Abstract: A cathode active material for an all-solid-state battery includes: active material particles; and a coating layer covering at least a portion of the surface of the active material particles, wherein the coating layer includes lithium (Li), niobium (Nb), and at least one element selected from the group consisting of vanadium (V), zirconium (Zr) and combinations thereof.

Abstract: Disclosed are a cathode for an all-solid-state battery including a composite-coated or double-coated cathode active material and a method of manufacturing the same.

Abstract: Disclosed are an anode active material for an all-solid-state battery in which a lithophilic material is deposited inside and on particles.

Abstract: Disclosed are an anode active material for an all-solid-state battery in which a lithophilic material is deposited in and on particles.

Abstract: Disclosed are an anode active material for an all-solid-state battery in which a lithiophilic material is deposited in and on particles.

Abstract: Disclosed are an anode active material for an all-solid-state battery in which a lithiophilic material is deposited inside and on particles.

Abstract: The present disclosure relates to an anode active material for an all-solid-state battery. The anode active material includes a particle and a coating part including a lithiophilic material deposited on the surface of the particle, and may further include a filler part deposited in the particle and including a material alloyable with lithium.

Abstract: Disclosed are a sulfide-based solid electrolyte including boron and having a face-centered cubic crystalline phase and a method of manufacturing the same.

Abstract: The present disclosure relates to a method of producing a solid electrolyte with a uniform particle size distribution and a spherical shape. The method includes preparing a raw material comprising one or more of a lithium (Li) element, a phosphorus (P) element, or a sulfur(S) element, preparing a starting material comprising the raw material and a solvent, obtaining an intermediate in powder form by spray drying the starting material, and obtaining a sulfide-based solid electrolyte by heat treating the intermediate.

Abstract: The present disclosure relates to a method for producing a cathode material and a cathode including a cathode material produced thereby. More specifically, the present disclosure provides a production method which improves process efficiency while improving cathode performance in consideration of the practical use of an all-solid-state battery in the production of a cathode for the all-solid-state battery.

Abstract: An anodeless all-solid-state battery includes an anode current collector, a composite structure layer positioned on the anode current collector, a solid electrolyte positioned on the composite structure layer, and a cathode positioned on the solid electrolyte, in which the composite structure layer includes a carbon layer including a carbon material, and a metal deposition layer positioned on the carbon layer and including lithiophilic metal particles.

Abstract: A current collector for an anode-free all-solid-state battery is capable of effectively increasing a physical contact area between an electrolyte and a current collector and effectively reducing interfacial voids between the electrolyte and the current collector. In addition, an anode-free all-solid-state battery capable of stably increasing cycle life without overvoltage is provided.

Abstract: An embodiment all-solid-state battery includes an anode current collector, a buffer layer disposed on the anode current collector, a solid electrolyte layer disposed on the buffer layer and including a solid electrolyte, a cathode active material layer disposed on the solid electrolyte layer, and a cathode current collector disposed on the cathode active material layer. The buffer layer includes a first layer disposed on the anode current collector and including an electrically conductive material, and a second layer disposed on the first layer and including a metal capable of alloying with lithium.

Abstract: Disclosed is a method of producing lithium sulfide (Li2S) without using hydrogen sulfide (H2S) gas. Particularly, the method of producing lithium sulfide (Li2S) includes preparing a starting material including a metal oxide by subjecting a mixed powder including an inorganic compound containing lithium and oxygen, a metal reducing agent, and sulfur (S) to synthesis reaction using mechanical force, preparing a mixed solution by mixing the starting material and a solvent, and obtaining a lithium sulfide (Li2S) powder by removing the metal oxide from the mixed solution and then performing drying.

Abstract: An embodiment composition for solid electrolyte membranes of all-solid-state batteries includes a sulfide-based solid electrolyte and a cross-linking agent including two or more acrylate functionalities. An embodiment method of manufacturing a solid electrolyte membrane for an all-solid-state battery includes forming a composition including a sulfide-based solid electrolyte and a cross-linking agent including two or more acrylate functionalities and cross-linking the composition.

Abstract: An anodeless all-solid-state battery includes an anode current collector, a composite structure layer positioned on the anode current collector, a solid electrolyte positioned on the composite structure layer, and a cathode positioned on the solid electrolyte, in which the composite structure layer includes a carbon layer including a carbon material, and a metal deposition layer positioned on the carbon layer and including lithiophilic metal particles.

Abstract: The present disclosure relates to a cathode active material for an all-solid-state battery with a controlled particle size and a method for preparing the same. In particular, the cathode active material includes lithium and a transition metal, wherein the cathode active material has a single peak in the range of 1 ?m to 10 ?m as a result of particle size distribution (PSD) analysis.

Abstract: Disclosed are a solid electrolyte and method of manufacturing the same. The solid electrolyte may include a core including a first electrolyte represented by Chemical Formula 1, and a shell including a second electrolyte represented by Chemical Formula 2, and disposed on a surface of the core. LiaPSbX1c??[Chemical Formula 1] Here, a satisfies an equation 4?a?7, b satisfies an equation 3?b?7, c satisfies an equation 0?c?2, and X1 includes Br or I. LidPSeX2f??[Chemical Formula 2] Here, d satisfies an equation 4?d?7, e satisfies an equation 3?e?7, f satisfies an equation 0?f?2, X2 includes Cl or Br, and an ionic radius of X1 is greater than an ionic radius of X2.

Abstract: An apparatus for manufacturing an all-solid-state battery includes: a mold unit which includes a first hole extending vertically so as to have a shape and a width identical with a shape and a width of the all-solid-state battery, and a second hole extending horizontally so as to horizontally communicate with the first hole; a first pressing unit which includes a first protrusion member corresponding to the first hole, which is coupled with an upper part of the mold unit, and which presses downwards raw materials of the all-solid-state battery filling the first hole, and a second pressing unit which includes a second protrusion member corresponding to the first hole, which is coupled with a lower part of the mold unit, and which presses upwards the raw materials of the all-solid-state battery filling the first hole.

Abstract: A flexible self-supporting solid electrolyte membrane, an all-solid-state battery including the membrane, and a manufacturing method thereof are disclosed. The solid electrolyte membrane may include: a substrate including pores therein; and a solid electrolyte layer disposed on at least one surface of the substrate and including a solid electrolyte and a cured compound. At least a portion of the solid electrolyte layer may penetrate into the pores of the substrate to form a conduction path of lithium ions in a thickness direction of the substrate.