CAS: 12057-24-8; Lithium Oxide

专利信息

专利号:US-7897135-B2
优先权日:2004-09-27
标 题 :Carbon combustion synthesis of oxides
发明人：MARTIROSYAN KAREN S; LUSS DAN
权利人:UNIV HOUSTON
摘要:The present invention is generally directed to a novel, economic synthesis of oxide ceramic composites. Methods of the present invention, referred to as carbon combustion synthesis of oxides (CCSO), are a modification of self-propagating high-temperature synthesis (SHS) methods in which the heat needed for the synthesis is generated by combustion of carbon in oxygen rather than that of a pure metal. This enables a more economic production of the ceramic material and minimizes the presence of intermediate metal oxides in the product. The reactant mixture generally comprises at least one oxide precursor (e.g., a metal or non metal oxide, or super oxide, or nitride, or carbonate, or chloride, or oxalate, or halides) as a reactant, but no pure metal. Pure carbon in the form of graphite or soot is added to the reactant mixture to generate the desired heat (upon ignition). The mixture is placed in a reactor and exposed to gaseous oxygen. The high-temperature exothermic reaction between the carbon and oxygen generates a self-sustaining reaction in the form of a propagating temperature wave that causes a reaction among the reactants. The reaction proceeds rapidly following ignition, and the final product comprises simple and/or complex oxides of elements present in the oxide precursor(s). CCSO also enables synthesis of oxides that cannot be produced by conventional SHS, such as when the pure metal is pyrophoric (such as Li or La) or such as when it melts at room temperature (e.g., Ga) or such as the combustion heat of the metal is relatively low.

专利号:US-7601318-B2
优先权日:2000-09-26
标 题:Method for synthesis of carbon-coated redox materials with controlled size
发明人：ARMAND MICHEL; GAUTHIER MICHEL; MAGNAN JEAN-FRANCOIS; RAVET NATHALIE
权利人:HYDRO QUEBEC; CENTRE NAT RECH SCIENT; UNIV MONTREAL
摘要:A method for the synthesis of compounds of the formula C—Li x M 1−y M′ y (XO 4 ) n , where C represents carbon cross-linked with the compound Li x M 1−y M′ y (XO 4 ) n , in which x, y and n are numbers such as 0≦x≦2, 0≦y≦0.6, and 1≦n≦1.5, M is a transition metal or a mixture of transition metals from the first period of the periodic table, M′ is an element with fixed valency selected among Mg 2+ , Ca 2+ , Al 3+ , Zn 2+ or a combination of these same elements and X is chosen among S, P and Si, by bringing into equilibrium, in the required proportions, the mixture of precursors, with a gaseous atmosphere, the synthesis taking place by reaction and bringing into equilibrium, in the required proportions, the mixture of the precursors, the procedure comprising at least one pyrolysis step of the carbon source compound in such a way as to obtain a compound in which the electronic conductivity measured on a sample of powder compressed at a pressure of 3750 Kg·cm −2 is greater than 10 −8 S·cm −1 . The materials obtained have excellent electrical conductivity, as well a very improved chemical activity.

专利号:US-10944106-B2
优先权日:2018-06-25
标题 :Metal oxide and synthesis of lithium ion battery
发明人：CHEN PENGWEI; WANG MENG; XU LEIMIN; WANG LIANG
权利人:NINGDE AMPEREX TECHNOLOGY LTD
摘要:The present application relates to a metal oxide and synthesis of a lithium ion battery. Specifically, the present application selects a cobalt oxide compound, which uses Co3O4 as a main body, as a precursor of lithium cobalt oxide, and anion doping is performed in particles of Co3O4 to obtain a doped precursor for lithium cobalt oxide. The general formula of the precursor can be expressed as Co3(O1-yMy)4, where about 0
专利号:US-5955051-A
优先权日:1996-08-02
标 题 :Synthesis of lithium nickel cobalt dioxide
发明人：LI WU; CURRIE JOHN CARLETON; WOLSTENHOLME JACK
权利人:WESTAIM TECHNOLOGIES INC
摘要:A single calcination stage process for the synthesis of homogeneous crystalline lithium nickel cobalt dioxide from either a mechanical mixture of nickel and cobalt oxides, hydroxide or oxyhydroxide or a chemical precipitation of a homogeneous nickel cobalt hydroxide or cobalt nickel cobalt oxyhydroxide is provided. The reactants are calcined in the presence of lithium hydroxide and an alkali metal hydroxide under predetermined oxygen partial pressure and temperature conditions. The products of the process are characterized in having a lithium to transition metal ratio closely approximating to the desired theoretical value.

专利号:EP-4008687-A1
优先权日:2020-12-02
标 题:A method for the large scale synthesis of metal oxide nanosheets, and their uses
发明人：VINCENT MEWIN; ETACHERI VINODKUMAR
权利人:FUNDACION IMDEA MAT
摘要:The present invention relates to a rapid, scalable and inexpensive method for the synthesis of metal oxide nanosheets; the uses of the metal oxide nanosheets as electrode active materials and as catalyst; an electrode comprising the metal oxide nanosheets, a process for producing the electrode, a cell comprising the electrode and an energy storage and/or delivery system.

专利号:US-7799944-B2
优先权日:2003-09-05
标题 :Process for the preparation of (meth)acrylate di-ammonium salts and their use as monomers for the synthesis of polymers
发明人：VANNESTE PIET; LOENDERS RAF; VANDEN EYNDE IVAN; EECKHAOUDT SABINE
权利人:TAMINCO N V
摘要:The invention relates to the preparation of (meth)acrylate di-ammonium salts responding to formula (I) n nwherein R 1 represents hydrogen or methyl, each R 2 , independently, represents an alkyl comprising from 1 to 4 carbon atoms, each R 3 , independently, represents an alkyl or an aralkyl and each X − , independently, represents an anion;n nhaving a high purity and their use as monomers for the synthesis of polymers useful as cationic flocculants.