Abstract: A rechargeable battery includes: an electrode assembly; a case comprising a first sheet disposed at an upper side of the electrode assembly in a thickness direction and a second sheet disposed at a lower side of the electrode assembly along the thickness direction, an accommodating portion at least partially surrounding the electrode assembly and formed by the first and second sheets, a sealing portion, formed by the first and second sheets connected to an edge of the accommodating portion and bent to face a side surface of the accommodating portion, the sealing portion comprising a vent layer provided in the sealing portion, and a cutout portion disposed at one end portion of the sealing portion, wherein the vent layer is disposed on a bonding surface between the first sheet and the second sheet and contacts a corner of the accommodating portion and the cutout portion.

Abstract: A negative electrode for a rechargeable lithium battery includes a current collector, a negative electrode active material layer on the current collector, and an organic-inorganic composite layer on the negative electrode active material layer and integrated with the negative electrode active material layer. The negative electrode active material layer includes a negative electrode active material and a first binder, the organic-inorganic composite layer includes a second binder, and the first binder and the second binder include a copolymer including a structural unit derived from a (meth)acrylonitrile monomer.

Abstract: A compound for an organic optoelectronic device, a composition for an organic optoelectronic device including the same, an organic optoelectronic device, and a display device, the compound being represented by a combination of Chemical Formula 1 and Chemical Formula 2:

Abstract: Provided is an electrolyte solution for a lithium secondary battery, the electrolyte solution comprising a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a compound represented by Chemical Formula 1. The contents of Chemical Formula 1 are the same as described in the specification.

Abstract: A battery pack includes at least one battery cell, a circuit board electrically connected to the at least one battery cell, and a conductive block electrically connecting the at least one battery cell and the circuit board to each other, the conductive block having a first surface, the first surface including a first metal and a second metal different from the first metal, and a second surface in contact with the first surface along an edge, the second metal including the second metal.

Abstract: A positive active material for a rechargeable lithium battery includes a lithium nickel-based metal composite oxide, wherein the positive active material includes secondary particles in which a plurality of primary particles are aggregated, a first boron coating portion present on the outer surfaces of the secondary particles, and a second boron coating portion present on surfaces of the primary particles inside the secondary particles, and a weight of the first boron coating portion is greater than a weight of the second boron coating portion.

Abstract: Disclosed are a finishing tape which is capable of reducing flow of an electrode assembly in a casing and a secondary battery including the same. As an example, disclosed is a finishing tape comprising: a first layer formed of a resin and forming a substrate; and a second layer formed on at least one side of the first layer and including a microsphere structure.

Abstract: Compounds for use in cathodes for Li-ion batteries include Li2Mn0.88A0.06B0.06O3, wherein A and B are dopants in one of the following combinations: A=Sr, B?Cr; A=Be, B?Cr; A=Ca, B?Cr; A=Zn, B?Cr; A=Co, B?Cr; A=Co, B?V; A=Fe, B?As; A=Y, B?Sb; A=Rh, B?V; A=Cr, B?V; A=Cr, B?Ta; or A=B?Ce. A high-throughput computational doping procedure for Li2Mn0.88A0.06B0.06O3 compounds includes satisfying the following screening criteria: (i) M/O PDOS ratio (where M involves all cation species other than Li) is larger than in pristine Li2MnO3; (ii) calculated voltage for Li extraction is close to or even higher than in pristine Li2MnO3; (iii) doped compound is thermodynamically stable, with Ehull equal or close to 0 eV/atom; (iv) dopants A and B dissolve more favorably in the Li2MnO3 phase over the LiMO2 phase, such that ?E=Ehull(Li2MnO3)?Ehull(LiMO2)<0.

Abstract: A separator for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. For example, in an embodiment, provided is a separator for a rechargeable lithium battery including a heat resistant layer and an adhesive layer which are sequentially formed on at least one surface of a substrate, wherein the heat resistant layer includes a ceramic, the adhesive layer includes an adhesive binder and an organic filler, and the adhesive binder includes a polymer having an interpenetrating polymer network (IPN) structure.

Abstract: The present disclosure relates to an ion-conductive polymer, an electrode including the same, and a lithium secondary battery including the electrode. The ion-conductive polymer includes a first monomer represented by Formula 1 below. In Formula 1, A, L1 to L2, L11, a1 to a2, a11, R1 to R3, and n1 to n2 are as defined in the detailed description.

Abstract: Provided is an automotive lithium-ion battery. The automotive lithium-ion battery includes a battery including a plurality of lithium-ion battery cells connected in series between first and second battery terminals, a metal-oxide-semiconductor field-effect transistor (MOSFET) switch connected between the battery and a pack terminal, a start detection circuit configured to receive a start signal and output a start detection signal for a set period of time in response to the start signal, a voltage comparison circuit configured to output a voltage comparison signal by comparing a battery voltage of the battery with a reference voltage, and a switch control circuit configured to output a switch control signal for controlling the MOSFET switch based on the start detection signal and the voltage comparison signal.

Abstract: A battery module includes a cell stack in which a plurality of unit cells including terminal parts are aligned in a first direction and an insulating member surrounds the plurality of unit cells; and a module housing in which a plurality of receiving parts, into each of which the cell stack is configured to be inserted, are provided and are aligned in a first direction and a second direction perpendicular to the first direction, wherein each of the plurality of receiving parts includes a fixing wall around the cell stack and having at least a portion which is in contact with the cell stack. The cell stacks adjacent to each other in the second direction are electrically connected to each other, and the cell stacks adjacent to each other in the first direction are electrically disconnected from each other, when not connected to an end module.

Abstract: A battery pack includes: battery cells, each including end portions in a height direction; a case accommodating the battery cells and a cooling fluid; and first and second holder plates coupled to the case to face each other along the case such that the end portions of the battery cells are insertable therethrough, an accommodation space being defined between the first and second holder plates, and heights of the case, the battery cells, and the first and second holder plates in the height direction satisfy the following condition: a height between the first and second holder plates<a height of the battery cells<a height of the case, and the case includes a hollow member which is open in the height direction.

Abstract: An energy storage module includes: a cover member accommodating a plurality of battery cells in an internal receiving space, each of the battery cells including a vent; a top plate coupled to a top of the cover member and including a duct corresponding to the vent of at least one of the battery cells; a top cover coupled to a top of the top plate and having an exhaust area corresponding to the duct, the exhaust area having a plurality of discharge openings, the top cover including a protrusion protruding from a bottom surface of the top cover, the protrusion extending around a periphery of the exhaust area and around a distal end of the duct; and an extinguisher sheet between the top cover and the top plate, the extinguisher sheet being configured to emit a fire extinguishing agent at a reference temperature.

Abstract: The present invention relates to a composition for an organic optoelectronic device, the composition comprising: a first host compound represented by Chemical Formula 1 below; and a second host compound represented by Chemical Formula 2 below, to an organic optoelectronic device using the composition and a display device. The details of Chemical Formulas 1 and 2 above are as defined in the specification.

Abstract: A steel sheet for a battery case includes about 0.02 wt % to about 0.08 wt % carbon (C); about 0.01 wt % to about 0.1 wt % niobium (Nb); and the balance of iron (Fe). Further aspects provide for a battery case manufactured from the steel sheet for a battery case and provided with an opening. Further aspects provide for a cylindrical secondary battery comprising a cylindrical case manufactured from the steel sheet for a battery case, a cap assembly sealing the cylindrical case, and an electrode assembly disposed inside the cylindrical case.

Abstract: A polarizing plate and a liquid crystal display including the same are provided. A polarizing plate includes a polarizing film and a contrast-improving optical film sequentially stacked in the stated order. The contrast-improving optical film includes a contrast-improving layer including a first resin layer and a second resin layer facing the first resin layer. The second resin layer includes a patterned portion having optical patterns and a flat section between the optical patterns. The second resin layer satisfies Equation 1, and the polarizing plate has a contrast ratio gain of about 1.00 or more, as represented by Equation 2.

Abstract: Provided are a condensed cyclic compound, an organic light-emitting device including the condensed cyclic compound, and an electronic device including the organic light-emitting device. The condensed cyclic compound is represented by Formula 1, wherein R12 is a group represented by Formula 2-1 and R13 is a group represented by Formula 2-2.

Abstract: In a battery cell stack spacer compensating a thickness deviation of a stack of battery cells, the battery cell stack spacer includes: a first carrier member providing planar support to a base side of a battery cell; a second carrier member providing planar support to a base side of a further battery cell; one or more tolerance compensation sheets sandwiched between the first carrier member and the second carrier member.

Abstract: Provided are a flexible window film and a display apparatus comprising same, the flexible window film having a substrate layer, a buffer layer and a hard coating layer that are sequentially layered, wherein the buffer layer comprises, in a thickness direction, a first area in which the amount of an amide group gradually increases from the interface between the hard coating layer and the buffer layer, and a second area in which the amount of an amide group gradually decreases from the interface between the substrate layer and the buffer layer.