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DE407122C - Dry element with chemically pure zinc electrodes - Google Patents

Dry element with chemically pure zinc electrodes

Info

Publication number
DE407122C
DE407122C DEW64809D DEW0064809D DE407122C DE 407122 C DE407122 C DE 407122C DE W64809 D DEW64809 D DE W64809D DE W0064809 D DEW0064809 D DE W0064809D DE 407122 C DE407122 C DE 407122C
Authority
DE
Germany
Prior art keywords
zinc
chemically pure
pure zinc
electrodes
dry element
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
DEW64809D
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEW64809D priority Critical patent/DE407122C/en
Application granted granted Critical
Publication of DE407122C publication Critical patent/DE407122C/en
Expired legal-status Critical Current

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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
    • H01M4/38Selection of substances as active materials, active masses, active liquids of elements or alloys
    • 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)
  • Battery Electrode And Active Subsutance (AREA)

Description

Trockenelement mit chemisch reinen Zinkelektroden. Die Verwendung von Zinkelektroden für Trockenelemente ist an und für sich bekannt. Jedoch haben diese Elektroden aus handelsüblichem Zink sehr große Nachteile. Sie werden durch den Elektrolyten auch bei Nichtgebrauch in einer Art und Weise angegriffen, so daß sie bald zugrunde gehen. Das verwendete Zinkblech enthält nämlich an Verunreinigungen hauptsächlich Eisen, Zinn und Blei. Diese Verunreinigungen bewirken an den Elektroden das Auftreten sogenannter »Kurzschlußelemente«, die eine Auflösung und Durchlöcherung der Elektroeden in kurzer Zeit herbeiführen. Dieser Übelstand tritt auch auf bei den fertiggestellten lagernden Batterien, ohne daß sie benutzt werden. Die Lagerfähigkeit ist also auch eine äußerst beschränkte. Noch größer sind diese Übelstände, wenn das Element sich im Gebrauch befindet.Dry element with chemically pure zinc electrodes. The usage of zinc electrodes for dry elements is known per se. However have these electrodes made of commercially available zinc have very great disadvantages. You will go through attacked the electrolyte even when not in use in such a way that they will soon perish. The zinc sheet used contains impurities mainly iron, tin and lead. These impurities affect the electrodes the appearance of so-called "short-circuit elements", which lead to dissolution and perforation of the electroedas in a short time. This evil also occurs the completed batteries in storage without being used. The shelf life is therefore also an extremely limited one. These evils are even greater if the element is in use.

Man hat nun auf verschiedene Weise versucht, die Lagerfähigkeit und Gebrauchsdauer der Trockenelemente mit Zinkelektroden zu erhöhen. Aber eine wirklich unbegrenzte Lagerfähigkeit hat man bisher noch nicht erzielen können.Attempts have now been made in various ways to improve the shelf life and Increase the service life of the drying elements with zinc electrodes. But one really unlimited shelf life has not yet been achieved.

Es ist daher bereits vorgeschlagen worden, chemisch reines Zink als Elektroden für Trockenelemente zu verwenden. Indessen konnte dieser Vorschlag keine praktische Bedeutung gewinnen, da das in bekannter Weise hergestellte chemisch reine Zink fast unerschwinglich teuer ist.It has therefore already been proposed to use chemically pure zinc as a To use electrodes for dry elements. However, this proposal could not gain practical importance, since the chemically pure produced in a known manner Zinc is almost prohibitively expensive.

Vorliegende Erfindung besteht darin, daß das chemisch reine Zink für die Zinkelektroden auf dem Wege der Vakuumdestillation gewonnen wird. Wie oben erwähnt, enthält das bisher für Elektroden verwendete Zink unter anderem als Verunreinigungen Blei, Eisen und Zinn und ist somit als eine Legierung anzusprechen, die elektrolytisch sehr schnell angegriffen wird. Statt dieser Legierung, die bisher im Handel schlechthin als Zink angesprochen wurde, aber in Wirklichkeit kein reines Zink war, soll nun völlig reines Zink, .das elektrochemisch ganz andere und für die Verwendung als Elektrode in Trockenelementen wesentlich wertvollere Eigenschaften als das bisher verwendete verunreinigte Zink besitzt, als Elektrode verwendet werden. Dadurch sind die Nachteile der Trockenelemente, die in den Verunreinigungen des Zinks zu suchen sind, beseitigt.The present invention is that the chemically pure zinc for the zinc electrodes are obtained by vacuum distillation. As mentioned above, contains the zinc previously used for electrodes, among other things as impurities Lead, iron and tin and is thus to be addressed as an alloy that is electrolytic attacked very quickly. Instead of this alloy, which has so far been marketed par excellence when zinc was mentioned, but in reality it was not pure zinc, should now completely pure zinc, which is electrochemically completely different and for use as Electrode in dry elements has much more valuable properties than before used contaminated zinc can be used as an electrode. Thereby are the disadvantages of the dry elements, which look to the impurities of the zinc are eliminated.

Als weiterer Vorteil der Elektroden aus chemisch reinem Zink, das durch Destillation im Vakuum gewonnen wurde, gegenüber dem in bekannter Weise gewonnenen chemisch reinem Zink ergibt sich eine größere Widerstandsfähigkeit. Es besitzt ein grobkristallinisches Gefüge, das für die geringe Angreifbarkeit günstig ist.Another advantage of the electrodes made of chemically pure zinc, the was obtained by distillation in vacuo, compared to that obtained in a known manner chemically pure zinc results in greater resistance. It owns a Coarsely crystalline structure, which is favorable for the low vulnerability.

Claims (1)

PATENT-ANsPRUcH: Trockenelement mit chemisch reinen Zinkelektroden, dadurch gekennzeichnet, .daß die Zinkelektrode aus auf dem Wege der Vakuumdestillation hergestelltem Zink besteht, welches frei von Eisen-, Zinn-und Bleiverunreinigungen ist.PATENT CLAIM: Dry element with chemically pure zinc electrodes, characterized in .that the zinc electrode is made by vacuum distillation Made of zinc, which is free from iron, tin and lead impurities is.
DEW64809D 1923-10-24 1923-10-24 Dry element with chemically pure zinc electrodes Expired DE407122C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW64809D DE407122C (en) 1923-10-24 1923-10-24 Dry element with chemically pure zinc electrodes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW64809D DE407122C (en) 1923-10-24 1923-10-24 Dry element with chemically pure zinc electrodes

Publications (1)

Publication Number Publication Date
DE407122C true DE407122C (en) 1924-12-06

Family

ID=7607205

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW64809D Expired DE407122C (en) 1923-10-24 1923-10-24 Dry element with chemically pure zinc electrodes

Country Status (1)

Country Link
DE (1) DE407122C (en)

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