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1. WO2006045923 - NANOSTRUCTURE MATERIAL, METHOD FOR THE PREPARATION THEREOF

Publication Number WO/2006/045923
Publication Date 04.05.2006
International Application No. PCT/FR2005/002581
International Filing Date 18.10.2005
IPC
C01B 31/00 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
31Carbon; Compounds thereof
C01D 15/02 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
15Lithium compounds
02Oxides; Hydroxides
C01G 31/02 2006.1
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
31Compounds of vanadium
02Oxides
H01M 10/36 2010.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
36Accumulators not provided for in groups H01M10/05-H01M10/3492
CPC
B01J 23/22
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
23Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
16of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
20Vanadium, niobium or tantalum
22Vanadium
B82B 1/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
BNANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS, MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES AS DISCRETE UNITS; MANUFACTURE OR TREATMENT THEREOF
1Nanostructures formed by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
B82B 3/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
BNANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS, MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES AS DISCRETE UNITS; MANUFACTURE OR TREATMENT THEREOF
3Manufacture or treatment of nanostructures by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units
B82Y 40/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
40Manufacture or treatment of nanostructures
H01M 10/052
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
H01M 10/0525
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
0525Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
Applicants
  • BATSCAP [FR]/[FR] (AllExceptUS)
  • CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE [FR]/[FR] (AllExceptUS)
  • GAUBICHER, Joël [FR]/[FR] (UsOnly)
  • GUYOMARD, Dominique [FR]/[FR] (UsOnly)
  • DUBARRY, Matthieu [FR]/[FR] (UsOnly)
  • DESCHAMPS, Marc [FR]/[FR] (UsOnly)
  • MOREAU, Philippe [FR]/[FR] (UsOnly)
Inventors
  • GAUBICHER, Joël
  • GUYOMARD, Dominique
  • DUBARRY, Matthieu
  • DESCHAMPS, Marc
  • MOREAU, Philippe
Agents
  • SUEUR, Yvette
Priority Data
041124322.10.2004FR
Publication Language French (fr)
Filing Language French (FR)
Designated States
Title
(EN) NANOSTRUCTURE MATERIAL, METHOD FOR THE PREPARATION THEREOF
(FR) MATERIAU NANOSTRUCTURE, PROCEDE POUR SA PREPARATION
Abstract
(EN) The invention relates to a nanostructured material. Said material is a nanostructured carbon material consisting of agglomerates of small needles of Li1+aV3O8 and ßLixV2O5 (0,l≤ &agr; ≤ 0,25 et 0,03 ≤ x ≤ 0,667 surrounded by a discontinuous coating of spherical carbon particles. It is obtained by means of a process consisting in preparing a carbon precursor gel by bringing carbon, V2O5- &agr; an a Li precursor into contact with each other, the amounts thereof being such that the ratio of concentrations [V2O5]/[Li] ranges from 1.15 to 1.5, and the mass ratio (carbon)/ (carbon + V2O5+ Li precursor) is 10 to 15, and in subjecting the gel to heat treatment including a first stage at 8O0C - 15O0C pendant 3-12 h, and a second stage between 3000C and 35O0C, during 10 mins to 1 hour, in a nitrogen or argon atmosphere. n. Applications: positive-electrode active material.
(FR) L'invention concerne un matériau nanostructuré . Le matériau est un matériau carboné nanostructuré constitué par des agglomérats de petites aiguilles de Li1+&agr;V3O8 et de ßLixV2O5 (0,l≤ &agr; ≤ 0,25 et 0,03 ≤ x ≤ 0,667 entourées par une couche discontinue de particules sphériques de carbone. Il est obtenu par un procédé consistant à préparer un gel précurseur carboné par mise en contact de carbone, de V2O5- &agr; et d'un précurseur de Li, en quantités telles que le rapport des concentrations [V2O5]/[Li] soit compris entre 1,15 et 1,5, et que le rapport en masse (carbone)/ (carbone + V2O5+précurseur de Li) soit de 10 à 15, et à soumettre le gel à un traitement thermique comprenant une lère étape à 8O0C - 15O0C pendant 3-12 h, et une 2ème étape entre 3000C et 35O0C, pendant 10 min à 1 heure, sous atmosphère d'azote ou d' argon. Applications : matière active d'électrode positive.
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