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1. WO2008054774 - MICROMACHINED ELECTROLYTE SHEET, FUEL CELL DEVICES UTILIZING SUCH, AND MICROMACHINING METHOD FOR MAKING FUEL CELL DEVICES

Publication Number WO/2008/054774
Publication Date 08.05.2008
International Application No. PCT/US2007/022985
International Filing Date 31.10.2007
IPC
H01M 8/10 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
CPC
B23K 2103/52
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
2103Materials to be soldered, welded or cut
50Inorganic material, e.g. metals, not provided for in B23K2103/02B23K2103/26
52Ceramics
B23K 26/40
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
36Removing material
40taking account of the properties of the material involved
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
H01M 2300/0074
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2300Electrolytes
0017Non-aqueous electrolytes
0065Solid electrolytes
0068inorganic
0071Oxides
0074Ion conductive at high temperature
H01M 2300/0077
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2300Electrolytes
0017Non-aqueous electrolytes
0065Solid electrolytes
0068inorganic
0071Oxides
0074Ion conductive at high temperature
0077based on zirconium oxide
H01M 8/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
Applicants
  • CORNING INCORPORATED [US]/[US] (AllExceptUS)
  • BLANCHARD, William, C. [US]/[US] (UsOnly)
  • GARNER, Sean, M. [US]/[US] (UsOnly)
  • KETCHAM, Thomas, D. [US]/[US] (UsOnly)
  • LI, Xinghua [CN]/[US] (UsOnly)
Inventors
  • BLANCHARD, William, C.
  • GARNER, Sean, M.
  • KETCHAM, Thomas, D.
  • LI, Xinghua
Agents
  • SHORT, Svetlana, Z.
Priority Data
60/855,48831.10.2006US
60/995,20925.09.2007US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) MICROMACHINED ELECTROLYTE SHEET, FUEL CELL DEVICES UTILIZING SUCH, AND MICROMACHINING METHOD FOR MAKING FUEL CELL DEVICES
(FR) FEUILLE ÉLECTROLYTIQUE MICRO-USINÉE, DISPOSITIFS À PILE À COMBUSTIBLE L'UTILISANT, ET PROCÉDÉ DE MICRO-USINAGE DE FABRICATION DE DISPOSITIFS À PILE À COMBUSTIBLE
Abstract
(EN) A sintered electrolyte sheet comprising: a body of no more than 45 μm thick and laser machined features with at least one edge surface having at least 10% ablation. A method of micromachining the electrolyte sheet includes the steps of: (i) supporting a sintered electrolyte sheet; (ii) micromachining said sheet with a laser, wherein said laser has a wavelength of less than 2 μm, fluence of less than 200 Joules/cm2, repetition rate (RR) of between 30 Hz and 1 MHz, and cutting speed of preferably over 30 mm/sec.
(FR) L'invention concerne une feuille électrolytique frittée comprenant : un corps ne dépassant pas 45 µm d'épaisseur et des caractéristiques usinées au laser avec au moins une surface marginale présentant au moins 10% d'ablation. Un procédé de micro-usinage de la feuille électrolytique comporte les phases consistant à : (i) supporter une feuille électrolytique frittée ; (ii) micro-usiner ladite feuille au laser, caractérisé en ce que ledit laser possède une longueur d'onde inférieure à 2 µm, une fluence inférieure à 200 Joules/cm2, un taux de répétition (RR) compris entre 30 Hz et 1 MHz, et une vitesse de découpe de préférence supérieure à 30 mm/sec.
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