Abstract: A solid electrolyte, including sulfide-based solid electrolyte particles and a coating layer disposed on the surface of the sulfide-based solid electrolyte particles and including a metal alkoxide.

Abstract: A solid electrolyte, including a sulfide solid electrolyte particle and lithium-metal-phosphate on the surface of the sulfide solid electrolyte particles wherein in an X-ray diffraction analysis of the solid electrolyte, a full width at half maximum (FWHM) of a main peak is less than or equal to about 0.160.

Abstract: An embodiment solid electrolyte includes a first compound and a second compound. The first compound is represented by a first chemical formula Li7-aPS6-a(X11-bX2b)a, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, and wherein 0<a?2 and 0<b<1, and the second compound is represented by a second chemical formula Li7-cP1-2dMdS6-c-3d(X11-eX2e)c, wherein X1 and X2 are the same or different and each represents F, Cl, Br, or I, wherein M represents Ge, Si, Sn, or any combination thereof, and wherein 0<c?2, 0<d<0.5, and 0<e<1.

Abstract: A secondary battery activation device capable of effectively removing gas generated inside a secondary battery cell during an activation process of a secondary battery and a secondary battery manufacturing method using the same are provided. The secondary battery activation device includes a first pressing unit comprising a first pressing plate and a plurality of first elastic pressing members located on a first surface of the first pressing plate, and a second pressing unit comprising a second pressing plate and a plurality of second elastic pressing members located on a second surface of the second pressing plate, the second surface of the second pressing plate being arranged to face the first surface of the first pressing plate.

Abstract: A solid electrolyte includes sulfide-based solid electrolyte particles and lithium-metal-oxide on the surface of the particles, wherein in an X-ray diffraction analysis of the solid electrolyte, a full width at half maximum of a main peak is less than or equal to about 0.160.

Abstract: The present invention relates to a rechargeable lithium battery, the battery comprising: a positive electrode; a negative electrode; and an electrolyte comprising a smoothing additive having a reduction potential of at least ?0.5 V, but less than 0.9 V.

Abstract: The present invention relates to a negative electrode for a lithium secondary battery, and a lithium secondary battery including the same, wherein the negative electrode comprises a current collector, and a coating layer which is located on the current collector and comprises polyvinylidene fluoride polymer and LiF.

Abstract: A composite cathode active material for an all-solid-state battery including a sulfide solid electrolyte, a preparation method thereof, a cathode layer for an all-solid-state battery, and an all-solid-state battery including the cathode layer, the composite cathode active material including a secondary particle including a plurality of primary particles; and a buffer layer on a surface of the secondary particle, wherein the secondary particle includes a nickel lithium transition metal oxide represented by Formula 1 (LiaNi1-bMbO2), the buffer layer includes a first buffer layer adjacent to a surface of the secondary particle and including an oxide represented by Formula 2 (LixAyOz); and a second buffer layer including an oxide represented by Formula 3 (LixEyOz).

Abstract: A composite cathode active material, a preparation method thereof, a cathode layer for an all-solid-state battery, and an all-solid-state battery including the cathode layer, the composite cathode active material for the all-solid-state battery including a secondary particle including a plurality of primary particles; and a buffer layer on a surface of the secondary particle, wherein the secondary particle includes a nickel lithium transition metal oxide represented by Formula 1, and the buffer layer includes a metal oxide represented by Formula 2, LiaNi1-bMbO2??Formula 1 LixAy-1Ey2Oz??Formula 2

Abstract: A catalyst slurry including a catalyst material, a polymer binder, a plurality of inorganic particles, wherein each particle includes an ionic group, a hydrophilic oligomer, and a solvent.

Abstract: A catalyst slurry for a fuel cell, an electrode manufactured using the catalyst slurry, a membrane-electrode assembly including the electrode, a fuel cell including the membrane-electrode assembly, and a method of manufacturing the electrode are provided. The catalyst slurry includes a catalyst material, an acid component, a binder, and a solvent component having a viscosity of at least about 20 cps at about 20° C.

Abstract: A membrane-electrode assembly and a fuel cell including a cathode; an anode; and an electrolyte membrane disposed between the cathode and the anode, wherein the anode has a specific pore volume greater than a specific pore volume of the cathode, and the anode has a specific pore volume of about 0.05 milliliters per gram to about 0.09 milliliters per gram.

Abstract: Disclosed herein is a method of manufacturing a printed circuit board, the method including: (a) performing a hole processing process on one surface of a core layer to process a first via hole having a predetermined height hl; (b) performing a plating process on one surface of the core layer to form a first via electrode in the first via hole and form a first metal layer on one surface of the core layer; (c) performing a hole processing process on the other surface of the core layer to process a second via hole having a predetermined height h2 exposing a lower surface of the first via electrode to the outside; and (d) performing a plating process on the other surface of the core layer to form a second via electrode in the second via hole and form a second metal layer on the other surface of the core layer.

Abstract: A fuel cell electrode including a catalyst layer including: a catalyst; and a conductor storage material having pores with an average diameter of about 5 nm to about 1000 nm.

Abstract: A membrane electrode assembly for a fuel cell and a fuel cell employing the same. The membrane electrode assembly includes: a cathode; an anode; and a polymer electrolyte membrane that is interposed between the cathode and the anode, and comprises a proton conductive polymer that is doped with acid to a doping level of less than 200 mole %. The membrane electrode assembly for the fuel cell exhibits an improved efficiency of performance when acid is doped in the polymer electrolyte membrane at a doping level of less than 200 mole. In addition, the performance of the fuel cell can be optimized by separately adjusting the amount of acid doped in the cathode and anode. The fuel cell employing the membrane electrode assembly can be operated at a high temperature in a dry environment and exhibits an improved power generating performance.

Abstract: An electrode for a fuel cell including a gas diffusion layer, and a catalyst layer bound to at least one surface of the gas diffusion layer and including a catalyst and a binder; and a fuel cell including the electrode.

Abstract: A solid proton conductor for a fuel cell and a fuel cell employing the solid proton conductor, the solid proton conductor including a sulfonated polymer, and a hydrophilic polymer having an acid group, constituting a polymer solvent, providing a proton mobile path.

Abstract: An oxygen reduction electrode and a fuel cell including the same are provided. A catalyst layer of the oxygen reduction electrode includes a metalloporphyrin derivative as an additive. Accordingly, the oxygen reduction electrode can increase oxygen concentration and can easily form a triple phase boundary by reducing a flooding phenomenon caused by an electrolyte. A fuel cell including the same is also provided.

Abstract: A method for preparing a metal catalyst includes a proton conductive material coating layer formed on the surface of a conductive material. Also, an electrode may be prepared using the metal catalyst. The method for preparing the metal catalyst comprises mixing the conductive catalyst material, the proton conductive material, and a first solvent, casting the mixture onto a supporting layer and drying the mixture to form a conductive catalyst containing film. The method further comprises separating the conductive catalyst containing film from the supporting layer and pulverizing the conductive catalyst containing film to obtain the metal catalyst. The method for preparing the electrode comprises mixing the metal catalyst with a hydrophobic binder and a second solvent, coating the mixture on an electrode support, and drying it.

Abstract: Disclosed herein is an apparatus for coating a substrate, including a horizontal coating unit having an inlet and an outlet through which a substrate is moving in and out horizontally, and coating surfaces of the substrate with coating liquid by horizontal dipping method to form a protective layer; and a squeegee unit arranged outside the outlet of the horizontal coating unit and being in close contact with the protective layer of the substrate moving out of the horizontal coating unit through the outlet to uniformize coating thickness of the protective layer. According to the present invention, coating thickness of a protective layer coated on a substrate is formed uniformly, and in particular coating quality of edges of the substrate is improved. Therefore, it is possible to minimize foreign substances introduced during manufacturing process of the substrate, thereby reducing defective rate due to foreign substances and improving productivity.