GB1253217A - - Google Patents

Info

Publication number
GB1253217A
GB1253217A GB5977768A GB1253217DA GB1253217A GB 1253217 A GB1253217 A GB 1253217A GB 5977768 A GB5977768 A GB 5977768A GB 1253217D A GB1253217D A GB 1253217DA GB 1253217 A GB1253217 A GB 1253217A
Authority
GB
United Kingdom
Prior art keywords
conductor
substrate
foil
massive
copper
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB5977768A
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
Application filed filed Critical
Publication of GB1253217A publication Critical patent/GB1253217A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8896—Pressing, rolling, calendering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/22—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded
    • B23K20/233—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating taking account of the properties of the materials to be welded without ferrous layer
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
    • H01M4/8657—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites layered
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8803—Supports for the deposition of the catalytic active composition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8875—Methods for shaping the electrode into free-standing bodies, like sheets, films or grids, e.g. moulding, hot-pressing, casting without support, extrusion without support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90—Selection of catalytic material
    • H01M4/92—Metals of platinum group
    • 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

1,253,217. Welding by pressure. R. M. GWYNN, and T. THEMY. 16 Dec., 1968, No. 59777/68. Heading B3R. [Also in Division C7] In a method of making an electrode for electrolytic use, by bonding a foil 13 of metal or metal alloy of the platinum group, e.g. ruthenium, rhodium, indium, or platinum, to an oxidation resistant metal substrate 12 of, e.g. tantalum, niobium, titanium or their alloys, or aluminium, nickel, or stainless steel, a linear zone of contact is established between a cylindrical conductor 16, rotatable in a massive conductor 14, and the foil while the substrate is supported by a second massive conductor, and a pressure of from 10 to 300 pounds per linear inch and current to provide at least 3 kva per linear inch of the zone of contact, at below 12 volts, are applied while the conductor 16 is advanced in a direction perpendicular to the zone of contact at a rate to soften, but not melt, the surface of the substrate. In one embodiment (as shown) the cylindrical conductor 16 is received in a groove 15 of the conductor 14 which may be cooled. The substrate may be surfaced, before bonding of the foil thereto, with a coating of palladium, silver, or other chlorine-resistant metal. The current supply is preferably in the range from 7 to 100 kva at a voltage in the range from 0À1 to 5 volts. The cylindrical conductor 16 may be of tungsten, tungsten carbide or alloys thereof containing less than 25% of cobalt, tantalum and titanium, or stainless steel. The rate of advance of the conductor 16 may be from 6 to 36 inches per minute, and the substrate surface may be heated to from 100‹ to 500‹ C. below its melting point. The massive conductors may be of copper or hard copper alloy, e.g. copper-silver or 2% beryllium-copper. In a modification the cylindrical conductor has an enlarged diameter portion received in a similarly enlarged portion of the groove in the conductor 14. In such a case, at least portions forming the inner surface of conductor 14 are of tantalum, rhodium, gold or their alloys. The second massive conductor may be a bed-plate 10 or a large diameter roll (20) (Fig. 4, not shown) with attendant flat work-supports (24, 25). Current-may be fed to conductor 14 by a plurality of thin, flexible cables. The substrate may be surfaced with the foil over all its surface, or only part thereof, and un-surfaced parts may be coated with resin, glassy ceramic &c. (Figs. 6-9, not shown). A typical alloy substrate is 80-85% titanium with 20-15% molybdenum.
GB5977768A 1968-12-16 1968-12-16 Expired GB1253217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5977768 1968-12-16

Publications (1)

Publication Number Publication Date
GB1253217A true GB1253217A (en) 1971-11-10

Family

ID=10484403

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5977768A Expired GB1253217A (en) 1968-12-16 1968-12-16

Country Status (1)

Country Link
GB (1) GB1253217A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008043766A2 (en) * 2006-10-11 2008-04-17 Industrie De Nora S.P.A. Cathode for electrolytic processes
US20140209466A1 (en) * 2013-01-31 2014-07-31 Wyatt Technology Corporation Corrosion resistant electrodes for electrophoretic mobility measurements and method for their fabrication

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008043766A2 (en) * 2006-10-11 2008-04-17 Industrie De Nora S.P.A. Cathode for electrolytic processes
WO2008043766A3 (en) * 2006-10-11 2008-09-04 Industrie De Nora Spa Cathode for electrolytic processes
US7943020B2 (en) 2006-10-11 2011-05-17 Industries De Nora S.p.A. Cathode for electrolytic processes
TWI417423B (en) * 2006-10-11 2013-12-01 Industrie De Nora Spa Cathode for electrolytic processes
KR101406026B1 (en) 2006-10-11 2014-06-11 인두스트리에 데 노라 에스.피.에이. Cathode for electrolytic processes
NO341616B1 (en) * 2006-10-11 2017-12-11 Industrie De Nora Spa Cathode for electrolytic processes
US20140209466A1 (en) * 2013-01-31 2014-07-31 Wyatt Technology Corporation Corrosion resistant electrodes for electrophoretic mobility measurements and method for their fabrication
US10119935B2 (en) 2013-01-31 2018-11-06 Wyatt Technology Corporation Method for the fabrication of corrosion resistant electrodes
US11774404B2 (en) * 2013-01-31 2023-10-03 Wyatt Technology Corporation Corrosion resistant electrodes

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees