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1. WO2011037688 - METHOD OF FABRICATING ELECTRODES INCLUDING HIGH-CAPACITY, BINDER-FREE ANODES FOR LITHIUM-ION BATTERIES

Publication Number WO/2011/037688
Publication Date 31.03.2011
International Application No. PCT/US2010/044346
International Filing Date 04.08.2010
IPC
H01M 4/02 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
CPC
B01J 19/08
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
19Chemical, physical or physico-chemical processes in general; Their relevant apparatus
08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
B82Y 30/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
30Nanotechnology for materials or surface science, e.g. nanocomposites
H01B 1/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
1Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
H01B 1/04
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
1Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
04mainly consisting of carbon-silicon compounds, carbon or silicon
H01B 1/08
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
1Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
06mainly consisting of other non-metallic substances
08oxides
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
  • ALLIANCE FOR SUSTAINABLE ENERGY, LLC [US]/[US] (AllExceptUS)
  • BAN, Chunmei [CN]/[US] (UsOnly)
  • WU, Zhuangchun [CN]/[US] (UsOnly)
  • DILLON, Anne C. [US]/[US] (UsOnly)
Inventors
  • BAN, Chunmei
  • WU, Zhuangchun
  • DILLON, Anne C.
Agents
  • TRENNER, Mark D.
Priority Data
12/565,50023.09.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD OF FABRICATING ELECTRODES INCLUDING HIGH-CAPACITY, BINDER-FREE ANODES FOR LITHIUM-ION BATTERIES
(FR) PROCÉDÉ DE FABRICATION D'ÉLECTRODES COMPORTANT DES ANODES DE GRANDE CAPACITÉ, EXEMPTES DE LIANT POUR DES BATTERIES AU LITHIUM-ION
Abstract
(EN)
An electrode (110) is provided that may be used in an electrochemical device (100) such as an energy storage/discharge device, e g, a lithium-ion battery, or an electrochromic device, e g, a smart window Hydrothermal techniques and vacuum filtration methods were applied to fabricate the electrode (110) The electrode (110) includes an active portion (140) that is made up of electrochemically active nanoparticles, with one embodiment utilizing 3d-transιtιon metal oxides to provide the electrochemical capacity of the electrode (110) The active material (140) may include other electrochemical materials, such as silicon, tin, lithium manganese oxide, and lithium iron phosphate The electrode (110) also includes a matπx or net (170) of electrically conductive nanomaterial that acts to connect and/or bind the active nanoparticles (140) such that no binder mateπal is required in the electrode (110)
(FR)
La présente invention concerne une électrode (110) qui peut être utilisée dans un dispositif électrochimique (100) tel qu'un dispositif de stockage/décharge d'énergie, par exemple une batterie au lithium-ion, ou un dispositif électrochromique, par exemple une fenêtre intelligente. Des techniques hydrothermiques et des procédés de filtration sous vide ont été appliqués pour fabriquer l'électrode (110). L'électrode (110) comporte une partie active (140) qui est composée de nanoparticules électrochimiquement actives dans un mode de réalisation utilisant des oxydes métalliques de transition 3d pour fournir les propriétés électrochimiques de l'électrode (110). Le matériau actif (140) peut comporter d'autres matériaux électrochimiques, tels que du silicium, de l'étain, de l'oxyde de lithium-manganèse et du phosphate de lithium-fer. L'électrode (110) comporte également une matrice ou un réseau (170) de nanomatériaux électriquement conducteurs qui agissent pour connecter et/ou relier les nanoparticules actives (140) de sorte qu'aucun matériau liant ne soit requis dans l'électrode (110).
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