DE1015875B - Permanently gas-tight sealed alkaline accumulator - Google Patents

Permanently gas-tight sealed alkaline accumulator

Info

Publication number
DE1015875B
DE1015875B DEA21065A DEA0021065A DE1015875B DE 1015875 B DE1015875 B DE 1015875B DE A21065 A DEA21065 A DE A21065A DE A0021065 A DEA0021065 A DE A0021065A DE 1015875 B DE1015875 B DE 1015875B
Authority
DE
Germany
Prior art keywords
separator
gas
sealed alkaline
negative electrode
accumulator
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
DEA21065A
Other languages
German (de)
Inventor
Franz Bronstert
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.)
Accumulatoren Fabrik AG
Original Assignee
Accumulatoren Fabrik AG
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 Accumulatoren Fabrik AG filed Critical Accumulatoren Fabrik AG
Priority to DEA21065A priority Critical patent/DE1015875B/en
Publication of DE1015875B publication Critical patent/DE1015875B/en
Pending 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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
    • H01M50/457—Separators, membranes or diaphragms characterised by the material having a layered structure comprising three or more layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
    • H01M50/454—Separators, membranes or diaphragms characterised by the material having a layered structure comprising a non-fibrous layer and a fibrous layer superimposed on one another
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cell Separators (AREA)

Description

Ständig gasdicht verschlossener alkalischer Akkumulator Es ist bekannt, zwecks Festlegung des Elektrolyts in gasdichten Akkumulatoren poröse Filter, vorzugsweise aus Textilien, anzuwenden, die einerseits durch ihre Saugfähigkeit als Träger des Elektrolyts dienen und andererseits auf Grund der in ihnen vorhandenen Hohlräume die Fähigkeit haben, die an der positiven Platte entstehenden Gase zur negativen Elektrode hindurchzulassen. Die Durchlässigkeit dieser Filter für die Gase ist je nach der Dichte der Gewebe sehr verschieden, wobei der Gasdurchtritt stets abhängig ist von der Druckdifferenz an den beiden Seiten des Filters.Permanently gas-tight sealed alkaline accumulator It is known for the purpose of fixing the electrolyte in gas-tight accumulators, porous filters, preferably from textiles, which on the one hand act as a carrier of the Electrolytes serve and on the other hand due to the cavities present in them have the ability to convert the gases produced on the positive plate to the negative To let the electrode through. The permeability of these filters for the gases is depending very different according to the density of the tissue, whereby the gas penetration always depends depends on the pressure difference on the two sides of the filter.

Ein Durchtritt der Gase bewirkt jedoch auf der negativen Elektrode zeitweise eine Abdeckung der für die elektrochemische Arbeitsleistung zur Verfügung stehenden Oberfläche durch die Gase selbst und ist deswegen unerwünscht. Dieser Nachteil wird auf Grund der vorliegenden Erfindung mittels eines Verbundseparators vermieden. Der Verbundseparator im Akkumulator gemäß der Erfindung besteht aus einer an sich bekannten vorbeschrieben Kombination eines porösen gasdurchlässigen Separators, insbesondere Textilscheiders, in Verbindung mit einer semipermeablen Folie, z. B. eine Folie aus regenerierter Cellulose. Zur Vermeidung einer Beschädigung dieser Folie durch die Elektroden selbst wird die Folie in der Mitte zwischen zwei Scheider eingebettet, gegebenenfalls in der Weise, daß bei Textilscheidern der Stoff einmal gefaltet und die Folie in die so entstandene Tasche eingelegt wird.However, a passage of the gases causes on the negative electrode at times a cover for the electrochemical work is available standing surface caused by the gases themselves and is therefore undesirable. This Disadvantage is due to the present invention by means of a composite separator avoided. The composite separator in the accumulator according to the invention consists of one previously known combination of a porous gas-permeable separator, in particular textile separator, in conjunction with a semi-permeable film, e.g. B. a film made from regenerated cellulose. To avoid damaging this Foil through the electrodes themselves will put the foil in the middle between two separators embedded, if necessary in such a way that in textile separators the fabric once folded and the film is inserted into the resulting pocket.

Die an der positiven Elektrode entstehenden Gasblasen können nicht durch die semipermeable Folie hindurchtreten und sind so gezwungen, entlang der Elektrodenfläche frei in den Raum zu entweichen, und können ohne Behinderung mit den Rückseiten der negativen Elektrode reagieren. Auch die Ränder und sonstige metallische Teile der negativen Elektrode, die nicht zur elektrochemischen Arbeitsleistung herangezogen sind, bewirken eine Umsetzung der Gase.The gas bubbles that develop on the positive electrode cannot pass through the semipermeable film and are thus forced to move along the Electrode surface to escape freely into the room, and can be used without hindrance the back of the negative electrode react. Also the edges and other metallic ones Parts of the negative electrode that are not used for electrochemical work cause the gases to be converted.

Der erfindungsgemäß zwischen Faserstoff eingebettete semipermeable Film besteht beispielsweise aus regenerierter Cellulose oder einem sonstigen elektroly tbeständigem Stoff.The semipermeable embedded between fibrous material according to the invention Film consists, for example, of regenerated cellulose or some other electrolyte Resistant fabric.

Claims (2)

PATENTANSPRÜCHE: 1. Ständig dicht verschlossener alkalischer Akkumulator, gekennzeichnet durch die Kombination, daß er in einem Gehäuse eine positive und eine negative Elektrode, einen saugfähigen Separator und einen kapillar festgelegten Elektrolyt sowie einen Gasraum besitzt, in welch letzterem Flächenteile der negativen Elektrode mit dem von der positiven Elektrode während der Ladung des Akkumulators erzeugten Gas reagieren können, und daß der Separator zur Erzielung einer guten Saugfähigkeit unter gleichzeitiger Dichtigkeit gegen durchtretende Gase, welch letztere hierdurch entlang der Oberfläche der positiven Elektrode in den Gasraum geführt werden, als Verbundseparator aus porösem aufsaugendetn Faserstoff-Material und einer semipermeablen Folie gebildet ist. PATENT CLAIMS: 1. Permanently tightly sealed alkaline accumulator, characterized by the combination that it has a positive and in one housing a negative electrode, an absorbent separator and a capillary set Has electrolyte and a gas space, in which the latter area parts the negative Electrode with that of the positive electrode while the battery is being charged generated gas can react, and that the separator to achieve a good Absorbency while at the same time being impermeable to penetrating gases, the latter thereby guided along the surface of the positive electrode into the gas space are, as a composite separator made of porous absorbent fibrous material and a semipermeable film is formed. 2. Akkumulator nach Anspruch 1, dadurch gekennzeichnet, daß die semipermeable Folie innerhalb einer Tasche, gebildet aus porösem aufsaugendem Faserstoff-Material, eingebettet ist. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 337 943, 343 705; britische Patentschrift Nr. 701678; USA.-Patentschriften Nr. 2 675 418, 2 696515.2. Accumulator according to claim 1, characterized in that the semipermeable film is embedded within a pocket formed from porous absorbent fibrous material. Considered publications: German Patent Specifications Nos. 337 943, 343 705; British Patent No. 701678; U.S. Patent Nos. 2,675,418, 2,696,515.
DEA21065A 1954-09-01 1954-09-01 Permanently gas-tight sealed alkaline accumulator Pending DE1015875B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA21065A DE1015875B (en) 1954-09-01 1954-09-01 Permanently gas-tight sealed alkaline accumulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA21065A DE1015875B (en) 1954-09-01 1954-09-01 Permanently gas-tight sealed alkaline accumulator

Publications (1)

Publication Number Publication Date
DE1015875B true DE1015875B (en) 1957-09-19

Family

ID=6924843

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA21065A Pending DE1015875B (en) 1954-09-01 1954-09-01 Permanently gas-tight sealed alkaline accumulator

Country Status (1)

Country Link
DE (1) DE1015875B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215789B (en) * 1958-11-21 1966-05-05 Union Carbide Corp Process for the production of a gas-tight sealed alkaline secondary element

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE343705C (en) *
DE337943C (en) * 1920-04-24 1921-06-11 Hermann Beckmann Dr Diaphragm made of paper or the like for primary and secondary elements and electrolytic cells
GB701678A (en) * 1950-04-04 1953-12-30 Yardney International Corp Improvements in or relating to secondary electric batteries
US2675418A (en) * 1952-03-21 1954-04-13 Henry B Nichols Electric storage battery and process of manufacture
US2696515A (en) * 1952-03-21 1954-12-07 Sonotone Corp Electric storage battery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE343705C (en) *
DE337943C (en) * 1920-04-24 1921-06-11 Hermann Beckmann Dr Diaphragm made of paper or the like for primary and secondary elements and electrolytic cells
GB701678A (en) * 1950-04-04 1953-12-30 Yardney International Corp Improvements in or relating to secondary electric batteries
US2675418A (en) * 1952-03-21 1954-04-13 Henry B Nichols Electric storage battery and process of manufacture
US2696515A (en) * 1952-03-21 1954-12-07 Sonotone Corp Electric storage battery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215789B (en) * 1958-11-21 1966-05-05 Union Carbide Corp Process for the production of a gas-tight sealed alkaline secondary element

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