Abstract: The present invention provides a conductive silica sol composition containing at least a silica sol composition, and at least one selected from perfluoroalkyl sulfonates perfluoroalkyl sulfone imide salts, and bis(fluorosulfonyl) imide salts.
Abstract: A silicon oxide for use as a negative electrode active material of a lithium-ion secondary battery is characterized by: a g-value measured by an ESR spectrometer is in the range of not less than 2.0020 to not more than 2.0050; and given that A, B, and C are the area intensities of peaks near 420 cm?1, 490 cm?1 and 520 cm?1 respectively in a Raman spectrum measured by a Raman spectroscopy, A/B is not less than 0.5 and C/B is not more than 2. The lithium-ion secondary battery has excellent cycle characteristic and initial efficiency in addition to high capacity. The silicon oxide preferably has a spin density in the range of not less than 1×1017 spins/g to not more than 5×1019 spins/g. A negative electrode material for the lithium-ion secondary battery contains not less than 20% by mass of this silicon oxide as a negative electrode active material.
Abstract: A nanoparticle-resin composition includes a nanoparticle, a silicone resin having a reactive functional group at its terminal end, and a compound selected from a silane group-containing compound, a silazane compound, or a combination including at least one of the foregoing. In addition, a nanoparticle-resin composite includes a silicone resin matrix including the cure product of a silicone resin having a reactive functional group at its terminal end, a plurality of nanoparticle clusters dispersed in the silicone resin matrix, and a buffer layer encapsulating the nanoparticle cluster. The buffer layer includes a compound selected from a silane group-containing compound, a silazane compound, or a combination including at least one of the foregoing compounds.
Abstract: Methods and apparatus relate to methods of making carbonaceous material or coating from a precursor. Oxidation of hydrocarbons forming the precursor occurs upon adding an oxidation agent to a mixture of the precursor and a solvent for the precursor. The oxidation of the hydrocarbons yields constituents that are insoluble in the solvent and may not melt. The constituents that are insoluble in the solvent may further coat solid particles, if the solid particles are provided in the mixture. Carbonization of solids recovered by separation from liquids in the mixture increases carbon weight percent of the constituents that are insoluble in the solvent. The methods result in products that provide the carbonaceous material or coating and are suitable for use in electrodes.
Abstract: A method for forming nanometer scale dot-shaped materials is provided. The method includes providing a sub-micrometer scale material and a metallo-organic compound. The sub-micrometer scale material and the metallo-organic compound are mixed in a solvent. Then, the metallo-organic compound is decomposed by thermal decomposition process and reduced to form a plurality of nanometer scale dot-shaped materials on the sub-micrometer scale material, wherein the sub-micrometer scale material and the nanometer-scale dot-shaped materials are heterologous materials. Then, the plurality of nanometer scale dot-shaped materials is melted, such that a plurality of the adjacent sub-micrometer scale materials is connected to each other to form a continuous interface between the sub-micrometer scale materials.
Type:
Grant
Filed:
September 21, 2009
Date of Patent:
December 16, 2014
Assignee:
Industrial Technology Research Institute
Abstract: A resin material is provided which comprises at least one thermoset resin, carbon conductive additive material, and at least one thermoplastic polymer resin. The thermoplastic polymer resin dissolves in the thermoset polymer resin and phase separates upon cure. There is also provided a method of making the resin material, and additionally a composite material that comprising said resin material in combination with a fibrous reinforcement. The resin material and composite material may each be used in an uncured or cured form, and may find particular use as a prepreg material.
Abstract: A compound semiconductor precursor ink composition includes an ink composition for forming a chalcogenide semiconductor film and a peroxide compound mixed with the ink composition. A method for forming a chalcogenide semiconductor film and a method for forming a photovoltaic device each include using the compound semiconductor precursor ink composition containing peroxide compound to form a chalcogenide semiconductor film.
Abstract: A positive active material includes first and second lithium nickel complex oxides. A positive electrode and lithium battery include the positive active material. The positive active material, and the lithium battery including the positive active material have increased filling density, are thermally stable, and have improved capacity.
Type:
Grant
Filed:
March 8, 2011
Date of Patent:
October 28, 2014
Assignee:
Samsung SDI Co., Ltd.
Inventors:
Min-Han Kim, Do-Hyung Park, Ji-Hyun Kim, Jeong-Seop Lee, Chang-Hyuk Kim, Seon-Young Kwon, Yoon-Chang Kim
Abstract: Provided is an electrode active material comprising a nickel-based lithium transition metal oxide (LiMO2) wherein the nickel-based lithium transition metal oxide contains nickel (Ni) and at least one transition metal selected from the group consisting of manganese (Mn) and cobalt (Co), wherein the content of nickel is 50% or higher, based on the total weight of transition metals, and has a layered crystal structure and an average primary diameter of 3 ?m or higher, wherein the amount of Ni2+ taking the lithium site in the layered crystal structure is 5.0 atom % or less.
Type:
Grant
Filed:
June 2, 2010
Date of Patent:
October 14, 2014
Assignee:
LG Chem, Ltd.
Inventors:
Sinyoung Park, Sung kyun Chang, Hong-Kyu Park, Seung Tae Hong, Youngsun Choi
Abstract: A metal fine particle for a conductive metal paste includes a protective agent covering a surface of the metal fine particle. An amount of heat generated per unit mass (g) of the metal fine particle is not less than 500 J at a temperature of an external heat source temperature in a range of 200° C. to 300° C. when being calcined by the external heat source. The protective agent includes at least one selected from the group consisting of dipropylamine, dibutylamine, triethylamine, tripropylamine, tributylamine, butanethiol, pentanethiol, hexanethiol, heptanethiol, octanethiol, nonanethiol, decanethiol, undecanethiol and dodecanethiol. The content of the protective agent is in a range of 0.1 to 20% by mass with respect to the mass of the metal fine particle.
Abstract: According to the present invention, there is provided a process for producing lithium manganate particles having a high output and an excellent high-temperature stability. The present invention relates to a process for producing lithium manganate particles comprising the steps of mixing a lithium compound, a manganese compound and a boron compound with each other; and calcining the resulting mixture in a temperature range of 800 to 1050° C., wherein an average particle diameter (D50) of the boron compound is not more than 15 times an average particle diameter (D50) of the manganese compound, and wherein the lithium manganate particles have a composition represented by the following chemical formula: Li1+xMn2-x-yY1yO4+B in which Y1 is at least one element selected from the group consisting of Ni, Co, Mg, Fe, Al, Cr and Ti, and x and y satisfy the conditions of 0.03?x?0.15 and 0?y?0.20, respectively.
Abstract: There is disclosed a conductive particle used for an anisotropic conductive connection material for establishing conductive interconnection between e.g. a substrate and an electrical component. The conductive particle includes a base particle (2) exhibiting electrical conductivity at least on its surface and a continuous insulating resin film (3) formed by welding of fine particles (3a) of an insulating resin that composes the resin film. The surface of the base particle is coated with the continuous insulating resin film. There are formed voids at least between neighboring fine particles.
Abstract: Disclosed are methods of making multi-element, finely divided, metal powders containing one or more reactive metals and one or more non-reactive metals. Reactive metals include metals or mixtures thereof from titanium (Ti), zirconium (Zr), hafnium (Hf), tantalum (Ta), niobium (Nb), vanadium (V), nickel (Ni), cobalt (Co), molybdenum (Mo), manganese (Mn), and iron (Fe). Non-reactive metals include metals or mixtures such as silver (Ag), tin (Sn), bismuth (Bi), lead (Pb), antimony (Sb), zinc (Zn), germanium (Ge), phosphorus (P), gold (Au), cadmium (Cd), berrylium (Be), tellurium (Te).
Type:
Grant
Filed:
August 12, 2009
Date of Patent:
September 23, 2014
Assignee:
E I du Pont de Nemours and Company
Inventors:
William J. Borland, Howard David Glicksman
Abstract: It is an object to provide a method for producing compound semiconductor particles in which monodisperse compound semiconductor particles can be prepared according to the intended object, clogging with products does not occur due to self-dischargeability, a large pressure is not necessary, and productivity is high. In producing compound semiconductor particles by separating and precipitating, in a fluid, semiconductor raw materials, the fluid is formed into a thin film fluid between two processing surfaces arranged so as to be able to approach to and separate from each other, at least one of which rotates relative to the other, and the semiconductor raw materials are separated and precipitated in the thin film fluid.
Abstract: Disclosed are a recovery for a metaloxidic cathodic active material for a lithium ion secondary battery and a synthesis thereof by the recovery method, wherein the recovery method includes (a) dissolving a cathodic active material from a waste lithium ion secondary battery using sulfuric acid solution containing sulfurous acid gas to generate a solution containing metal ions, (b) injecting sodium hydroxide solution and ammonia solution in the solution containing the metal ions to fabricate an electrode active material precursor, and (c) filtrating the active material precursor, followed by drying and grinding, thus to fabricate a solid-state cathodic active material precursor, and the synthesis method is achieved by mixing the electrode active material precursor fabricated according to the recovery method with lithium carbonate or lithium hydroxide, followed by heat treatment, to generate a metaloxidic cathodic active material.
Type:
Grant
Filed:
January 27, 2011
Date of Patent:
September 16, 2014
Assignee:
Korea Institute of Science and Technology
Inventors:
Kyung Yoon Chung, Hwa Young Lee, Byung-Won Cho
Abstract: The present invention relates to a process for preparing transparent conductive oxides, comprising the following steps in the sequence of a-b-c: (a) reaction of at least one starting compound (A) comprising at least one metal or semimetal M and optionally of a dopant (D) comprising at least one doping element M?, where at least one M? is different than M, in the presence of a block copolymer (B) and of a solvent (C) to form a composite material (K), (b) optional application of the composite material (K) to a substrate (S) and (c) heating of the composite material (K) to a temperature of at least 350° C., wherein the block copolymer (B) comprises at least one alkylene oxide block (AO) and at least one isobutylene block (IB). The present invention further relates to the transparent conductive oxides thus obtainable, and to their use in electronic components, as an electrode material and as a material for antistatic applications.
Type:
Grant
Filed:
May 25, 2009
Date of Patent:
September 16, 2014
Inventors:
Gero Nordmann, Norbert Wagner, Alexander Traut, Christian Bittner, Ingo Münster, Bernd Smarsly, Yude Wang, Markus Antonietti, Simone Mascotto
Abstract: It is an object of this invention to provide a bonding material capable of realizing bonding by metallic bonding at a bonding interface at a lower temperature compared to a bonding material using a metal particle having an average particle diameter of not more than 100 nm and a bonding method. There is provided a bonding material including a metal particle precursor being at least one selected from the group consisting of a particle of a metal oxide, a particle of a metal carbonate, and a particle of a metal carboxylate and having an average particle diameter of 1 nm to 50 ?m and a reducing agent composed of an organic substance, wherein the content of the metal particle precursor is more than 50 parts by mass and not more than 99 parts by mass per 100 parts by mass of the bonding material.
Abstract: Disclosed is a method of screen printing an electrically conductive feature on a substrate, the electrically conductive feature including metallic anisotropic nanostructures, and a coating solution therefore.
Abstract: The invention relates to a process for the synthesis of conducting polymer films by vapor phase polymerization. The invention relates particularly to the synthesis of polymerized thiophene films, for example poly(3,4-ethylenedioxythiophene) (PEDOT) films.