WO1982003231A1 - Elements constructifs de cellules d'electrolyse - Google Patents

Elements constructifs de cellules d'electrolyse Download PDF

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Publication number
WO1982003231A1
WO1982003231A1 PCT/CH1982/000042 CH8200042W WO8203231A1 WO 1982003231 A1 WO1982003231 A1 WO 1982003231A1 CH 8200042 W CH8200042 W CH 8200042W WO 8203231 A1 WO8203231 A1 WO 8203231A1
Authority
WO
WIPO (PCT)
Prior art keywords
component
cells according
electrochemical
oxide layer
base body
Prior art date
Application number
PCT/CH1982/000042
Other languages
German (de)
English (en)
Inventor
Horlogerie Rech Lab Suisse
Original Assignee
Tannenberger Helmut
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 by Tannenberger Helmut filed Critical Tannenberger Helmut
Priority to AU82042/82A priority Critical patent/AU8204282A/en
Publication of WO1982003231A1 publication Critical patent/WO1982003231A1/fr

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Classifications

    • 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
    • C25B13/00—Diaphragms; Spacing elements
    • C25B13/04—Diaphragms; Spacing elements characterised by the material

Definitions

  • the separator must be sufficiently thin and porous to increase the electrical resistance of the cell as little as possible, be corrosion-resistant to the highly concentrated potassium hydroxide solution, and have sufficient mechanical properties to be easily installed in an industrial cell.
  • Other examples are electrodes, which should be insulating in certain places, the walls of cells which are exposed to the interface between the electrolytes and the gas phase, or the passage of the electrodes through the cell walls.
  • the invention described here is therefore a component of an electrochemical electrolysis cell, which consists of a metallic base material, which is either directly coated with a thin oxide layer, or which still has a suitable intermediate layer between the oxide layer and the base material.
  • a separator for an electrolysis cell consists of a fine-meshed network of steel wire with a mesh size of -30 ⁇ m, which was covered with a 2 ⁇ m thick layer of TiO 2 using the CVD process and then treated at elevated temperature in concentrated potassium hydroxide solution .
  • the component thus obtained is corrosion-resistant, flexible and can easily be installed in an electrolysis cell.
  • a separator for an electrolysis cell consists of a fine-mesh network made of austenitic steel, which was first provided with a 1 ⁇ m thick TiN layer and then with a 1 ⁇ m thick Al 2 O 3 layer using the CVD process.
  • Example 3 A separator for an electrolysis cell consists of a felt made of rustproof, ferritic steel, which in its entire volume is first of all coated with a 0.5 ⁇ m to 1 ⁇ m thick layer of TiC using the CVD process and then with a 1 ⁇ m layer thick layer of Al 2 O 3 was coated.
  • Example 4 An electrode holder that is exposed to both the electrolyte and the corrosive gases in the cell consists of a ferritic, stainless steel, which is initially coated with a 2 ⁇ m thick TiC layer and then with a 1 ⁇ m thick Al 2 O 3 Layer was provided using the CVD process.
  • the insulating, ceramic layers can consist not only of Al 2 O 3 or TiO 2 but also of other ceramic materials, such as zirconium oxide, zirconates, titanates and similar substances.
  • the intermediate layer can consist of carbides, nitrides or borides of the elements Ti, Zr, Nb, Te or the like.
  • CVD process is particularly suitable for the application of the layers, other processes, e.g. Plasma spraying, flame spraying and the like are used.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Chemical Vapour Deposition (AREA)

Abstract

Les elements constructifs destines a la fabrication de cellules d'electrolyse, sont electriquement isolants, resistants aux produits chimiques contenus dans les cellules et presentent une solidite et une flexibilite leur permettant d'etre utilises dans des cellules d'electrolyse industrielle. Les elements constructifs sont remarquables en ce qu'ils sont constitues par un corps de base metallique revetu d'une mince couche d'oxyde. Entre la couche d'oxyde et le corps de base peut etre disposee une couche intermediaire. Les elements constructifs peuvent constituer des separateurs, des porte-electrodes, des parois etc...
PCT/CH1982/000042 1981-03-20 1982-03-19 Elements constructifs de cellules d'electrolyse WO1982003231A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU82042/82A AU8204282A (en) 1981-03-20 1982-03-19 Constructive elements of electrolysis cells

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH188881 1981-03-20
CH1888/81810320 1981-03-20

Publications (1)

Publication Number Publication Date
WO1982003231A1 true WO1982003231A1 (fr) 1982-09-30

Family

ID=4220940

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1982/000042 WO1982003231A1 (fr) 1981-03-20 1982-03-19 Elements constructifs de cellules d'electrolyse

Country Status (2)

Country Link
EP (1) EP0074963A1 (fr)
WO (1) WO1982003231A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1046723A1 (fr) * 1999-04-19 2000-10-25 Sumitomo Metal Industries, Ltd. Produit en acier inoxydable pour la production de pile à combustible avec les electrodes polymères
US6884363B2 (en) 2000-11-10 2005-04-26 Honda Giken Kogyo Kabushiki Kaisha Method of surface treatment for stainless steel product for fuel cell

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1255946A (fr) * 1958-10-29 1961-03-17 Amalgamated Curacao Patents Co Diaphragme d'électrolyse
US3222265A (en) * 1958-10-29 1965-12-07 Amalgamated Curacao Patents Co Electrolysis method and apparatus employing a novel diaphragm
US3248311A (en) * 1962-03-29 1966-04-26 Ethyl Corp Manufacture of sodium
FR2067802A5 (en) * 1969-11-18 1971-08-20 Paris Rene Metal boride electrodes
US4119503A (en) * 1977-07-15 1978-10-10 Oronzio De Nora Impianti Elettrochimici S.P.A. Two layer ceramic membranes and their uses
US4157943A (en) * 1978-07-14 1979-06-12 The International Nickel Company, Inc. Composite electrode for electrolytic processes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1255946A (fr) * 1958-10-29 1961-03-17 Amalgamated Curacao Patents Co Diaphragme d'électrolyse
US3222265A (en) * 1958-10-29 1965-12-07 Amalgamated Curacao Patents Co Electrolysis method and apparatus employing a novel diaphragm
US3248311A (en) * 1962-03-29 1966-04-26 Ethyl Corp Manufacture of sodium
FR2067802A5 (en) * 1969-11-18 1971-08-20 Paris Rene Metal boride electrodes
US4119503A (en) * 1977-07-15 1978-10-10 Oronzio De Nora Impianti Elettrochimici S.P.A. Two layer ceramic membranes and their uses
US4157943A (en) * 1978-07-14 1979-06-12 The International Nickel Company, Inc. Composite electrode for electrolytic processes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1046723A1 (fr) * 1999-04-19 2000-10-25 Sumitomo Metal Industries, Ltd. Produit en acier inoxydable pour la production de pile à combustible avec les electrodes polymères
US6379476B1 (en) 1999-04-19 2002-04-30 Sumitomo Metal Industries, Ltd. Stainless steel product for producing polymer electrode fuel cell
US6884363B2 (en) 2000-11-10 2005-04-26 Honda Giken Kogyo Kabushiki Kaisha Method of surface treatment for stainless steel product for fuel cell
DE10194846B4 (de) * 2000-11-10 2008-02-28 Honda Giken Kogyo K.K. Verfahren zur Oberflächenbehandlung eines rostfreien Stahlprodukts für eine Brennstoffzelle

Also Published As

Publication number Publication date
EP0074963A1 (fr) 1983-03-30

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