WO2002084760A3 - Material and process useful for preparing embossed flexible graphite article - Google Patents

Material and process useful for preparing embossed flexible graphite article Download PDF

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Publication number
WO2002084760A3
WO2002084760A3 PCT/US2002/010397 US0210397W WO02084760A3 WO 2002084760 A3 WO2002084760 A3 WO 2002084760A3 US 0210397 W US0210397 W US 0210397W WO 02084760 A3 WO02084760 A3 WO 02084760A3
Authority
WO
WIPO (PCT)
Prior art keywords
flexible graphite
process useful
graphite article
embossed flexible
preparing embossed
Prior art date
Application number
PCT/US2002/010397
Other languages
French (fr)
Other versions
WO2002084760A2 (en
Inventor
Jeremy Klug
Original Assignee
Graftech Inc
Jeremy Klug
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/826,228 external-priority patent/US6716381B2/en
Priority claimed from US09/826,227 external-priority patent/US7341781B2/en
Application filed by Graftech Inc, Jeremy Klug filed Critical Graftech Inc
Priority to MXPA03009116A priority Critical patent/MXPA03009116A/en
Priority to EP02731230A priority patent/EP1385783A4/en
Priority to AU2002303216A priority patent/AU2002303216A1/en
Priority to BRPI0208668-9A priority patent/BR0208668B1/en
Publication of WO2002084760A2 publication Critical patent/WO2002084760A2/en
Publication of WO2002084760A3 publication Critical patent/WO2002084760A3/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0223—Composites
    • H01M8/0226—Composites in the form of mixtures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/536—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite based on expanded graphite or complexed graphite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/71—Ceramic products containing macroscopic reinforcing agents
    • C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80—Fibres, filaments, whiskers, platelets, or the like
    • C04B35/82—Asbestos; Glass; Fused silica
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0213—Gas-impermeable carbon-containing materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0204—Non-porous and characterised by the material
    • H01M8/0221—Organic resins; Organic polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
    • H01M8/026—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/449—Organic acids, e.g. EDTA, citrate, acetate, oxalate
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/522—Oxidic
    • C04B2235/5228—Silica and alumina, including aluminosilicates, e.g. mullite
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/522—Oxidic
    • C04B2235/5232—Silica or silicates other than aluminosilicates, e.g. quartz
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/522—Oxidic
    • C04B2235/5236—Zirconia
    • C—CHEMISTRY; METALLURGY
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
    • C04B2235/5244—Silicon carbide
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/52—Constituents or additives characterised by their shapes
    • C04B2235/5208—Fibers
    • C04B2235/5216—Inorganic
    • C04B2235/524—Non-oxidic, e.g. borides, carbides, silicides or nitrides
    • C04B2235/5248—Carbon, e.g. graphite
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/608—Green bodies or pre-forms with well-defined density
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Abstract

A material useful in a process for embossing a flexible graphite sheet is presented. The inventive material is a flexible graphite sheet which has a preselected void condition which provides the capability of controlling the morphology, and thus the functional characteristics, of the resulting embossed sheet (100).
PCT/US2002/010397 2001-04-04 2002-04-02 Material and process useful for preparing embossed flexible graphite article WO2002084760A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
MXPA03009116A MXPA03009116A (en) 2001-04-04 2002-04-02 Material and process useful for preparing embossed flexible graphite article.
EP02731230A EP1385783A4 (en) 2001-04-04 2002-04-02 Material and process useful for preparing embossed flexible graphite article
AU2002303216A AU2002303216A1 (en) 2001-04-04 2002-04-02 Material and process useful for preparing embossed flexible graphite article
BRPI0208668-9A BR0208668B1 (en) 2001-04-04 2002-04-02 process for producing flexibly shaped graphite sheet.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US09/826,228 US6716381B2 (en) 2001-04-04 2001-04-04 Process for preparing embossed flexible graphite article
US09/826,227 2001-04-04
US09/826,227 US7341781B2 (en) 2001-04-04 2001-04-04 Material useful for preparing embossed flexible graphite article
US09/826,228 2001-04-04

Publications (2)

Publication Number Publication Date
WO2002084760A2 WO2002084760A2 (en) 2002-10-24
WO2002084760A3 true WO2002084760A3 (en) 2003-04-17

Family

ID=27124989

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/010397 WO2002084760A2 (en) 2001-04-04 2002-04-02 Material and process useful for preparing embossed flexible graphite article

Country Status (6)

Country Link
EP (1) EP1385783A4 (en)
AU (1) AU2002303216A1 (en)
BR (1) BR0208668B1 (en)
MX (1) MXPA03009116A (en)
TW (1) TW592968B (en)
WO (1) WO2002084760A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8067091B2 (en) 2006-12-20 2011-11-29 Graftech International Holdings Inc. Dimensionally stable, leak-free graphite substrate
US20230312941A1 (en) * 2022-04-02 2023-10-05 James R. Cartiglia Reducing the detectable cross-section of an object

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4591166A (en) * 1982-10-01 1986-05-27 T & N Materials Research Limited Gasket and process of making gaskets from exfoliated graphite
US4961991A (en) * 1990-01-29 1990-10-09 Ucar Carbon Technology Corporation Flexible graphite laminate
US6017633A (en) * 1997-03-18 2000-01-25 Ucar Carbon Technology Corporation Flexible graphite composite sheet and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6037074A (en) * 1998-07-07 2000-03-14 Ucar Carbon Technology Corporation Flexible graphite composite for use in the form of a fuel cell flow field plate
AU2000247991A1 (en) * 2000-04-14 2001-10-30 Graftech Inc. Graphite article useful as an electrode for an electrochemical fuel cell
US20020164483A1 (en) * 2001-04-04 2002-11-07 Mercuri Robert Angelo Graphite article having predetermined anisotropic characteristics and process therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4591166A (en) * 1982-10-01 1986-05-27 T & N Materials Research Limited Gasket and process of making gaskets from exfoliated graphite
US4961991A (en) * 1990-01-29 1990-10-09 Ucar Carbon Technology Corporation Flexible graphite laminate
US6017633A (en) * 1997-03-18 2000-01-25 Ucar Carbon Technology Corporation Flexible graphite composite sheet and method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Grafoil", FLEXIBLE GRAPHITE SHEETS (UCAR CARBON COMPANY, INC.), 1988, pages 1 - 6, XP002951643 *
See also references of EP1385783A4 *

Also Published As

Publication number Publication date
EP1385783A2 (en) 2004-02-04
AU2002303216A1 (en) 2002-10-28
BR0208668B1 (en) 2010-11-03
BR0208668A (en) 2004-08-03
EP1385783A4 (en) 2006-06-07
WO2002084760A2 (en) 2002-10-24
TW592968B (en) 2004-06-21
MXPA03009116A (en) 2004-11-22

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