CAS: 12057-17-9; Lithium Manganese 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-9546097-B2
优先权日:2012-03-28
标题 :Method for the synthesis of iron hexacyanoferrate
发明人：VAIL SEAN; LU YUHAO; LEE JONG-JAN
权利人:SHARP LABORATORIES AMERICA INC
摘要:A method is provided for synthesizing iron hexacyanoferrate (FeHCF). The method forms a first solution of a ferrocyanide source [A 4 Fe(CN) 6 .P H 2 O] material dissolved in a first solvent, where “Aâ€? is an alkali metal ion. A second solution is formed of a Fe(II) source dissolved in a second solvent. A reducing agent is added and, optionally, an alkali metal salt. The first and second solutions may be purged with an inert gas. The second solution is combined with the first solution to form a third solution in a low oxygen environment. The third solution is agitated in a low oxygen environment, and A X+1 Fe 2 (CN) 6 .Z H 2 O is formed, where X is in the range of 0 to 1. The method isolates the A X+1 Fe 2 (CN) 6 .Z H 2 O from the third solution, and dries the A X+1 Fe 2 (CN) 6 .Z H 2 O under vacuum at a temperature greater than 60 degrees C.

专利号:US-8956760-B2
优先权日:2012-03-28
标题:Electron transport in hexacyanometallate electrode for electrochemical applications
发明人：LU YUHAO; LEE JONG-JAN
权利人:LU YUHAO; LEE JONG-JAN; SHARP LAB OF AMERICA INC
摘要:A structure of intimately contacting carbon-hexacyanometallate is provided for forming a metal-ion battery electrode. Several methods are provided for forming the carbon-hexacyanometallate intimate contact. These methods include (1) adding conducting carbon during the synthesis of hexacyanometallate and forming the carbon-hexacyanometallate powder prior to forming the paste for electrode printing; (2) coating with conducting carbon after hexacyanometallate powder formation and prior to forming the paste for electrode printing; and (3) coating a layer of conducting carbon over the hexacyanometallate electrode.

专利号:US-10020491-B2
优先权日:2013-04-16
标题:Silicon-based active materials for lithium ion batteries and synthesis with solution processing
发明人：HAN YONGBONG; MASARAPU CHARAN; DENG HAIXIA; ANGUCHAMY YOGESH KUMAR; VENKATACHALAM SUBRAMANIAN; LOPEZ HERMAN A
权利人:ENVIA SYSTEMS INC; ZENLABS ENERGY INC
摘要:Silicon based anode active materials are described for use in lithium ion batteries. The silicon based materials are generally composites of nanoscale elemental silicon with stabilizing components that can comprise, for example, silicon oxide-carbon matrix material, inert metal coatings or combinations thereof. High surface area morphology can further contribute to the material stability when cycled in a lithium based battery. In general, the material synthesis involves a significant solution based processing step that can be designed to yield desired material properties as well as providing convenient and scalable processing.

专利号:US-2004228791-A1
优先权日:2003-05-07
标 题 :Li-Co-Mn oxide as cathode material for lithium batteries and method of synthesis of the same

专利号:US-2006097419-A1
优先权日:2004-09-27
标题 :Carbon combustion synthesis of oxides