Abstract: In the present disclosure, a low-silver-content high-performance conductive paste and a preparation method therefor are provided. The conductive paste comprises the following raw material components in percentage by weight: 8-12.32% of silver nanowires, and 22-4.55% of at least one of spherical silver powder and flaky silver powder, with the balance being a cross-linking agent; the length-to-diameter ratio of the silver nanowires is 10-500. The method comprises the following steps: 1) taking silver nanowires and spherical/flaky silver powder, and adding same to the cross-linking agent; 2) performing ultrasonic oscillation or stirring treatment for 0.5-1 h to prepare uniformly dispersed silver nanowire conductive ink; 3) attaching the conductive ink to a substrate to form a conductive metal layer; 4) placing the conductive metal layer in a drying oven for drying, and finally curing and forming the conductive metal layer to obtain a high-performance conductive material.

Abstract: A conductive hot melt adhesive having near-infrared light welding characteristics includes gallium indium liquid metal, lipoic acid and a polyvalent crosslinking agent. The preparation method includes: mixing gallium indium liquid metal, lipoic acid and polyvalent crosslinking agent, placing in an agate mortar and grinding to obtain a precursor powder; heating the precursor powder to obtain the conductive hot melt adhesive having near-infrared light welding characteristics. The present disclosure discloses that the prepared conductive adhesive hot melt adhesive has good electrical conductivity and can achieve effective bonding to a variety of solid bases through near-infrared light irradiation.

Abstract: A method for producing a lithium-transition metal composite oxide includes steps of preparing a first mixture including a lithium-containing compound and a transition metal compound, obtaining a compressed body by compressing the first mixture at least once, obtaining a molded body by molding at least the compressed body, and obtaining a sintered body by sintering the molded body.

Abstract: A method for preparing a sodium-ion battery cathode material includes: compounding metal salt solutions to obtain a mixed metal salt solution, where metal sources include one or more of nickel, iron, and manganese; performing spray pyrolysis on the mixed metal salt solution to obtain a first precursor powder; mixing the first precursor powder with an isopropanol solvent to obtain a first mixed solution; dispersing nano-scale titanium dioxide into the first mixed solution to obtain a second mixed solution; drying the second mixed solution to obtain a second precursor powder; and mixing the second precursor powder with a sodium source for sintering to obtain a sodium-ion battery cathode material. A titanium-doped sodium-ion battery cathode material is prepared by adding a heterogeneous element titanium to suppress a phase change at the beginning of the charging, thereby improving the structure stability, output characteristic, and service life of the sodium-ion battery.

Abstract: Disclosed herein are methods of making a conductive polymer material, the method comprising: casting, on a substrate, a functionalized polymer solution comprising a conductive backbone of conjugated monomer units and a plurality of nonconductive side chains; and cleaving the plurality of nonconductive side chains off of the conductive backbone to form the conductive polymer material, the conductive polymer material being insoluble in at least one solvent, wherein the conductive backbone in the conductive polymer material comprises conjugated monomer units substituted with a hydroxymethyl substituent. Also disclosed herein are conductive polymer materials made by the same and conductive films comprising the same.

Abstract: Composite materials with good electrical conductivity at low metal loadings are prepared using flowable, curable ink compositions that include polymer matrix precursor, silver nanowires, and reducible metal ions such as silver ions. The composite materials as electrically conductive structures can include up to about 20 wt % total metal and exhibit resistivity of no more than about 500 Ohm-cm. The electrically conductive structures can be designed to exhibit a variety of performance features, for example, the structures can be opaque or translucent, or they can have a total transmittance of visible light of at least about 80%.

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.