Composite metal oxide particles
AssigneeNanoGram Corporation
InventorsSujeet Kumar, Hariklia Dris Reitz, Xiangxin Bi
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Abstract
A powder of lithiated manganese oxide has an average particle diameter preferably less than about 250 nm. The particles have a high degree of uniformity and preferably a very narrow particle size distribution. The lithiated manganese oxide can be produce by the reaction of an aerosol where the aerosol comprises both a first metal (lithium) precursor and a second metal (manganese) precursor. Preferably, the reaction involves laser pyrolysis where the reaction is driven by heat absorbed from an intense laser beam.
Claims21
A method of producing composite metal oxide particles, the method comprising reacting an aerosol to form a powder of composite metal oxide particles with an average diameter less than about 500 nm, the aerosol comprising a first metal compound precursor and a second metal compound precursor, wherein the reaction is driven by heat absorbed from a light beam and wherein the light beam intersects the aerosol at a reaction zone.
A method for producing lithium metal oxide, the method comprising pyrolyzing a reactant stream in a reaction chamber, the reactant stream comprising a lithium precursor, a non-lithium metal precursor, and an oxidizing agent, where the pyrolysis is driven by heat absorbed from a light beam.
A method of producing a composite metal oxide particles, the method comprising reacting an aerosol to form a powder of composite metal oxide particles with an average diameter less than about 1 micron, the aerosol comprising a first metal compound precursor and a second metal compound precursor, wherein the reaction is performed in a reaction chamber, the chamber having a cross section along a direction perpendicular to a reactant stream with a dimension along a major axis greater than a factor of about two larger than a dimension along a minor axis.
Dependencies are inferred from the claim text.