicon oxide obtained by oxidizing at least a part of the silicon, and an amount of oxygen with respect to a total weight of the silicon and the silicon oxide is restricted to 9 wt % to 20 wt %.

Abstract: The present invention relates to a method for preparing silicon-based active material particles for a secondary battery and silicon-based active material particles. The method for preparing silicon-based active material particles according to an embodiment of the present invention comprises the steps of: providing silicon powder; dispersing the silicon powder into an oxidant solvent to provide a mixture prior to grinding; fine-graining the silicon powder by applying mechanical compression and shear stress to the silicon powder in the mixture prior to grinding to produce silicon particles; producing a layer of chemical oxidation on the fine-grained silicon particles with the oxidant solvent while applying mechanical compression and shear stress to produce silicon-based active material particles; and drying the resulting product comprising the silicon-based active material particles to yield silicon-based active material particles.

Abstract: Provided is an anode active material for a secondary battery and a method of fabricating the anode active material. A silicon-based active material composite according to an embodiment of the inventive concept includes silicon and silicon oxide obtained by oxidizing at least a part of the silicon, and an amount of oxygen with respect to a total weight of the silicon and the silicon oxide is restricted to 9 wt % to 20 wt %.

Abstract: The present invention relates to a cathode active material for a secondary battery and a manufacturing method thereof. A cathode active material, according to one embodiment of the present invention, comprises silicon-based primary particles, and a particle size distribution of the silicon-based primary particles is D10?50 nm and D90?150 nm. The cathode active material suppresses or reduces tensile hoop stress generated in lithiated silicon particles during a charging of a battery to thus suppress a crack due to a volume expansion of the silicon particles and/or an irreversible reaction caused by the crack, such that the lifetime and capacity of the battery can be improved.

Abstract: The present invention relates to a method for producing silicon-based active material particles for a secondary battery and silicon-based active material particles. A method for producing silicon-based active material particles for a secondary battery according to an embodiment of the present invention may comprise: a step of providing silicon powder; a step of providing a pre-pulverization mixture in which the silicon powder is dispersed in a solvent for dispersion comprising an antioxidant; a step of applying mechanical compression and shear stress to the silicon powder of the pre-pulverization mixture to refine the silicon powder, thereby forming silicon particles having an oxygen content controlled by the antioxidant; and a step of drying the resulting material comprising the silicon particles to obtain silicon-based active material particles.

Abstract: Described herein is a semiconductor light emitting device. The semiconductor light emitting device comprises: an n-type semiconductor layer; a V-pit formed through at least part of the n-type semiconductor layer; an active layer disposed on the n-type semiconductor layer and filling the V-pit; and a p-type semiconductor layer disposed on the active layer, wherein the active layer includes a plurality of layers and part of the plural layers has a flat shape on the V-pit.