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DE1054132B - Electrode for galvanic elements - Google Patents

Electrode for galvanic elements

Info

Publication number
DE1054132B
DE1054132B DES42979A DES0042979A DE1054132B DE 1054132 B DE1054132 B DE 1054132B DE S42979 A DES42979 A DE S42979A DE S0042979 A DES0042979 A DE S0042979A DE 1054132 B DE1054132 B DE 1054132B
Authority
DE
Germany
Prior art keywords
electrode
elements
galvanic elements
nitrogen
oxygen
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.)
Pending
Application number
DES42979A
Other languages
German (de)
Inventor
Dr Phil Nat Wolfram Dipl-Chem
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Corp
Original Assignee
Siemens Corp
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 Siemens Corp filed Critical Siemens Corp
Priority to DES42979A priority Critical patent/DE1054132B/en
Publication of DE1054132B publication Critical patent/DE1054132B/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inert Electrodes (AREA)

Description

Elektrode für galvanische Elemente Die Erfindung betrifft eine Elektrode für galvanische Elemente, insbesondere für Sammler, die sich durch ein sehr hohes elektrochemisches Potential auszeichnet, das in der Größenordnung des Platinpotentials liegt.Electrode for galvanic elements The invention relates to an electrode for galvanic elements, especially for collectors, which are characterized by a very high electrochemical potential, which is of the order of magnitude of the platinum potential lies.

Gemäß der Erfindung besteht die Elektrode aus gesinterten Oxyden der Metalle der III., IV., V. und VIII. Gruppe des Periodischen Systems der Elemente, soweit sie beständige Nitride bzw. Einlagerungsphasen mit mehr oder weniger großen Phasenbreiten bilden und denen ein Teil des Sauerstoffs entzogen und teilweise durch Stickstoff ersetzt ist. Die Herstellung der Elektroden erfolgt zweckmäßig durch Behandlung der gesinterten Oxyde mit Ammoniak bei höherer Temperatur. Je nachdem, welche Oxyde zur Anwendung kommen, sind Temperaturen von 800 bis 2000° C erforderlich. Auch kann es sich vorteilhaft auswirken, die Ammoniakbehandlung unter Druck vorzunehmen. Vorteilhaft geeignet sind Elektroden gemäß der Erfindung, die auf der Basis von gesintertem Titandioxyd hergestellt sind. Die Elektrode kann beispielsweise eine Zusammensetzung von Ti 01.9, No,o@ aufweisen. In das Gitter des Titandioxyds werden somit zwei verschiedene Arten von Fehlstellen, nämlich Sauerstofflücken und Stickstoffatome, eingebaut.According to the invention, the electrode consists of sintered oxides of the metals of the III., IV., V and VIII. Groups of the Periodic Table of the Elements, insofar as they form stable nitrides or intercalation phases with more or less large phase widths and some of the oxygen withdrawn and partially replaced by nitrogen. The electrodes are expediently manufactured by treating the sintered oxides with ammonia at a higher temperature. Depending on which oxides are used, temperatures of 800 to 2000 ° C are required. It can also be advantageous to carry out the ammonia treatment under pressure. Electrodes according to the invention which are produced on the basis of sintered titanium dioxide are advantageously suitable. The electrode can, for example, have a composition of Ti 01.9, No, o @. Two different types of defects, namely oxygen gaps and nitrogen atoms, are built into the lattice of titanium dioxide.

Es ist an sich bekannt, zur Aktivierung von Elektroden aus Titan, z. B. für Sammler, Titandioxydpulver zu verwenden. Für Elektroden von elektrischen Saininlern ist es auch bekannt, ein Gemisch von Titan und Titannitrid zu verwenden. Derartige Elektroden stehen jedoch in keinem Zusammenhang mit der Erfindung, da bei ihnen weder ein Entzug von Sauerstoff noch ein teilweiser Ersatz des Sauerstoffs durch Stickstoff erfolgt.It is known per se to activate electrodes made of titanium, z. B. for collectors to use titanium dioxide powder. For electrodes of electrical It is also known to Sainin learners to use a mixture of titanium and titanium nitride. Such electrodes, however, are not related to the invention with them neither a withdrawal of oxygen nor a partial replacement of the oxygen done by nitrogen.

Die Elektroden gemäß der Erfindung können insbesondere in reversiblen Elementen, z. B. Sammlern, Verwendung finden. Es läßt sich bei geeigneter Anordnung eine elektrochemische Kette aus einem Metall und einer Elektrode gemäß der Erfindung aufbauen, deren Strom-Stoff-Umsatz in hohem Maße reversibel ist, so daß beispielsweise das System des Zink-Ferricyanid/Ferrocyanid - in alkalischer Lösung -Elektrode gemäß der Erfindung als elektrochemischer Sammler benutzt werden kann.The electrodes according to the invention can in particular be reversible Elements, e.g. B. collectors, use. It can be with a suitable arrangement an electrochemical chain composed of a metal and an electrode according to the invention build whose electricity-substance conversion is reversible to a high degree, so that, for example the system of zinc ferricyanide / ferrocyanide - in alkaline solution - electrode according to of the invention can be used as an electrochemical collector.

Claims (1)

PATENTANSPRUCH: Elektrode für galvanische Elemente, insbesondere Sammler, dadurch gekennzeichnet, daß die Elektrode aus gesinterten Oxyden der Metalle der III., IV., V. und VIII. Gruppe des Periodischen Systems der Elemente besteht, soweit sie beständige Nitride bzw. Stickstoff-Einlagerungsphasen mit mehr oder weniger großen Phasenbreiten bilden, und denen ein Teil des Sauerstoffs entzogen und teilweise durch Stickstoff ersetzt ist. In Betracht gezogene Druckschriften: Schweizerische Patentschrift Nr. 262 653; USA.-Patentschrift Nr. 2 631 115.PATENT CLAIM: Electrode for galvanic elements, especially collectors, characterized in that the electrode is made of sintered oxides of the metals III., IV., V. and VIII. Group of the Periodic Table of the Elements exists, insofar as they are stable nitrides or nitrogen inclusion phases with more or less form large phase widths, and from which some of the oxygen is withdrawn and some is replaced by nitrogen. Publications considered: Swiss U.S. Patent No. 262,653; U.S. Patent No. 2,631,115.
DES42979A 1955-03-09 1955-03-09 Electrode for galvanic elements Pending DE1054132B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES42979A DE1054132B (en) 1955-03-09 1955-03-09 Electrode for galvanic elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES42979A DE1054132B (en) 1955-03-09 1955-03-09 Electrode for galvanic elements

Publications (1)

Publication Number Publication Date
DE1054132B true DE1054132B (en) 1959-04-02

Family

ID=7484553

Family Applications (1)

Application Number Title Priority Date Filing Date
DES42979A Pending DE1054132B (en) 1955-03-09 1955-03-09 Electrode for galvanic elements

Country Status (1)

Country Link
DE (1) DE1054132B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH262653A (en) * 1941-03-07 1949-07-15 Barry Brennan Joseph Method of manufacturing electrodes.
US2631115A (en) * 1949-08-06 1953-03-10 Manganese Battery Corp Electrodes for electrochemical cells

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH262653A (en) * 1941-03-07 1949-07-15 Barry Brennan Joseph Method of manufacturing electrodes.
US2631115A (en) * 1949-08-06 1953-03-10 Manganese Battery Corp Electrodes for electrochemical cells

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