Abstract: The present application relates to a resin composition for 3D printing, a 3D printing method using the same, and a three-dimensional shape comprising the same, and provides a resin composition which is capable of precisely forming a three-dimensional shape and implementing uniform curing properties of a three-dimensional shape.

Abstract: A battery module includes a plurality of battery cells; a module housing configured to accommodate a cell stack including the plurality of battery cells; a sprinkler provided through the module housing at one side of the cell stack in a stacking direction; and a thermally expanding block disposed in an empty space inside the module housing and configured to be thermally expanded according to a temperature rise inside the module housing.

Abstract: A battery rack includes a plurality of battery modules including at least one battery cell and a module case configured to accommodate the at least one battery cell and including a fire extinguishing unit capable of supplying a fire extinguishing agent into the module case when thermal runaway or fire occurs in the at least one battery cell; a rack case configured to accommodate the plurality of battery modules; and a drainage guide unit provided to the rack case and configured to guide the fire extinguishing agent used when the thermal runaway or fire occurs to be drained.

Abstract: A battery module includes a cell stack having a plurality of battery cells; a module case configured to accommodate the cell stack; a pair of module covers configured to cover openings at both sides of the module case; and a ventilation unit installed through the module cover. The ventilation unit includes a one-way venting valve disposed at a center of a perforation hole formed through the module cover; a first hole sealing portion attached onto an inner wall of the perforation hole; and a second hole sealing portion attached onto an outer circumference of the one-way venting valve.

Abstract: A battery module includes a unit module stack formed by stacking a plurality of unit modules, each unit module having a plurality of battery cells stacked on each other; a swelling absorption pad interposed between the unit modules adjacent to each other; and a module housing configured to accommodate the unit module stack and the swelling absorption pad, wherein the swelling absorption pad has a coolant channel formed to extend along a longitudinal direction thereof.

Abstract: A cured object and a method for producing the same are disclosed herein. In some embodiments, the method of producing a cured object includes introducing a resin composition including a resin and magnetic powder into one or more slots of a tubular object, wherein the resin composition includes a resin and a magnetic powder, wherein the tubular object includes a penetration space and an edge region having the one more slots formed therein, and wherein the penetration space and the one or more slots are formed in a longitudinal direction of the tubular object; inserting a solenoid coil into the penetration space of the tubular object; and generating a magnetic field with the solenoid coil to cure the resin present in the one or more slots of the tubular object. The cured resin object can also have excellent withstand voltage characteristics.

Abstract: A battery pack includes a plurality of battery modules respectively having at least one battery cell, a rack case configured to accommodate the plurality of battery modules, a fire distinguishing water supply unit disposed at the rear of the rack case and connected to the plurality of battery modules, and a bracket unit configured to cover the fire distinguishing water supply unit and disposed at the rear of the rack case.

Abstract: The present application provides a method for manufacturing a metal foam. The present application can provide a method for manufacturing a metal foam, which is capable of forming a metal foam comprising uniformly formed pores and having excellent mechanical properties as well as the desired porosity, and a metal foam having the above characteristics. In addition, the present application can provide a method capable of forming a metal foam in which the above-mentioned physical properties are ensured, while being in the form of a thin film or sheet, within a fast process time, and such a metal foam.

Abstract: A battery module includes a plurality of battery cells; a module housing configured to accommodate a cell stack including the plurality of battery cells; and a sprinkler provided through the module housing at one side of the cell stack in a stacking direction, and the sprinkler includes a coupler positioned at an outer side of the module housing and connected to a supply tube that supplies a cooling fluid; a sprinkler head positioned at an inner side of the module housing and connected to the coupler; and an insulation cover including a fixing portion fixed to the module housing and a cover portion fixed to the fixing portion by a bonding layer to cover the sprinkler head and configured to be separated from the fixing portion over a reference temperature as a bonding force of the bonding layer is decreased or lost.

Abstract: A battery pack includes at least two battery modules arranged in one direction; and a fire extinguisher having a linear temperature sensor partially extending linearly along the at least two battery modules and configured to sense whether at least one of the at least two battery modules has a temperature over a predetermined temperature, a fire extinguishing tank configured to accommodate a fire extinguishing agent therein, a pipe connected to the fire extinguishing tank to supply the fire extinguishing agent from the fire extinguishing tank to each of the at least two battery modules, and a valve opened to supply the fire extinguishing agent from the fire extinguishing tank to the battery module over the predetermined temperature.

Abstract: A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.

Abstract: Discussed is a battery diagnosis system for a battery pack including a battery group of a plurality of batteries connected in series, and a battery management system to transmit a notification signal indicating a battery parameter of each of the plurality of batteries. The battery diagnosis system includes a communication device to collect the notification signal via at least one of a wired network or a wireless network, a data preprocessing device to update big data indicating a change history of the battery parameter of each battery based on the notification signal, and a data analysis device to determine dispersion information of a data set including a plurality of characteristics values indicating the battery parameter of each of the plurality of batteries from the big data, and determine whether each battery is faulty based on the dispersion information and the plurality of characteristics values.

Abstract: A battery module includes a cell stack including a plurality of battery cells stacked in a direction, a module housing having an internal space in which the cell stack is received and an air inlet and an air outlet through which air enters and exits, a valve installation hole formed through a side wall of the module housing, a feed valve nozzle installed at the valve installation hole facing the internal space of the module housing, and a water expandable member provided in the module housing. The water expandable member expands in volume when it absorbs water during operation of the feed valve nozzle to close at least one of the air inlet, the air outlet or the valve installation hole.

Abstract: An energy storage system includes a plurality of battery modules, a rack case configured to accommodate the plurality of battery modules, a coolant tank provided to an upper side of the rack case and containing a predetermined coolant, a pipe unit configured to connect the coolant tank and the plurality of battery modules, and a valve unit provided between the pipe unit and the coolant tank and configured to be opened when at least one battery module has a temperature over a predetermined temperature among the plurality of battery modules to discharge the coolant of the coolant tank to the pipe unit so that the coolant is supplied to the battery module over the predetermined temperature.

Abstract: A battery module includes a plurality of battery cells; a module housing configured to accommodate a cell stack including the plurality of battery cells; a sprinkler provided through the module housing at one side of the cell stack in a stacking direction; and at least one guide plate fixed inside the module housing and installed to be inclined so that one longitudinal end thereof is oriented toward the sprinkler.

Abstract: A battery module includes a battery cell, a module case configured to accommodate the battery cell and a fire extinguishing unit mounted to penetrate into the module case and connected to a fire extinguishing tank unit containing a fire extinguishing agent to directly inject the fire extinguishing agent into the module case when a thermal runaway or fire occurs at the at least one battery cell.

Abstract: A battery module includes at least one battery cell; and a module case configured to accommodate the at least one battery cell, wherein a fire extinguishing agent supply channel connected to a fire extinguishing tank containing a fire extinguishing agent to directly inject the fire extinguishing agent into the module case when a thermal runaway or fire occurs at the at least one battery cell is provided to an inside of at least one side of the module case.

Abstract: Provided is a battery pack having an improved temperature control performance. The battery pack includes a plurality of battery modules including at least one secondary battery therein and spaced apart from each other by a predetermined distance, and a bridge member including a heat conductive material and configured to receive heat generated from at least one battery module by being disposed in contact with at least two battery modules among the plurality of battery modules.

Abstract: The coating composition of the present application has excellent antistatic properties and thus can be used as an antistatic hard coating film. The coating composition of the present application may comprise a salt based on a polyoxometalate anion and a radically polymerizable cation, and a radically polymerizable binder to form an antistatic hard coating film having excellent antistatic property, abrasion resistance and moist-heat resistance. Such a film can be used for an optical laminate and a display device, and the like.

Abstract: Methods for manufacturing a composite material and composite materials are provided. The method may include preparing a metal foam, preparing a mixture including the metal foam and a curable polymer, curing the curable polymer of the mixture to obtain a composite material, and performing a planarization treatment. The planarization treatment may be performed on the metal foam before preparing the mixture, on the mixture before curing the curable polymer, and/or on the composite material. The composite materials may include a metal foam and a polymer that is on a surface and/or in pores of the metal foam. The composite material may have a surface roughness of 2 ?m or less and/or may have a thermal resistance of 0.5 Kin2/W or less at 20 psi.