Abstract: The present disclosure relates to a negative electrode active material, a negative electrode including the same, a secondary battery including the negative electrode, and a method for manufacturing a negative electrode active material. The negative electrode active material includes a silicon-based particle including SiOx (0<x<2) and a Li compound, a carbon layer provided on at least a portion of a surface of the silicon-based particle, and a surface layer provided on at least a portion of a surface of the carbon layer and comprising Li, Al and P, wherein an oxide comprising one or more selected from the group consisting of Zr, B, Al, Zn, W and Ti is provided at an interface between the silicon-based particle and the carbon layer.

Abstract: A display device includes a substrate including a display area and a peripheral area disposed outside the display area, a light-emitting element disposed on the display area of the substrate, and an encapsulation member disposed on the light-emitting element and including at least one inorganic encapsulation layer and at least one organic encapsulation layer. An organic encapsulation layer of the at least one organic encapsulation layer includes surface-enhanced Raman scattering (SERS) active nanoparticles.

Abstract: Disclosed are a negative electrode active material, a negative electrode including the same, a secondary battery including the same and a method for preparing the negative electrode active material. The negative electrode active material can include silicon-based particles including SiOx, wherein 0<x<2, and a Li compound, wherein the Li compound includes a crystalline lithium silicate including Li2SiO3, and optionally also including at least selected from the group consisting crystalline Li4SiO4 and crystalline Li2Si2O5, a content of the crystalline Li2SiO3 is higher than the sum of a content of the crystalline Li2Si2O5 and a content of the crystalline Li4SiO4, the content of the crystalline Li2SiO3 is included in an amount of 60 parts by weight or more based on 100 parts by weight of crystalline lithium silicate, and a total content of a crystalline phase present in the silicon-based particles is higher than a total content of an amorphous phase.

Abstract: A display device includes a substrate, a light emitting element disposed on the substrate, a capping layer covering the light emitting element, and an encapsulation layer disposed on the capping layer. The capping layer includes a first inorganic layer, a first flexible layer disposed on the first inorganic layer, and a second inorganic layer disposed on the first flexible layer. The first flexible layer includes silicon and carbon. A thickness of the first flexible layer is about 80% or more of a thickness of the capping layer.

Abstract: A method of manufacturing a display device includes forming a light emitting structure on a substrate and forming a thin film encapsulation layer on the light emitting structure by chemical vapor deposition equipment. The forming the thin film encapsulation layer includes forming a first inorganic layer and performing a first plasma treatment on a first portion of the first inorganic layer which is opposite to a second portion of the first inorganic layer facing the light emitting structure. A first raw material in the forming the first inorganic layer includes hydrogen. A second raw material in the performing the first plasma treatment exclusively consists of hydrogen.

Abstract: A display device includes a substrate, a light emitting element disposed on the substrate, a capping layer covering the light emitting element, and an encapsulation layer disposed on the capping layer. The capping layer includes a first inorganic layer, a first flexible layer disposed on the first inorganic layer, and a second inorganic layer disposed on the first flexible layer. The first flexible layer includes silicon and carbon. A thickness of the first flexible layer is about 80% or more of a thickness of the capping layer.

Abstract: A negative electrode active material including silicon-containing composite particles including SiOx (0<x<2) and a Li compound; a carbon coating layer; and SiOy (1<y?2), in which the carbon coating layer is present on at least a part of the surface of the silicon-containing composite particles. The SiOy (1<y?2) is present in the form of a coating layer at least a part of the surface of the silicon-containing composite particles or coating at least a part of the surface of the carbon coating layer. A negative electrode including the negative electrode active material and a secondary battery including the negative electrode are also disclosed.

Abstract: Provided are a display device and a method for manufacturing the same. The display device of an embodiment may include a base layer, a light emitting element, and an encapsulation layer. The encapsulation layer included in the display device may include a first inorganic layer, a second inorganic layer, and an organic layer, and the organic layer may include a near-infrared absorbing dye to contribute to reducing a dead space, and accordingly, the display device may exhibit improved display quality.

Abstract: A negative electrode active material, a negative electrode slurry including the same, a negative electrode including the slurry, a secondary battery including the negative electrode, and a method of manufacturing a negative electrode active material are disclosed. The negative electrode active material includes silicon-containing particles comprising silicon and a Li compound; and a carbon layer on at least a portion of a surface of the silicon-containing particles. Upon X-ray diffraction analysis, a ratio (p2/p1) of a peak intensity (p2) appearing at 18.8° to 19.0° to a peak intensity (p1) appearing at 24.7° to 24.9° is 0.7 or greater. A pH is 7 to 10 when 1 g of the negative electrode active material is dispersed in 100 mL of water at 25° C.

Abstract: A method of manufacturing a display device includes forming a light emitting structure on a substrate and forming a thin film encapsulation layer on the light emitting structure by chemical vapor deposition equipment. The forming the thin film encapsulation layer includes forming a first inorganic layer and performing a first plasma treatment on a first portion of the first inorganic layer which is opposite to a second portion of the first inorganic layer facing the light emitting structure. A first raw material in the forming the first inorganic layer includes hydrogen. A second raw material in the performing the first plasma treatment exclusively consists of hydrogen.

Abstract: A negative electrode, a method of manufacturing a negative electrode, a negative electrode slurry, and a secondary battery including the negative electrode are disclosed. The negative electrode includes a negative electrode current collector and a negative electrode active material layer on a surface of the negative electrode current collector. The negative electrode active material layer includes a silicon-containing active material. The silicon-containing active material comprises silicon-containing particles including SiOx, wherein 0<x<2, and Li. The negative electrode includes 0.05 part by weight or more and 1.5 parts by weight or less of one or more element selected from the group consisting of aluminum, boron, zinc and zirconium, based on 100 parts by weight of a total weight of the negative electrode active material layer. The negative electrode includes a structure where one or more element selected from the group consisting of aluminum, boron, zinc and zirconium are bound to oxygen.

Abstract: Provided is a display device, including a base layer, and a display element layer on the base layer, and having a light emitting element, the light emitting element includes a first electrode, a second electrode on the first electrode, and a plurality of organic layers between the first electrode and the second electrode, wherein the light emitting element emits light from the first electrode to the second electrode, and the second electrode includes a first layer on the plurality of organic layers, the first layer including silver (Ag) and/or magnesium (Mg), and a second layer on the first layer, the second layer including ytterbium (Yb). Accordingly, the display quality of the display device may be improved.

Abstract: A negative electrode active material including silicon-containing oxide particles, in which the silicon-containing oxide particles include silicon and a Li dopant and include a first covering layer and a second covering layer on the surface of the silicon-containing oxide particles. Each of the first covering layer and the second covering layer is independently a carbon layer. The negative electrode active material also includes an irreversible material formed by doping the silicon-containing oxide with Li absent between the first covering layer and the second covering layer, or each of LiOH and LizCO3 is present between the first covering layer and the second covering layer in an amount of less than 1 wt % based on 100 wt % of a total amount of the negative electrode active material.

Abstract: A negative electrode active material including silicon-containing oxide particles, in which the silicon-containing oxide particles include Si, Li and Mg is disclosed. An amount of Li is larger than a content of Mg, and an amount of Mg is more than 0 wt % and 0.5 wt % or less based on 100 wt % of the negative electrode active material. A negative electrode including the negative electrode active material, and a secondary battery including the negative electrode are also disclosed.

Abstract: A display device includes a lower substrate including a plurality of pixels and including a first area and a second area surrounding the first area on a plane, a first filler disposed on the lower substrate, overlapping the first area, and including a first catalyst, a second filler disposed on the lower substrate, overlapping the second area, disposed on a same layer as the first filler, and including a second catalyst, an upper substrate disposed on the first filler and the second filler, and a sealing member disposed between the lower substrate and the upper substrate.

Abstract: A manufacturing method of a negative electrode including steps of preparing a preliminary negative electrode slurry including a negative electrode active material and a conductive material; adding an acid to the preliminary negative electrode slurry and mixing to form a negative electrode slurry; applying the negative electrode slurry on at least one surface of a current collector and performing a first drying and rolling the slurry to form a negative electrode active material layer; and performing a second drying of the current collector on which the negative electrode active material layer is formed. The negative electrode active material includes silicon-containing particles including silicon and a Li compound. A pH of the negative electrode slurry at 25° C. is 10 or more and less than 12.5.

Abstract: A negative electrode active material, a negative electrode including the same, a secondary battery including the same and a method for preparing the negative electrode active material are disclosed. The negative electrode active material includes silicon-containing particles including SiOx, wherein 0<x<2, and Li and having a first carbon layer on at least a portion of a surface of the silicon-containing particles; and a second carbon layer on (a) at least a portion of the Si-containing particle, (b) at least a portion of the first carbon layer, or (c) at least a portion of the Si-containing particle and at least a portion of the first carbon layer. A ratio of D band peak intensity to G band peak intensity (D/G band ratio) is 1.0 or more during analysis by Raman spectroscopy.

Abstract: A negative electrode active material, a negative electrode including the same, a secondary battery including the same and a method for preparing the negative electrode active material are disclosed. A negative electrode active material including silicon-containing particles including SiOx, wherein 0<x<2, and Li and having a first carbon layer on at least a portion of a surface of the silicon-containing particles, a composite layer on at least a portion of a surface of the first carbon layer on a surface of the silicon-containing particle; and a second carbon layer on at least a portion of a surface of the composite layer. The negative electrode active material comprises Li, M, P and O elements. The M is Al, B or Zn. A ratio of D band peak intensity to G band peak intensity (D/G band ratio) is 1.0 or more determined by analysis by Raman spectroscopy.

Abstract: A display device includes a first substrate including a first region and a second region surrounding the first region in a plan view, a first filler disposed on the first substrate and overlapping the first region, a second filler disposed on the first substrate and overlapping the second region, and including a material different from the first filler, and a second substrate disposed on the first filler and the second filler.

Abstract: Provided is a display device including a base layer, a pixel defining film, a display element layer including a light-emitting element divided by a pixel defining film, an encapsulation substrate on the display element layer, and a filling layer between the display element layer and the encapsulation substrate and including a filler derived from a mixture having a first polymer compound containing a first monomer represented by Formula 1 below, a second polymer compound containing a second monomer represented by Formula 2 below, and a plurality of crosslinking compounds.