Abstract: It is related to a positive active material for all solid batteries, comprising: a positive active material with layered crystal structure, and wherein, a XRD spectrum of a grain of the positive active material has diffraction peaks corresponding to the (003) plane and the (110) plane, and a ratio of the full width at half maximum (FWHM) of the diffraction peak corresponding to the (110) plane to the full width at half maximum (FWHM) of the diffraction peak corresponding to the (003) plane is 1.30 to 1.60.

Abstract: A positive electrode active material for an all-solid-state battery of the present exemplary embodiments may include: a core including a lithium nickel-based oxide; a first coating layer containing cobalt which is placed on a surface of the core; and a second coating layer containing a lithium transition metal oxide which is placed on a surface of the first coating layer.

Abstract: One embodiment of the present invention relates to a lithium metal anode. Wherein the lithium metal anode comprises a current collector and a lithium metal thin film layer disposed on at least one surface of the current collector and having a thickness in a range of 0.1 to 200 ?m and a coating layer disposed on a surface of the lithium metal thin film layer, wherein, the coating layer comprising a Li—N—C—H—O based ionic compound.

Abstract: A vertical type apparatus for firing a cathode material of a secondary battery is provided. The vertical type apparatus for firing the cathode material according to the present disclosure includes a plurality of saggers, each having an open upper portion, provided with a through-slit for gas flow in a lower surface thereof, and loaded with the cathode material therein, and a plurality of unit firing furnaces, each having an open upper portion, each plurally stacked in the vertical direction, each receiving the respective sagger.

Abstract: It relates to a solid electrolyte and an all-solid-state battery containing it, which contains a sulfur compound represented by Chemical Formula 1 below and B in an amount of 10 ppm to 100,000 ppm.

Abstract: The present invention relates to an all-solid-state battery and a manufacturing method thereof. An all-solid-state battery according to an embodiment of the present invention includes: a positive electrode positioned on a positive electrode current collector; a negative electrode positioned on a negative electrode current collector; and a solid-state electrolyte layer positioned between the positive electrode and the negative electrode, wherein the positive electrode includes a positive electrode active material and a solid-state electrolyte, and concentrations of the positive electrode active material and the solid-state electrolyte have a stepwise concentration gradient in which the concentration of the positive electrode active material to the solid-state electrolyte decreases from a side closer to the positive electrode current collector toward a side closer to the solid-state electrolyte layer.

Abstract: One embodiment of the present invention relates to a lithium metal anode. Wherein the lithium metal anode comprises a current collector and a lithium metal thin film layer disposed on at least one surface of the current collector and having a thickness in a range of 0.1 to 200 ?m and a coating layer disposed on a surface of the lithium metal thin film layer, wherein, the coating layer comprising a Li—N—C—H—O based ionic compound.

Abstract: The present disclosure relates to a gasket for an MCFC, the gasket being in direct contact with a molten carbonate electrolyte and configuring a wet seal part of a stack in a manifold sealing part of an external manifold-type MCFC stack, wherein the gasket has a structure in which two or more partial gaskets separated from each other in a stacking direction of the stack are connected to each other and a blocking layer physically blocking migration of the molten carbonate electrolyte is formed between the partial gaskets, and the blocking layer is a thick film layer or a green sheet layer formed of the same oxide powder particles as those of the partial gaskets and is manufactured by co-sintering a partial oxide felt assembly and the blocking layer in a process of sintering the gasket.