Abstract: An energy storage system, connected with a photovoltaic system and a power grid, may include a plurality of DC/DC converters for controlling a plurality of battery racks, a power conversion system for controlling power in connection with the plurality of DC/DC converters and the photovoltaic system, and a power management controller for determining operating modes and outputting references of the power conversion system and the plurality of DC/DC converters according to a state of the photovoltaic system.

Abstract: An induction heating device according to an embodiment comprises: a working coil which is disposed at a position corresponding to a heating area where an object to be heated is placed, and forms a load together with the object to be heated; a resonant capacitor which forms a resonant circuit together with the working coil; an inverter circuit which includes a plurality of switching elements and supplies a current to the working coil; a first voltage sensor which measures a voltage value applied to the resonant capacitor; a second voltage sensor which measures a supply voltage value supplied to the resonant circuit through the inverter circuit; and a controller which, when the working coil is in operation, calculates at least one of the resistance value of the load and the inductance of the load on the basis of the voltage value of the resonant capacitor and the supply voltage value.

Abstract: A method for assigning communication IDs and a system for allocating communication IDs includes a plurality of slave battery management systems (BMSs) sequentially connected to a power line for supplying power, and allocating predetermined communication IDs based on a first current amount applied through the power line, at least one of the slave BMSs outputs a second current amount that is the first current amount minus a consumed current amount for driving through the power line, and the first current amount corresponds to a summation value of a consumed current amount of the slave BMS receiving the first current amount and a consumed current amount of at least one posterior slave BMS sequentially connected to the slave BMS receiving the first current amount.

Abstract: The present invention provides a battery safety test device includes: a mechanical switch element having one end connected to either a battery positive or negative electrode and the other end connected to an electronic switching element; the electronic switching element having one end connected to the mechanical switch element and the other end connected to the other of the battery positive or negative electrode; a voltage sensor for measuring a voltage of the battery after the mechanical switch element and the electronic switching element are turned on; and a current sensor for measuring a current of the battery after the mechanical switch element and the electronic switching element are turned on.

Abstract: A battery module includes a battery cell assembly formed by stacking two or more columns of longitudinal unit cells, each of which is composed of two or more battery cells arranged in a line in a longitudinal direction and connected, a hollow center guard disposed at a connection position of end portions of the battery cells, which face each other in the longitudinal direction, in the longitudinal unit cell, and a module case in which the battery cell assembly and the hollow center guard are accommodated, wherein a first venting hole communicating with a hollow of the hollow center guard is provided in a sidewall of the hollow center guard, and a second venting hole communicating with the hollow of the hollow center guard is provided in the module case configured to cover an upper portion of the hollow center guard. A battery pack includes the battery module.

Abstract: A method for preparing a carbon nanostructure including molybdenum disulfide is discussed. More particularly, a method is discussed for preparing a carbon nanostructure in which molybdenum disulfide is located on the surface by melt diffusion and heat treatment of a mixture of a molybdenum precursor, a carbon nanostructure, and sulfur. Also, a positive electrode of a lithium secondary battery including a carbon nanostructure including molybdenum disulfide as an additive, and a lithium secondary battery including the same. In the case of the lithium secondary battery including the positive electrode to which the carbon nanostructure including molybdenum disulfide was applied, the carbon nanostructure including the molybdenum disulfide adsorbs lithium polysulfide (LiPS) generated during the charging/discharging process of the lithium secondary battery, thereby increasing the charging/discharging efficiency of the battery and improving lifetime characteristics.

Abstract: According to one embodiment of the present invention, an electronic substrate includes a base including a first surface and a second surface that is a surface opposite to the first surface, an electronic component disposed on the second surface of the base, and a line disposed on the second surface of the base and connected to the electronic component, wherein the base includes a frame region including a flexible material and a plurality of opening regions passing between the first surface and the second surface, and the electronic component and the line are disposed in the frame region.

Abstract: An electrode sheet drying equipment, an electrode sheet manufacturing system including the same, and an electrode sheet drying method including an air-floating roller disposed downstream of a drying oven, and the air-floating roller is configured to spray hot air through multiple air spraying holes formed on the outer circumferential surface. Accordingly, the electrode sheet discharged from the drying oven in a partially undried state can be additionally dried, thereby preventing contamination of a transfer roller and/or equipment of the subsequent process.

Abstract: A display device according to an embodiment of the present disclosure, comprising a display, a wireless communication interface for Bluetooth connection with a wireless device and a control unit configured to: in a state where a Bluetooth connection is established with the wireless device, receive a device switching request requesting a Bluetooth connection to another display device is received, transmit a first Bluetooth information of the display device the other display device according to the received device switching request, and disconnect the Bluetooth connection with the wireless device.

Abstract: A battery includes an electrode assembly defining a core and an outer circumference by winding a first electrode, a second electrode, and a separator interposed therebetween around a winding center, each of the first electrode and the second electrode includes a first uncoated portion and a second uncoated portion on which an active material layer is not coated along the winding direction; a battery housing accommodating the electrode assembly through an opening formed on one side thereof; a cap including a venting portion, covering the opening, and electrically connected to the battery housing and the first uncoated portion; and a battery terminal penetrating one surface of the battery housing and electrically connected to the second uncoated portion.

Abstract: A media data processing apparatus according to embodiments may comprise: a reception unit that receives a media data service and receives, from a service list server, a service list for the media data service; and a processor that processes media data on the basis of the service list. A media data processing method according to embodiments may comprise the steps of: receiving a media data service and receiving, from a service list server, a service list for the media data service; and processing media data on the basis of the service list.

Abstract: A secondary battery manufacturing method injects large amount of electrolyte twice, and reflects the average value of the amount of firstly injected electrolyte into the amount of secondly injected electrolyte to allow electrolyte to be quantitatively injected in a short time. This can reduce the defect rate when manufacturing batteries such as a large-capacity secondary battery or a long cell model secondary battery in which electrolyte 200 g or more is injected, and can also better improve the performance of the secondary battery.

Abstract: A display device includes a substrate in which a plurality of sub pixels is defined; a first lower assembly electrode disposed in each of the plurality of sub pixels; an interlayer insulating layer disposed below the first lower assembly electrode; a second lower assembly electrode disposed below the interlayer insulating layer; a passivation layer disposed on the first lower assembly electrode and the second lower assembly electrode; and a first upper assembly electrode and a second upper assembly electrode which are disposed on the passivation layer and are disposed to be spaced apart from each other, and a minimum interval of the first lower assembly electrode and the second lower assembly electrode is smaller than a minimum interval of the first upper assembly electrode and the second upper assembly electrode on the plane.

Abstract: The embodiment relates to a magnet unit of a semiconductor light emitting device for a display pixel and a self-assembly device using the same. A magnet unit according to an embodiment includes a magnet body and a magnet control unit disposed around an outer circumference of the magnet body. The magnet control unit includes a first magnet focusing unit spaced apart from an outer circumference of the magnet body and a first spacer disposed between the magnet body and the first magnet focusing unit.

Abstract: A battery includes an electrode assembly including a first uncoated region and a second uncoated region; a battery housing accommodating the electrode assembly and electrically connected to the second uncoated region; a cap to cover an open portion on bottom of the battery housing; a first electrode terminal passing through a partially closed portion of the battery housing and being electrically isolated from the battery housing; and a first current collector coupled to the first uncoated region and connected to the first electrode terminal.

Abstract: A manufacturing apparatus of an electrode for a secondary battery includes a transfer unit that transfers a current collector from an unwinder, a coating unit that applies an electrode active material to at least one surface of the current collector, a rolling unit that is arranged on the transfer unit and rolls the electrode active material layer composed of the electrode active material, and a pressing unit that is arranged adjacent to the rolling unit and presses the non-coated part of the current collector to which the electrode active material is not applied. The pressing unit includes a roll member and a ring assembly that is detachably coupled to the roll member and comes into contact with the non-coated part to press the non-coated part.

Abstract: A display apparatus includes a mode controller configured to generate a first control signal and a second control signal by using a gate-off voltage and a gate-on voltage; a gate driving circuit configured to generate an emission signal; a first pixel circuit including a driving transistor, a first transistor receiving the first control signal, a second transistor receiving the second control signal, a third transistor receiving the emission signal, a first light emitting element connected to the first transistor, and a second light emitting element connected to the second transistor; a first lens disposed on the first light emitting element; and a second lens disposed on the second light emitting element.

Abstract: A display device includes a data line transmitting a data voltage to each pixel, a power line supplying current to each pixel, wherein the data line and the power line are disposed on a substrate and extended along a first direction, a light shielding layer shielding a light emitting diode from light coming from outside, a gate line transmitting a gate voltage to each pixel and extended along a second direction intersecting the first direction, a gate insulating layer and a buffer layer disposed between the data line and the gate line, wherein the data line and the power line are disposed on a same layer as the light shielding layer.

Abstract: The present invention relates to an electrode tab welding apparatus for welding electrode tabs of a pouch-shaped battery to each other in a state of gathering the electrode tabs using tab guides in a preliminary welding step of welding the electrode tabs to each other before welding the electrode tabs and an electrode lead of the pouch-shaped battery to each other and an electrode tab welding method using the same.

Abstract: A battery includes an electrode assembly including a first electrode, a second electrode and a separator between the first electrode and the second electrode wound around a winding axis to define a core and an outer circumferential surface, the first electrode including a first uncoated region in which an active material layer is not coated along a winding direction; a housing accommodating the electrode assembly through an open portion at a lower end thereof; a first current collector coupled to the first uncoated region and disposed in the housing; a cap to cover the open portion; and a spacer between the first current collector and the cap and having a height corresponding to a distance between the first current collector and the cap.

Abstract: A light emitting display device includes a display panel including a first pixel group including a plurality of pixels in 2N rows. The light emitting display device further includes a second pixel group disposed subsequent to the first pixel group and including a plurality of pixels in 2N rows. The light emitting display device further includes an emission signal unit including a first emission stage for applying the same first emission signal to the first pixel group and a second emission stage for applying the same second emission signal to the second pixel group. In a first frame, a falling time of the first emission signal and a rising time of the second emission signal are different from each other.

Abstract: A cylindrical battery includes an electrode assembly having a first uncoated portion and a second uncoated defined as an electrode tab; a battery housing accommodating the electrode assembly through an opening and electrically connected to the second uncoated portion; an electrode terminal riveted through a perforated hole formed in a closed portion of the battery housing and electrically connected to the first uncoated portion; an insulating gasket interposed between the electrode terminal and the perforated hole; and a cap plate configured to cover the opening of the battery housing. The electrode terminal includes a body portion; an outer flange portion extending along an outer surface of the closed portion exposed through the outer surface of the closed portion; an inner flange portion extending toward an inner surface of the closed portion exposed through the inner surface; and a flat portion provided on an inner side of the inner flange portion.

Abstract: A resin composition or a cured body thereof that exhibits low adhesion force to a predetermined adherend while exhibiting high thermal conductivity is provided. Also, the low adhesion force can be achieved without using an adhesion force adjusting component such as a plasticizer or in a state where the use ratio thereof is minimized. A product comprising the curable composition or the cured body thereof is also provided.

Abstract: A foil tab forming apparatus forms at least one foil tab of a positive electrode foil tab and a negative electrode foil tab respectively provided at a top portion and a bottom portion of an electrode assembly. The foil tab forming apparatus includes a pre-forming jig configured to bend the foil tab by pressing the foil tab, while moving in a direction from an outer circumferential portion of the electrode assembly to a winding center portion of the electrode assembly and a forming jig configured to press the foil tab that has been primarily bent by the pre-forming jig, by moving along a direction parallel to a winding axis of the electrode assembly.

Abstract: A separator cutting apparatus includes: a fixing part configured to fix temporarily the electrode assembly; a cutter supporting part disposed above the fixing part; a cutter part disposed below the cutter supporting part, and configured to cut a separator among the electrode assembly temporarily fixed to the fixing part; and a spring part configured to connect elastically the cutter supporting part and the cutter part to each other, and return the cutter part to an initial position after cutting the separator; the spring part includes a spring bush coupled to a supporting shaft provided in the cutter supporting part and the cutter part, respectively, a spring holder integrally coupled to the spring bush, and a spring that expands and contracts according to the elevation of the cutter part by coupling both ends to the spring holder, and the spring holder and the spring bush are made of a non-metallic material.

Abstract: A display apparatus can include a buffer layer on a flexible substrate; a first thin film transistor on the buffer layer including a first semiconductor pattern, a first gate electrode, a first source electrode and a first drain electrode, a second thin film transistor including a second semiconductor pattern, a second gate electrode, a second source electrode and a second drain electrode, and a passivation layer on the first and the second thin film transistors. Also, the display apparatus includes a planarization layer, a light-emitting device including a first electrode, a light-emitting layer and a second electrode on the planarization layer, and an encapsulating element on the light-emitting device. Also, the light-emitting device is electrically connected to the first thin film transistor, the first semiconductor pattern includes silicon, and the second semiconductor pattern includes an oxide semiconductor pattern, and the second gate electrode includes lower and upper electrodes.

Abstract: An electroluminescent display apparatus includes a display panel including first and second pixel, a data voltage supply unit supplying the first pixel with a first data voltage of a first gate signal and supplying the second pixel with a second data voltage of a second gate signal in a vertical active period of a first frame and continuously supplying the second pixel with a sensing data voltage and a recovery data voltage of a third gate signal in a vertical blank period of the first frame, and a sensing circuit sensing an electrical characteristic of the second pixel based on the sensing data voltage in the vertical blank period. The recovery data voltage is supplied to the second pixel later than the sensing data voltage. The recovery data voltage supplied to the second pixel in the vertical blank period includes the first and second data voltages.

Abstract: Disclosed is a display device, including a display module outputting an image, a body housing having the display module located on a front side, a stand comprising a pair of coupling parts coupled to both horizontal sides of the body housing, respectively and a support part connected to a pair of the coupling parts, and a hinge module fastening the coupling parts of the stand and the body housing together, wherein the hinge module is switchable between a first state having the support part of the stand located in a rear side direction of the body housing and a second state having the support part of the stand located in a first direction of the body housing.

Abstract: A precursor for a positive electrode active material and a method of making the same are disclosed herein. In some embodiments, a method includes forming precursor seeds for a positive electrode active material by a co-precipitation reaction while supplying a transition metal aqueous solution, an ammonium cationic complexing agent, and a basic compound to a reaction solution, and growing precursor particles for a positive electrode active material from the precursor seeds by a co-precipitation reaction while supplying a transition metal aqueous solution, an ammonium cationic complexing agent, and a basic compound to the reaction solution containing the precursor seeds, wherein feed rates for the transition metal aqueous solution and the ammonium cationic complexing agent to grow the precursor particles are two or more times greater than feed rates for the transition metal aqueous solution and the ammonium cationic complexing agent to grow the precursor seeds.

Abstract: An encapsulant composition for an optical device; comprises an ethylene/alpha-olefin copolymer having high volume resistance and light transmittance. An encapsulant film for an optical device using the same is also provided.

Abstract: The present invention provides an apparatus for manufacturing a secondary battery, which includes a pressing part configured to press a stack in which electrodes and separators are alternately disposed, wherein the pressing part includes: a main pressing part configured to press an entire surface of the stack; and a sub pressing part including a drum part configured to press a partial surface of the stack, on which an edge part of an electrode active material layer provided on each of the electrodes is disposed, on the entire surface, wherein the drum part includes: a body part having a rotational shaft; and an elastic part provided on an outer circumferential surface of the body part and configured to press the partial surface of the stack.

Abstract: Disclosed is a transition metal compound that exhibits high activity and high comonomer incorporation in olefin polymerization and can be used for preparing a polyolefin having a BOCD structure, a method for preparing the same, and a catalyst composition including the same.

Abstract: In the present disclosure, there are provided a vinyl alcohol-based copolymer including a first repeating unit derived from an olefin, a second repeating unit containing a hydroxyl group, and a third repeating unit containing a cyanoalkyloxy group formed by a reaction of the repeating unit containing a hydroxyl group and an unsaturated nitrile-based compound, wherein the third repeating unit is included in an amount of 2 mol % or more and less than 10 mol % with respect to 100 mol % of a total amount of the second repeating unit and the third repeating unit; a method for preparing the same; and a gas barrier film including the same. The vinyl alcohol-based copolymer has excellent moisture stability, thereby exhibiting excellent gas barrier properties even in a humid environment.

Abstract: Disclosed herein relates to an electrode sheet drying device including a guide roller having a plurality of perforated holes formed on the outer circumferential surface, and the guide roller is configured to vacuum cling an electrode sheet to prevent an electrode sheet from being lifted from the guide roller during a drying process, thereby having an effect of mitigating the occurrence of creases in a non-coated part and preventing lifting of a current collector and the occurrence of cracks.

Abstract: A method for replicating a holographic optical element and a holographic optical element replicated thereby are provided. The holographic optical element is larger than a master. The master has a holographic grating pattern generated on the master by interference of the reflected, diffracted or transmitted beam generated by irradiating the master having a specific diffraction grating pattern formed thereon with a laser beam.

Abstract: The present disclosure relates to a preparation method for a super absorbent polymer capable of minimizing bubble loss during foam polymerization by a radical polymerization method. According to the preparation method of the present disclosure, a super absorbent polymer having a high surface area can be manufactured by forming many small and uniform pores. Since it exhibits an excellent absorption rate, it can be used in various products requiring high absorption properties.

Abstract: A display apparatus can include a flexible substrate including a penetrating hole, a first thin film transistor including a first semiconductor layer, a second thin film transistor including a second semiconductor layer, and a first planarization layer on the first and second thin film transistors. The display apparatus can include a connection electrode on the first planarization layer electrically connected to the first or second thin film transistor, a second planarization layer on the first planarization layer, a first electrode on the second planarization layer electrically connected to the connection electrode, and a bank layer on the second planarization layer exposing a portion of the first electrode. The display apparatus includes a light-emitting layer on the portion of the first electrode exposed by the bank layer, the light-emitting layer including an emission material layer between first and second organic layers, and a second electrode on the light-emitting layer.

Abstract: The present disclosure provides a novel compound represented by the following Chemical Formula 1, and an organic light emitting device including the same: wherein R1, R2, and n1 are described herein.

Abstract: Provided are an electrode assembly, a battery, and a battery pack and vehicle including the same. An electrode assembly, in which a first electrode, a second electrode, and a separator interposed therebetween are wound about an axis to define a core and an outer circumferential surface. At least one of the first electrode and the second electrode includes, at a long side end portion, an uncoated portion exposed beyond the separator in a direction of the axis. At least a part of the uncoated portion is bent in a radial direction of the electrode assembly to define a bent surface region having overlapping layers of the uncoated portion. The bent surface region includes a welding target region having a number of the overlapping layers of the uncoated portion, and the welding target region extends along a radial direction of the electrode assembly.

Abstract: A heat exchanger includes a heat transfer pipe for guiding a refrigerant; and a plurality of fins which respectively have a through-hole through which the heat transfer pipe passes and are disposed spaced apart from each other to allow air to pass in a first direction, wherein the fin includes: a corrugated form portion having an inclination with the first direction which is an air flow direction; and a sheet portion comprising a surface parallel to the first direction around the through hole, the sheet portion has a first length in the first direction which is an air flow direction, and has a second length longer than the first length in a second direction perpendicular to the air flow direction.

Abstract: Disclosed is a battery system including: a battery pack including a plurality of battery cells, and a plurality of pressure sensing pads connected to the plurality of battery cells in parallel, and attached to external surfaces of the plurality of battery cells, and having resistance values which vary according to an applied pressure; and a battery management system (BMS) configured to derive a plurality of cell voltages for the plurality of battery cells, respectively, and determine that the battery pack is in an abnormal state when at least one of the plurality of derived cell voltages is equal to or less than a threshold voltage.

Abstract: The present disclosure provides a waveguide display apparatus. The waveguide waveguide display apparatus of the present disclosure is a waveguide display apparatus for correcting curved surface reflection distortion, the waveguide display apparatus including a waveguide for guiding light inputted from the outside; a first diffractive optical element disposed at the waveguide, and diffracting the light inputted from the outside to the inside of the waveguide; and a second diffractive optical element disposed at the waveguide, and diffracting the light guided by the waveguide to output a plurality of diffracted lights in a direction of a curved surface reflector located outside, wherein the second diffractive optical element has a structure of a diffraction grating corresponding to a curvature of the curved surface reflector such that the diffracted lights are reflected at different locations of the curved surface reflector in directions parallel to each other.

Abstract: A pouch-type battery case according to an embodiment of the invention may accommodate an electrode assembly, in which electrodes and separators are alternately stacked. The pouch-type battery case may include: a pair of recess parts, each of which has a recessed shape; a pair of terraces that are disposed around the pair of recess parts and are inclined downward in a direction closer to each other in a state; in which the battery case is unfolded; and a bridge disposed between the pair of recess parts, configured to connect the pair of recess parts to each other, having a pair of connection surfaces formed to be inclined upward from a bottom surface of each of the pair of recess parts in a direction closer to each other. In the state in which the battery case is unfolded, an angle formed by the pair of terraces may be an obtuse angle.

Abstract: Disclosed herein are systems, methods, and computer program products for operating a lidar system (LS). The methods comprise: receiving result values (RVs) from photodetectors (the RVs based on operations performed by each photodetector to facilitate measurements associated with a light signal reflected off an object external to LS); combining different sets of RVs to generate super pixels; using super pixels to obtain spatiotemporal coherence metrics; selecting a subset of light pulses or a group of RVs based on the spatiotemporal coherence metrics; and detecting a distance between LS and object based on the selected subset of light pulses or the selected group of RVs. The methods enable variable resolution imaging systems in which the resolution of the pixel can be configured to automatically integrate a variable number of spatial and temporal measurements that belong to the same object to improve detection quality rather than using a fixed number of measurements.

Abstract: Provided are a method for performing wireless communication by a first device, and a device supporting same. The method may comprise the steps of: establishing a connection between the first device and a second device; transmitting a first radio resource control (RRC) reconfiguration sidelink message including a first sidelink (SL) discontinuous reception (DRX) configuration to the second device, wherein the first SL DRX configuration includes information related to a first SL DRX cycle and information related to a first active time; receiving, from the second device, failure information of the first SL DRX configuration; in response to the failure information, transmitting, to the second device, request information for requesting assistance information for reconfiguration of the first SL DRX configuration; and in response to the request information, receiving the assistance information from the second device.

Abstract: A light path control device includes a substrate, a first viewing angle control member on the substrate comprising a first electrode, a second electrode, and a liquid crystal layer between the first electrode and the second electrode, and a second viewing angle control member on the first viewing angle control member comprising light shielding patterns patterned at predetermined intervals.

Abstract: A battery module has an improved structure to improve safety when a thermal event occurs in the battery module. A battery module includes a cell assembly including one or more battery cells, a module case having an inner space in which the cell assembly is accommodated, and an expansion member located in the module case, and configured to fill at least a part of an empty space in the module case by being expanded in volume when heat is supplied.

Abstract: A display device can include a first substrate having an active area and a non-active area, where the non-active area includes a plurality of first areas spaced apart from each other and a plurality of second areas disposed between the plurality of first areas. The display device can further include a plurality of first pad electrodes disposed on the plurality of first areas, a plurality of side lines disposed on the plurality of first pad electrodes, and a plurality of step compensation layers disposed in the plurality of second areas. By additionally forming the step compensation layers in the second areas, it is possible to compensate for step differences between the plurality of first areas and the plurality of second areas.

Abstract: An electroluminescent display device includes a display part configured to display an image. Also, the electroluminescent display device includes an encapsulation unit disposed over the display part and a heat dissipation sheet disposed over the encapsulation unit. The encapsulation unit includes a sealing member composed of a first adhesive layer, a second adhesive layer, and a barrier layer between the first adhesive layer and the second adhesive layer. Further, the encapsulation unit includes a hole in the second adhesive layer and the barrier layer. A side surface of the barrier layer may be electrically connected to the heat dissipation sheet through a conductive paste injected into the hole. Thus, it is possible to improve electromagnetic interference.

Abstract: The present disclosure relates to a method of performing data transmissions in a Radio Resource Control (RRC) INACTIVE state by a user equipment (UE) in a wireless communication system. Especially, the method includes the steps of generating a first data that can be transmitted in the RRC INACTIVE state; triggering a first random access (RA) procedure for transmitting the first data in the RRC INACTIVE state; generating a second data that cannot be transmitted in the RRC INACTIVE state while the first RA procedure is ongoing; and transmitting a RRC message for transitioning to a RRC CONNECTED state, wherein applying ciphering to the RRC message is determined based on whether the second data being generated after a contention resolution succeeds related to the first RA procedure or not.