DE464959C - Solution electrode for primary and secondary elements made of zinc or cadmium - Google Patents

Solution electrode for primary and secondary elements made of zinc or cadmium

Info

Publication number
DE464959C
DE464959C DEG68637D DEG0068637D DE464959C DE 464959 C DE464959 C DE 464959C DE G68637 D DEG68637 D DE G68637D DE G0068637 D DEG0068637 D DE G0068637D DE 464959 C DE464959 C DE 464959C
Authority
DE
Germany
Prior art keywords
zinc
cadmium
primary
secondary elements
elements made
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
DEG68637D
Other languages
German (de)
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.)
LEOPOLD GRAEFENBERG DR
Original Assignee
LEOPOLD GRAEFENBERG DR
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 LEOPOLD GRAEFENBERG DR filed Critical LEOPOLD GRAEFENBERG DR
Priority to DEG68637D priority Critical patent/DE464959C/en
Application granted granted Critical
Publication of DE464959C publication Critical patent/DE464959C/en
Expired legal-status Critical Current

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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
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy coatings
    • 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
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Electrolytic Production Of Metals (AREA)

Description

Lösungselektrode für Primär- und Sekundär-Elemente aus Zink oder Cadmium Es ist bekannt, bei Primär- und Sekundär-Elementen als negative Elektroden Metalle zu verwenden, die bei der Entladung des Elementes in Lösung gehen. Als solche Metalle dienen vorzugsweise Zink und Cadmium, die ent-,v eder als kompakte Elektroden oder in Form von Niederschlägen auf einen metallischen Träger zur Anwendung kommen. Als metallische Träger werden Bleche, Rahmen oder Netze verwendet, letztere besonders dann, wenn höhere Stromdichten auftreten. Diese Träger werden vorzugsweise aus solchen Metallen hergestellt, die im Elektrolyten unlöslich sind, wie beispielsweise Gold, Platin, Silber. Man hat u. a. Elektroden hergestellt, bei denen man auf einem anderen Metall, beispielsweise Eisen, ein Edelmetall, beispielsweise Silber, niedergeschlagen hat. Alle diese Metalle sind verhältnismäßig kostspielig. Es hat sich nun gezeigt, daß man einen brauchbaren Träger für Cadmium- und Zinkniederschläge dadurch erhalten kann, daß man verzinntes Eisen, insbesondere in der Form von Netzen, verwendet. Derartige Elektroden sind verhältnismäßig billig und leicht herstellbar und haben den Vorteil, daß sich auf ihnen Cadmium oder Zink sehr bequem abscheiden lassen. Die Niederschläge werden alsdann in bekannter Weise amalgamiert. Es ist zwar bekannt, für Lösungselektroden Träger aus Eisen zu verwenden, die nachträglich vernickelt werden. Derartige Überzüge aus Nickel haben jedoch den Nachteil, daß das 'Nickel sich nicht amalgamiert, so daß also bei der Entladung der Elektrode das Quecksilber, das beim Inlösunggehen des Zinks frei wird, nicht von der Elektrode aufgenommen werden kann, sondern zu Boden fällt. Dieses OOuecksilber kann bei der darauffolgenden Ladung nicht wieder auf der Zinkelektrode niedergeschlagen werden. Im Gegensatz hierzu hat das Zinn die Eigenschaft, sich leicht zu amalgamieren. Es ist daher in der Lage, das Quecksilber, das beim Inlösungb hen des Zinks frei wird, ganz oder zum größten Teil aufzunehmen, so daß es bei der darauffolgenden Ladung zur Amalgamierung des Zinks zur Verfügung steht.Solution electrode for primary and secondary elements made of zinc or cadmium It is known that metals are used as negative electrodes in primary and secondary elements to use, which go into solution when the element is discharged. As such metals Zinc and cadmium are preferably used, either as compact electrodes or come in the form of precipitates on a metallic carrier used. as metal supports, sheets, frames or nets are used, the latter especially when higher current densities occur. These carriers are preferably made of such Metals that are insoluble in the electrolyte, such as gold, Platinum, silver. One has, inter alia. Electrodes made where one is on another Metal, for example iron, a noble metal, for example silver, deposited Has. All of these metals are relatively expensive. It has now been shown that a useful carrier for cadmium and zinc precipitates is thereby obtained It is possible to use tinned iron, especially in the form of nets. Such electrodes are relatively cheap and easy to manufacture and have the advantage that cadmium or zinc can be deposited very easily on them. The precipitates are then amalgamated in a known manner. It is well known Use iron supports for solution electrodes, which are subsequently nickel-plated will. However, such coatings made of nickel have the disadvantage that the 'nickel does not amalgamate, so that when the electrode is discharged, the mercury, which is released when the zinc dissolves, is not absorbed by the electrode but falls to the ground. This mercury can be used in the following Charge cannot be deposited again on the zinc electrode. In contrast for this purpose, the tin has the property of amalgamating itself easily. It is therefore in able to completely or completely remove the mercury that is released when the zinc is dissolved for the most part, so that there is amalgamation in the subsequent charge of zinc is available.

Claims (1)

PATENTANSPRUCH: Lösungselektrode für Primär- und Sekundär-Elemente aus Zink öder Cadmium, die auf einen metallischen Träger niedergeschlagen sind, dadurch gekennzeichnet, daß der metallische Träger aus verzinntem Eisen besteht.PATENT CLAIM: Solution electrode for primary and secondary elements made of zinc or cadmium deposited on a metallic carrier, characterized in that the metallic carrier consists of tinned iron.
DEG68637D 1926-11-10 1926-11-10 Solution electrode for primary and secondary elements made of zinc or cadmium Expired DE464959C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG68637D DE464959C (en) 1926-11-10 1926-11-10 Solution electrode for primary and secondary elements made of zinc or cadmium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG68637D DE464959C (en) 1926-11-10 1926-11-10 Solution electrode for primary and secondary elements made of zinc or cadmium

Publications (1)

Publication Number Publication Date
DE464959C true DE464959C (en) 1928-08-31

Family

ID=7134451

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG68637D Expired DE464959C (en) 1926-11-10 1926-11-10 Solution electrode for primary and secondary elements made of zinc or cadmium

Country Status (1)

Country Link
DE (1) DE464959C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058590B (en) * 1958-12-04 1959-06-04 Accumulatoren Fabrik Ag Method of making a cadmium electrode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058590B (en) * 1958-12-04 1959-06-04 Accumulatoren Fabrik Ag Method of making a cadmium electrode

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