Abstract: A method for manufacturing a battery cell for evaluating a lithium precipitation behavior includes: an electrode assembly preparation step of preparing an electrode assembly to which an overhang region, where a positive electrode protrudes from a negative electrode, is introduced; a battery cell preparation step of preparing a battery cell by accommodating the electrode assembly in a first pouch, injecting an electrolyte solution thereto, and sealing the first pouch; a secondary sealing step of accommodating the battery cell in a second pouch and secondary-sealing the second pouch; a second pouch removing step of performing formation for the secondary-sealed battery cell and removing the second pouch; a gas pocket unit removing step of degassing and re-sealing the battery cell, from which the second pouch has been removed, and removing a gas pocket unit of the first pouch; and a completion step of accommodating the battery cell.

Abstract: An apparatus for manufacturing an organic material includes an outer tube including an internal accommodating space, and at least one loading inner tube and at least one collecting inner tube disposed in the accommodation space, the loading inner tube including a mesh boat disposed in a first direction in which the loading inner tube extends.

Abstract: A display device including: a power supply configured to supply a first power, a second power, and a third power to a first power line, a second power line, and a third power line, respectively, wherein each of the first power, the second power and the third power varies in voltage level during one frame period; and pixels connected to at least one of scan lines and data lines, and connected to a common control line, the first power line, the second power line, and the third power line, wherein the pixels simultaneously emit light when the second power is changed to a low level, and a number of times the second power is changed to the low level during the one frame period changes in response to an image refresh rate.

Abstract: The present disclosure relates to a solid electrolyte membrane for an all-solid-state battery and a battery comprising the same. In the present disclosure, the battery may comprise lithium metal as a negative electrode active material. The solid electrolyte membrane for an all-solid-state battery according to the present disclosure comprises a guide layer comprising metal particles to guide the horizontal growth of lithium dendrites, thereby delaying an electrical short caused by dendrite growth. Additionally, the guide layer is formed by polymer self-assembly, and thus the metal particles may be uniformly distributed in a very regular pattern within the guide layer.

Abstract: A bipolar all-solid-state battery including a porous support layer is provided. The bipolar all-solid-state battery comprises (a) two or more unit cells each including a positive electrode, a solid electrolyte, and a negative electrode being connected to each other in series and a first porous support layer provided at an interface therebetween; or (b) two or more unit cells each including a positive electrode, a solid electrolyte, and a second porous support layer being connected to each other in series.

Abstract: Proposed is an interbody fusion device including a circular opening into which a fixator can be inserted, an elastic band configured to surround at least a portion of the circular opening, and comprising a first distal end including a fixing part protruding from the circular opening to prevent separation of the fixator, and a connection part connected to a second distal end of the elastic band, the elastic band is implemented with the same material as the interbody fusion device, and the elastic band and the interbody fusion device are integral.

Abstract: A lithium secondary battery including a solid-liquid hybrid electrolyte membrane provided with a nonwoven web substrate having a microporous structure formed by a microstructure of polymer fibrils and solid polymer particles are dispersed in the microporous structure or a liquid electrolyte is incorporated into the microporous structure, and a porous layer in which the solid polymer particles are packed and are in contact with one another, a pore structure is formed between the solid polymer particles, and the liquid electrolyte surrounds portions where the solid polymer particles are in contact with one another or surfaces of the solid polymer particles, and a method for manufacturing the lithium secondary battery.

Abstract: A method of detecting a lamination defect of an electrode assembly in the initial stage, including: forming an insulating member having a predetermined width and a predetermined height in an overhang region of one end or two ends of one surface of a negative electrode; manufacturing an electrode assembly by sequentially laminating a separator and a positive electrode on one surface of the negative electrode; and determining whether there is a lamination defect in the electrode assembly by measuring a thickness of the electrode assembly. Also provided are an electrode assembly including an insulating member, and a battery cell including the electrode assembly.

Abstract: Provided is a manufacturing method of an electrode, wherein productivity is improved by preventing a short circuit forming between a positive electrode and negative electrode even when an overhang occurs during manufacture of an electrode assembly. The present technology includes a step of forming an electrode active material layer and a resistance layer, by applying a resistance layer composition including inorganic additives and an electrode slurry, including an electrode active material on a current collector; a step of drying the current collector in which the electrode active material layer and resistance layer are formed; and a step of forming the electrode in which an electrode tab is formed at one end by notching the dried current collector and the method of forming the electrode active material layer and resistance layer is performed by one slot die in which two discharge ports are formed.

Abstract: The present disclosure relates to a positive electrode for a solid electrolyte battery which includes: a positive electrode current collector; a first positive electrode active material layer formed on at least one surface of the positive electrode current collector and including a first positive electrode active material, a first solid electrolyte and a first electrolyte salt; and a second positive electrode active material layer formed on the first positive electrode active material layer and including a second positive electrode active material, a second solid electrolyte, a second electrolyte salt and a plasticizer, wherein the plasticizer has a melting point of 30-130° C. The present disclosure also relates to a solid electrolyte battery including the positive electrode.

Abstract: Disclosed is a method of preparing a negative electrode active material which includes (a) dispersing an active material core in a solution containing a surfactant to coat the surfactant on the active material core, (b) adding and dispersing a first precursor, which is bondable with the surfactant by electrostatic attraction, in the solution, (c) adding and dispersing a second precursor, which is bondable with the first precursor by electrostatic attraction, in the solution, (d) preparing a lithium compound precursor by a hydrothermal reaction of the first precursor and the second precursor in the solution, and (e) performing a heat treatment on the lithium compound precursor to thermally decompose the surfactant, and forming a protective layer containing a lithium compound on the active material core, wherein one of the first precursor and the second precursor is at least one selected from lithium hydroxide, lithium oxide, lithium nitrate or lithium sulfate.

Abstract: Disclosed is an all-solid-state battery comprising an electrode assembly and a solid electrolyte, wherein the electrode assembly comprises a structure in which plate-shaped electrodes are stacked; and the electrodes include a relatively high heat-generating first electrode and a relatively low heat-generating second electrode, wherein the first electrode is disposed in a center of the electrode assembly, the all-solid-state battery with improved performance by increasing the temperature of the battery without adding additional members.

Abstract: Disclosed is a method of manufacturing a negative electrode for all-solid-state batteries, the method including (a) preparing a powder mixture including a negative electrode active material, a solid electrolyte, and a conductive agent, (b) introducing the powder mixture into a reactor, (c) introducing an electrolytic solution into the reactor, and (d) forming a solid electrolyte interface (SEI) film while rotating the reactor, wherein the inner surface of the reactor is treated with lithium metal.

Abstract: Provided is a solid electrolyte membrane for a solid-state battery, including at least two solid electrolyte layers and at least one volume-swelling layer, wherein the volume-swelling layer is disposed between the solid electrolyte layers. The solid electrolyte membrane includes (a) an ion conductive solid electrolyte material, and the volume-swelling layer includes (b) inorganic particles, wherein the inorganic particles form an alloy with lithium and include a metal, metal oxide or both. Thus, it is possible to provide a solid electrolyte membrane for a solid-state battery fundamentally prevented from a short-circuit by inhibiting growth of lithium dendrite.

Abstract: A solid electrolyte composite according to the present disclosure comprises a solid electrolyte material and a passivation film covering the surface of the solid electrolyte material. For example, the composite has a core-shell structure comprising a particulate solid electrolyte material and a passivation film covering the surface of the solid electrolyte.

Abstract: The present disclosure relates to a solid electrolyte battery including a negative electrode including: a negative electrode current collector; a first negative electrode active material layer formed on at least one surface of the negative electrode current collector and including a first negative electrode active material, a first solid electrolyte and a first electrolyte salt; and a second negative electrode active material layer formed on the first negative electrode active material layer and including a second negative electrode active material, a second solid electrolyte, a second electrolyte salt and a plasticizer having a melting point of 30-130° C., the solid electrolyte battery is activated at a temperature between the melting point of the plasticizer and 130° C., and a solid electrolyte interface (SEI) layer is formed on the surface of the second negative electrode active material.

Abstract: The present disclosure relates to a solid electrolyte membrane for suppressing the growth of lithium dendrites and an all-solid-state battery comprising the same, the solid electrolyte membrane comprising a solid electrolyte material and metal particles, wherein the metal particles form an alloy with lithium.

Abstract: An all-solid-state secondary battery according to the present invention includes a positive electrode, a negative electrode, and a solid electrolyte formed between the positive electrode and the negative electrode, wherein the negative electrode is formed through a pre-lithiation process in which a powder mixture configured to form the negative electrode contacts lithium metal before battery assembly. Irreversible capacity is removed through the pre-lithiation process, whereby initial efficiency of the battery is improved, and the process is simplified, whereby mass production is possible and cost is reduced.

Abstract: The present invention relates to a method of manufacturing an electrode of an all-in-one battery comprising the steps of mixing an electrode active material, a solid electrolyte and a first binder with a first solvent to prepare a primary slurry; drying the primary slurry to prepare a mixture powder; mixing the mixture powder, a conductive agent, and a second binder with a second solvent to prepare a secondary slurry; and coating the secondary slurry on a current collector.

Abstract: The present disclosure relates to a solid electrolyte membrane for an all-solid-state battery and a battery comprising the same. In the present disclosure, the battery may comprise lithium metal as a negative electrode active material. The solid electrolyte membrane for an all-solid-state battery according to the present disclosure comprises a guide layer comprising metal particles to guide the horizontal growth of lithium dendrites, thereby delaying an electrical short caused by dendrite growth. Additionally, the guide layer is formed by polymer self-assembly, and thus the metal particles may be uniformly distributed in a very regular pattern within the guide layer.