Abstract: A method for producing a positive electrode active material includes: (1) mixing an activation agent containing at least one type of compound selected from the group consisting of a potassium compound and a sodium compound with an electrode material mixture containing a positive electrode active material, a binder, and an electrolyte, from which at least part of the electrolyte is removed by contact with an electrolyte cleaning solvent; (2) heating the mixture to a temperature at or higher the melting start temperature of the activation agent to activate the positive electrode active material; and (3) contacting the mixture with a water-containing liquid to obtain a slurry containing a solid component and a liquid component, separating the slurry into a solid and a liquid component, wherein the total potassium and sodium content in the liquid component is 0.090 to 2.0 mass % and in the solid component is 1.2 mass % or less.

Abstract: A foreign element-containing vanadium sulfide contains, as constituent elements, vanadium, sulfur, and a foreign element, wherein the compositional ratio of the foreign element to the vanadium (M1/V) is in the range of 0.05 to 1.5 in terms of molar ratio; the compositional ratio of the sulfur to the vanadium (S/V) is in the range of 3.0 to 10.0 in terms of molar ratio; and the foreign element includes at least one member selected from the group consisting of Nb, Ti, Zr, Mo, Sc, and Y, or includes at least one member selected from the group consisting of Li, B, N, O, F, Mg, S, Cl, Ca, Br, Sr, Sc, I, Fe, Co, Ni, Zn, Y, Mo, Tc, and Cd. The foreign element-containing vanadium sulfide is an electrode active material for a lithium ion secondary battery that exhibits satisfactorily high initial capacity and that provides improved electrochemical performance or cycle performance.

Abstract: Provided are a lithium-doped silicon-based negative electrode active material, a method of producing the same, and a negative electrode and a lithium secondary battery including the same. According to an exemplary embodiment of the present invention, a method of producing a negative electrode active material for a secondary battery including: a) a metal doping process of mixing a silicon-based material and a metal precursor and performing a heat treatment to dope the silicon-based material with a metal; and b) an acid gas treatment process of treating the metal-doped silicon-based material in an acid gas atmosphere to remove residual metal may be provided.

Abstract: The present disclosure relates to a plurality of host materials comprising a first host material having a compound represented by formula 1, and a second host material having a compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds of the present disclosure as host materials, it is possible to provide an organic electroluminescent device having long lifetime properties while having an equivalent or improved level of power efficiency compared to conventional organic electroluminescent devices.

Abstract: The invention relates to an organic peroxide formulation comprising: —at least one organic peroxide having a one hour half-life temperature of from 90° C. to 130° C., and —at least one drying oil, wherein the weight ratio of the drying oil to the organic peroxide is lower than or equal to 0.60. The invention also relates to a composition comprising at least one polymer and such an organic peroxide formulation, to preparation methods thereof, and to a method for manufacturing an article using such a composition.

Abstract: In a composite positive electrode active material including a lithium metal oxide as a positive electrode active material and a covering layer covering at least part of a surface of the positive electrode active material, the covering layer contains an Li element, a B element, and an O element, a molar ratio Li/B of the Li element to the B element in the covering layer is 1.5 to 3.0, and a coverage rate of the covering layer covering the positive electrode active material is 80% or more.

Abstract: A positive electrode active material having a composition represented by LixNiaCobMncMdO2, wherein, when an inner region, which extends 70% of a diameter from a center of a particle of the positive electrode active material, in a TEM-EDX image of a cross-section of the particle is sectioned into square regions of 10 nm, a proportion of regions at which a concentration of an element represented by M is greater than or equal to 10 mass %, with respect to all regions, is greater than or equal to 1.0%, and in the composition, 0.1?x?1.5, 0.5?a?1.0, 0?b?0.3, 0?c?0.3, a+b+c=1.0, 0.0005?d?0.05, and M represents at least one element selected from the group consisting of Ta, Al, Ba, Pr, La, Y, Sr, Ce, Se, Hf, Rh and Zr.

Abstract: A modified silicon-carbon negative electrode material, a preparation method therefor, and an application thereof are disclosed. A method includes mixing a silicon-carbon negative electrode material with a lithium alkoxide solution to carry out a solvothermal reaction. The solid powder obtained after the solvothermal reaction is alcohol washed. The powder is dried to obtain the modified silicon-carbon negative electrode material. The lithium alkoxide solution is formed by mixing metallic lithium with an alcohol solvent.

Abstract: A positive electrode active material includes nickel contained as a transition metal in a ratio of 70 mol % or more of the total transition metal; and polycrystalline particles and monocrystalline particles, in which a B/A value calculated from a lithium hydroxide content A (mass %) of the polycrystalline particles and a lithium hydroxide content B (mass %) of the monocrystalline particles is 1.03 to 1.9.

Abstract: Methods for synthesizing crystalline Ni-rich cathode materials are disclosed. The Ni-rich cathode material may have a formula LiNiXMnyMzCo1-x-y-zO2, where M represents one or more dopant metals, x?0.6, 0.01?y<0.2, 0?z?0.05, and x+y+z?1.0. The methods are cost-effective, and include methods for solid-state, molten-salt, and flash-sintering syntheses.

Abstract: The present disclosure provides the methods for preparing nickel-rich hydroxide precursor material and nickel-rich oxide cathode material having a homogeneous structure with an element concentration-gradient distribution by utilizing a continuous Taylor-flow reactor, comprising: (1) preparing an aqueous solution A with metal ion raw materials dissolved therein, an aqueous solution B with a manganese source dissolved therein, an aqueous solution C with a precipitant dissolved therein, and an aqueous solution D with a chelating agent dissolved therein; feeding the aqueous solution A, the aqueous solution C and the aqueous solution D into the continuous Taylor-flow reactor to perform a first co-precipitation reaction; (2) feeding the aqueous solution B into the continuous Taylor-flow reactor to perform a second co-precipitation reaction; (3) washing the precipitate obtained from the second co-precipitation reaction and putting the precipitate into an oven to dry the precipitate to fabricate the nickel-rich hydro

Abstract: Provided is a thermosetting conductive resin composition including: a conductive powder including a base metal; a thermosetting silicone resin having hydroxyl groups; and at least one of an amine-based additive and an acid-based additive. According to the present invention, a thermosetting conductive resin composition for forming electrodes of electronic components can be provided that has high viscosity stability and can form a conductive resin layer having a reduced decrease in conductivity (excellent conductivity) and excellent moisture resistance, even when the thermosetting silicone resin having hydroxyl groups and the conductive powder including a base metal such as Cu are included.

Abstract: The present specification relates to a carbon nanotube dispersion liquid, a method for preparing same, an electrode slurry composition comprising same, an electrode comprising same, and a lithium secondary battery comprising same, the carbon nanotube dispersion liquid comprising carbon nanotubes; a first dispersant having an amide group; and a second dispersant having an aromatic ring, wherein the viscosity at 25° C. and a shear rate of 15 sec?1 is 2,000 cPs or less.

Abstract: The present invention relates to a method for producing a cesium halide, and more particularly, to a novel method for producing a cesium halide with high purity; and perovskites produced using same.

Abstract: Provided is a method for preparing a cathode active material for a lithium secondary battery, and more particularly, the method includes mixing lithium nitrate, nickel nitrate, cobalt nitrate, and manganese nitrate with a solvent to form a mixture, performing first annealing on the mixture to form an NCM precursor including the lithium nitrate and transition metal oxide (NiCoMnO), compressing the NCM precursor to remove voids, and performing second annealing on the NCM precursor to form NCM particles.

Abstract: Disclosed herein is a battery anode compound including a metal oxide and a metal. Also disclosed herein is a method of providing a battery anode compound comprising synthesizing AlNb11O29 and combining AlNb11O29 and a metal. A Li-ion battery anode compound is also disclosed that includes a slurry comprising up to 70% AlNb11O29, up to 70% Li4Ti5O12, and up to 70% of a metal, wherein the metal is any one of Sb or Sn.

Abstract: Disclosed herein is a nanocomposite including a carbonaceous perimorph, the perimorph having a diameter of less than 1,000 ?m and comprising interconnected cells, each of a plurality of the cells comprising a carbonaceous cell wall possessing an average thickness of less than 100 nm or smaller and a morphology corresponding to a surface region of a, non-metallic template particle, the template particle having a diameter of less than 1,000 ?m, and an interior space bounded and enclosed by the cell wall.

Abstract: Disclosed herein is a process for making a particulate (oxy)hydroxide of TM, where TM represents a combination of metals and includes nickel and at least one metal selected from cobalt and aluminum and manganese. The process includes: (a) combining an aqueous slurry of metallic nickel and at least one metal selected from aluminum and transition metals other than nickel with an oxidant selected from oxygen and nitrate in a first reaction vessel or in a first group of reaction vessels at a temperature of from 5° to 40° C., (b) transferring aqueous reaction medium from the first reaction vessel to a second reaction vessel, where the second reaction vessel contains a slurry of a hydroxide of TM, (c) removing the particles from step (b) from the liquid by a solid-liquid separation method, and drying the particles, and (d) returning liquid phase obtained in step (c) to the first reaction vessel.

Abstract: A method for producing a positive electrode active material, includes the steps of (1) bringing an electrode mixture containing a positive electrode active material, a binder, and an electrolyte into contact with an electrolyte cleaning solvent to obtain a slurry containing a solid component and a liquid component, and then separating the slurry into the solid component and the liquid component, wherein an amount of P in the liquid component after separation is 0.0020 to 2.0 mass %, an amount of F in the liquid component after separation is 0.01 to 7.0 mass %, and an amount of P remaining in the solid component after separation is 0.7 mass % or less; (2) mixing an activation treatment agent with the separated solid component; and (3) heating a mixture obtained to activate the positive electrode active material contained in the mixture.

Abstract: Provided herein are composite electrolytes that include inorganic conductors and polar polymers. By providing the polar polymers as structures such as microspheres in a suspension in a non-polar solvent, the polar polymers can be used as binders in composites that include sulfide electrolytes. The resulting composites have high room temperature conductivities and good mechanical properties. Also provided are composites that include inorganic conductors and other polymers that are insoluble in non-polar solvents. Also provided are composites that include polar polymers and lithium argyrodite conductors and methods of processing the composites that result in high conductivity retention. Also provided are methods of forming composite electrolytes using suspensions of polymer microstructures in a processing solvent and the resulting composite electrolytes.