VANADIUM OXIDE PARTICLES AND BATTERIES WITH ELECTROACTIVE NANOPARTICLES

Vanadium oxide nanoparticles with different vanadium oxidation states and different crystal structures. The particles have a narrow distribution of particle diameters and unique properties that result from their small size and correspondingly large surface area. The particles are produced by laser p...

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Bibliographic Details
Main Authors KUMAR, SUJEET, KAMBE, NOBUYUKI, GARDNER, JAMES, T, BI, XIANGXIN
Format Patent
LanguageEnglish
French
Published 28.01.1999
Edition6
Subjects
BASIC ELECTRIC ELEMENTS
CHEMISTRY
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
ELECTRICITY
INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS
INORGANIC CHEMISTRY
MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES
METALLURGY
NANOTECHNOLOGY
PERFORMING OPERATIONS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
TRANSPORTING
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Summary:Vanadium oxide nanoparticles with different vanadium oxidation states and different crystal structures. The particles have a narrow distribution of particle diameters and unique properties that result from their small size and correspondingly large surface area. The particles are produced by laser pyrolysis, and can be further treated to change their properties, without destroying their nanoscale size. The stoichiometry and crystal structure can be varied by initial heating under mild conditions. The materials may be used as cathode active materials in high energy density batteries. L'invention concerne des nanoparticules d'oxyde de vanadium avec différents états d'oxydation du vanadium et différentes structures cristallines. Ces particules présentent une plage étroite de distribution des diamètres de particules, ainsi que des propriétés uniques découlant de leur petite taille et de leur superficie relativement grande. Ces particules sont produites par pyrolyse au laser, et peuvent subir d'autres traitements pour changer de propriétés, sans altérer leur taille de l'ordre du nanomètre. La stoechiométrie et la structure cristalline peuvent être modifiées par chauffage initial dans des conditions douces. Ces matières peuvent être utilisées comme matières actives pour cathode dans des batteries à haute densité d'énergie.
Bibliography:Application Number: WO1998US14947