Abstract: A separator for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided, and the separator for the rechargeable lithium battery includes a porous substrate and a coating layer on at least one surface of the porous substrate and including polyethylene particles and ceramics. The content of the polyethylene particles is 40 to 65 wt % by weight of the content of the porous substrate, the weight-average molecular weight of the polyethylene particles ranges from 1000 g/mol to 3000 g/mol, and the mixing ratio (ratio by weight) of the polyethylene particles to the ceramics ranges from 95:5 to 80:20.

Abstract: A separator for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided, and the separator for a rechargeable lithium battery comprises: a porous substrate; and a coating layer disposed on at least one surface of the porous substrate and comprising first polyethylene particles, second polyethylene particles, and ceramics, wherein the ratio of the average size of the second polyethylene particles to the average size of the first polyethylene particles ranges from 25 to 80%.

Abstract: Disclosed is a secondary battery including a case configured to surround an exterior of an electrode assembly, and a strain sensor attached to an exterior of the case to detect deformation of the case. The strain sensor may include a backing part attached to the exterior of the case; a strain gauge installed on the backing part and formed of single-crystal silicon; a wiring part stacked on the backing part, along with the strain gauge, and electrically connected to the strain gauge; and an encapsulation part fixed to the backing part while surrounding the strain gauge and the wiring part excluding a portion of the wiring part.

Abstract: A rechargeable battery according to the present disclosure includes: an electrode assembly; a pouch case that includes a first receiving portion surrounding a part of the electrode assembly, a second receiving portion that is coupled with the first receiving portion while surrounding the rest of the electrode assembly, and a penetration portion penetrating one or more of the first receiving portion and second receiving portion, and that receives the electrode assembly; and a venting member that is provided in the penetration portion, and is opened when an internal pressure reaches a threshold pressure.

Abstract: A rechargeable battery includes: a case receiving an electrode assembly and including an opening; a cap assembly including a cap plate coupled to the case to cover the opening, and a terminal plate thermally fused to the cap plate by a thermal-fusion member, the thermal-fusion member electrically insulating the cap plate and the terminal plate from each other; and a sealing part attached to and located on a side of the thermal-fusion member, a side surface of the terminal plate, and an outer surface of the cap plate.

Abstract: A positive electrode layer for an all-solid secondary battery, an all-solid secondary battery including the positive electrode layer, a method of preparing the positive electrode layer, and a composition, the positive electrode layer including a positive electrode current collector and a positive active material layer on the positive electrode current collector, wherein the positive active material layer includes a positive active material, a binder, a conducting agent, a sulfide solid electrolyte, and a dispersion medium, the dispersion medium including a compound represented by Formula 1 and a compound represented by Formula 2, R1—C(?O)O—R2??Formula 1 in Formula 1, R1 is a C1-C2 alkyl group and R2 is a C7-C9 alkyl group, R2?—OH??Formula 2 in Formula 2, R2? is a C7-C9 alkyl group.

Abstract: An electrode assembly includes: a plurality of positive electrodes and a plurality of negative electrodes, alternately and repeatedly stacked; a plurality of separators between the positive electrodes and the negative electrodes, respectively, to protrude from the positive electrodes and the negative electrodes and stacked such that first surfaces at edges thereof face each other; and a fixing member including an adhesive layer adhered to the first surfaces of the separators that are facing each other.

Abstract: A rechargeable battery module may include a plurality of battery cells stacked in a first direction, a busbar holder configured to at least partially cover the battery cells while exposing the electrode terminals of the battery cells upwardly, a busbar connecting the electrode terminals of the battery cells exposed through a busbar support portion of the busbar holder, a flexible printed circuit (FPC) forming an exposure hole in a vertical direction perpendicular to the first direction, the flexible printed circuit being disposed on and electrically connected to the busbar to expose a copper thin film portion of the flexible printed circuit in a direction toward the busbar, and a metal tab inserted into an interior of the flexible printed circuit, the metal tab being electrically connected to a surface of the copper thin film portion, and exposed outwardly through the exposure hole.

Abstract: In particular, the present disclosure relates to an HV side-based overcurrent and overvoltage protection circuit for an HV DC/DC flyback switching power supply, which is powered from the HV peaks produced by the switching of the HV DC/DC flyback switching power supply. According to one aspect of the present disclosure, the protection circuit comprises a protection circuit transistor located on an HV input side) of the HV DC/DC flyback switching power supply; a rectifying diode, wherein the rectifying diode is configured for rectifying voltage peaks caused by the inductance of a primary inductor on the HV input side to power the protection circuit; and a sensing block configured to detect an electrical failure on the HV input side.

Abstract: Examples of the disclosure include a separator for a lithium secondary battery, and a lithium secondary battery including the separator. The separator for a lithium secondary battery includes a porous substrate; and a coating layer which is located on at least one side of the porous substrate and that includes polyethylene particles and ceramics, wherein the ceramics have an aspect ratio of 1.5-3.0.

Abstract: A separator for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. Specifically, provided is a separator for a rechargeable lithium battery including a substrate and a coating layer on at least one surface of the substrate; the coating layer includes three-dimensional structured particles including an organic filler; and wire-type particles.

Abstract: The present disclosure relates to a secondary battery capable of additionally supplementing an electrolyte, and at least one problem to be solved is to provide a secondary battery capable of additionally supplementing the electrolyte. To this end, provided is a secondary battery comprising: an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a case accommodating the electrode assembly; a cap plate sealing an upper opening of the case and having an injection hole that is a supply passage for electrolyte; and a safety valve installed on the cap plate, sealing the injection hole by a magnetic force and moving by external force to open the injection hole.

Abstract: Disclosed are an organic optoelectronic device includes an anode and a cathode facing each other and an organic layer disposed between the anode and the cathode, wherein the organic layer includes at least one of a hole injection layer, a hole transport layer, a light emitting layer, and an electron transport layer, and the light emitting layer includes a first host, a second host, and a phosphorescent dopant represented by Chemical Formula 4, and a display device including the same.

Abstract: A negative active material for a rechargeable lithium battery and a rechargeable lithium battery, the negative active material including secondary particles of agglomerated primary particles, the primary particles including Si particles with SiC on a surface of the Si particles; and an amorphous carbon surrounding the secondary particles, wherein a peak intensity ratio (ISi(111)/ISiC(111)) of a peak intensity (ISi(111))) at a Si (111) plane relative to a peak intensity (ISiC(111)) at a SiC (111) plane is about 5 to about 50 measured by X-ray diffraction analysis using a CuK? ray.

Abstract: Provided are a composition for coating a separator, a method of preparing a separator by using the same, a separator, and a lithium battery employing the separator. The composition for coating a separator includes: a polyacrylamide-based copolymer including a cross-linking reactive group; inorganic particles; and water, and the cross-linking reactive group includes at least two functional groups cross-linkable with each other. The composition for coating a separator may be used as a one-component type without a crosslinker, and a separator having high thermal resistance characteristics may be prepared by using the composition.

Abstract: A curable resin composition includes a silicon-containing polymer, hollow silica particles having greater than or equal to two times higher a maximum peak value in a Q4 region than that in a Q3 region, as measured by silicon nuclear magnetic resonance spectroscopy (Si-NMR) analysis. A solvent, a thin film prepared from the composition, and a color conversion panel including the thin film, and a display device including the color conversion panel are also provided.

Abstract: A polarizing plate and an optical display apparatus including the same are provided. A polarizing plate includes a polarizer; and a first retardation layer and a second retardation layer sequentially stacked on a lower surface of the polarizer, and the first retardation layer has an in-plane retardation of about 180 nm to about 220 nm at a wavelength of about 550 nm; and the second retardation layer has an in-plane retardation of about 80 nm to about 100 nm at a wavelength of about 550 nm.

Abstract: An electrode assembly of the present disclosure includes: a first electrode plate and a second electrode plate, each of the first electrode plate and the second electrode plate comprising an electrode current collector and an electrode substrate tab extending externally from a portion of the electrode current collector; a separator interposed between the first electrode plate and the second electrode plate; and a reinforcing member interposed between the separator and an outermost electrode plate disposed at an outermost position of the electrode assembly, the outermost electrode plate being the first electrode plate of the second electrode plate, wherein the reinforcing member is disposed to correspond to an edge portion of the electrode current collector and the electrode substrate tab of the outermost electrode plate.

Abstract: A battery protection apparatus including: a fuse element on a current path between a battery module and an external load to block the current path; and an ignition switch configured to receive an operating voltage from the battery module or a capacitor charged by the battery module, to ignite the fuse element.

Abstract: A rechargeable lithium battery includes: a positive electrode; a negative electrode; a separator between the positive electrode and the negative electrode; an electrolyte including vinylene carbonate; and a case accommodating the positive electrode, the negative electrode, the separator, and the electrolyte. At least in a portion of an interior of the case has a coating portion containing lithium borate particles.