DE650621C - Sintered electrode for alkaline collectors with a sheet metal frame - Google Patents

Sintered electrode for alkaline collectors with a sheet metal frame

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Publication number
DE650621C
DE650621C DEA77961D DEA0077961D DE650621C DE 650621 C DE650621 C DE 650621C DE A77961 D DEA77961 D DE A77961D DE A0077961 D DEA0077961 D DE A0077961D DE 650621 C DE650621 C DE 650621C
Authority
DE
Germany
Prior art keywords
recesses
cake
sintered
sheet metal
metal frame
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
DEA77961D
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.)
Accumulatoren Fabrik AG
Original Assignee
Accumulatoren Fabrik AG
Publication date
Priority to DEA77961D priority Critical patent/DE650621C/en
Application granted granted Critical
Publication of DE650621C publication Critical patent/DE650621C/en
Expired 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
    • H01M4/64Carriers or collectors
    • H01M4/70Carriers or collectors characterised by shape or form
    • H01M4/80Porous plates, e.g. sintered carriers
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Powder Metallurgy (AREA)

Description

Pati:nt.-\.nsi'1u;cii :Pati: nt .- \. Nsi'1u; cii:

Sinterelektrode für alkalische Sammler mit Blechrahmengerüst, dadurch gekennzeichnet, daß der Sinterkuchen (A) durch in geeigneter Weise angeordnete Aussparungen (s) aufgeteilt ist, welche den Sinterkuchen ,nicht in der ganzen Dicke durchsetzen.Sinter electrode for alkaline collectors with a sheet metal frame structure, characterized in that the sinter cake (A) is divided up by suitably arranged recesses (s) which do not penetrate the sinter cake over the entire thickness.

I'on tleiii Patentsuchcr ist als der Erfinder angegeben worden:On tleiii patent seeker has been named as the inventor:

Dr. Fr'icdr.- August Schneider in Hagen, IVcstf.Dr. Fr'icdr.- August Schneider in Hagen, IVcstf.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

r.KHiit:CKr in dkiir.KHiit: CKr in dkii

Claims (1)

Es ist bekannt, daß man Elektroden für alkalische Sammler durch Zusammensinterung' verschiedener Metallpulver mit einem metallischen Gerüst herstellen kann, bei welchen Elektroden der Sinterkuchen und das metallische Gerüst gemeinsam zur. Stromableitung dienen.It is known that electrodes are used for alkaline collectors by sintering together 'different metal powders with a metallic one Can produce framework, in which electrodes the sintered cake and the metallic Scaffolding together. Serve current dissipation. Verwendet man ^.Is Gerüst einen Blechrahmen geeigneter Konstruktion an Stelle eines Siebgerüstes, welche Platten sich gegenüber letzterer Konstruktion durch große mechanische Festigkeit, insbesondere der zur Stromableitung dienenden Fahne, sowie durch Einfachheit der Herstellung auszeichnen, so zeigt es sich, daß der Sinterkuchen bei dem Imprägnierungsprozicß, durch welchen die aktive Masse in die Elektroden eingebracht wird, sehr leicht reißt. Der Grund dieser Erscheinung liegt in der starken Änderung des Ausdehnungs- bzw. Schrumpfungsvermögens sowie der elastischen Eigenschaften des Sinterküchens, welche die eingebrachte Masse dadurch hervorruft, daß sie infolge der K'apillarkräfte vorwiegend in den Ecken der feinen Hohlräume des Sinterkuchens eintrocknet und demzufolge die Umformbarkeit dieses letzteren stark herabsetzt.If one uses a sheet metal frame suitable construction in place of a sieve frame, which plates face each other the latter construction due to great mechanical strength, especially that of the Current dissipation flag, as well as characterized by simplicity of manufacture, so It turns out that the sinter cake in the impregnation process, through which the active When mass is introduced into the electrodes, it tears very easily. The reason for this phenomenon is the strong change the expansion and shrinkage capacity as well as the elastic properties of the sintered kitchen, which the introduced Mass is caused by the fact that it is predominantly in the corners as a result of the capillary forces the fine cavities of the sinter cake dries up and consequently the formability the latter greatly diminishes. Bei der Sinterelektrode für alkalische Sammler mit Blechrahmengerüst nach der Erfindung werden diese Nachteile dadurch vermieden, daß der Sinterkuchen durch in geeigneter Weise angebrachte Aussparungen aufgeteilt ist, welche 'den Sinterkuchen nicht in der ganzen Dicke durchsetzen. Infolge der Unterteilung des Sinterkuchens durch die Aussparungen reichen die in den einzelnen Partien auftretenden Kräfte nicht mehr aus, den Sinterkuchea zu zerreißen. Dadurch, daß die Aussparungen den Sinterkuchen nicht in der ganzen Dicke durchsetzen, bleibt eine Verschlechterung der Stromableitung vermieden. In the case of the sintered electrode for alkaline collectors with a sheet metal frame according to the Invention, these disadvantages are avoided in that the sintered cake by in appropriately attached recesses is divided, which 'the sinter cake is not prevail in the entire thickness. As a result of the subdivision of the sinter cake by the The forces occurring in the individual sections are no longer sufficient for recesses, to tear up the sintered kuchea. Because the recesses do not hold the sinter cake prevail in the entire thickness, a deterioration in the current conduction is avoided. Die Herstellung der Aussparungen kann z. B. in der Form durch Einlegen geeigneter Formstücke wie auch durch Ansägen der fertigen Platte erfolgen.The production of the recesses can z. B. in the form by inserting suitable fittings as well as by sawing the finished plate. Man hat bereits vorgeschlagen, in der aktiven Masse von Bleisammlerelektroden sog. Aussparungen anzubringen, um dadurch ein Reißen und Springen des Massekuchens während des Betriebes zu vermeiden. Demgegenüber besitzen die Aussparungen in den Sintcrclektroden gemäß der vorliegenden Erfindung eine grundsätzlich andere technische Wirkung. Sie schaffen nämlich überhaupt erst die Mög- 5a lichkcit, solche Elektroden herzustellen, bei denen zur Stabilisierung und Strofnableitung ein Blechrahmen Verwendung findet.It has already been proposed to use so-called lead collector electrodes in the active mass. To make recesses to thereby crack and crack of the mass cake during to avoid the operation. In contrast, the recesses in the sintered electrodes have according to the present invention a fundamentally different technical effect. This is because they create the possibility of producing such electrodes in the first place those for stabilization and current drainage a sheet metal frame is used. Die Zeichnung zeigt ein Ausführungshinspiel der Sinterelektrode nach der Erfindung.The drawing shows an exemplary embodiment the sintered electrode according to the invention. Wie aus Abb. 1 ersichtlich, ist der Sinterkuchen k. der von einem Blechrahmengerüst r umschlossen ist, durch die Aussparungen s aufgeteilt.As can be seen from Fig. 1, the sinter cake k. which is enclosed by a sheet metal frame structure r , divided by the recesses s. Abb. 2 zeigt in vergrößertem Maßstäbe, daß die Aussparungen den von dem Blechrahmen/' getragenen Massekuchen nicht in der ganzen Dicke durchsetzen.Fig. 2 shows, on an enlarged scale, that the recesses of the sheet metal frame / ' Do not push through worn mass cake in the entire thickness.
DEA77961D Sintered electrode for alkaline collectors with a sheet metal frame Expired DE650621C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA77961D DE650621C (en) Sintered electrode for alkaline collectors with a sheet metal frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA77961D DE650621C (en) Sintered electrode for alkaline collectors with a sheet metal frame

Publications (1)

Publication Number Publication Date
DE650621C true DE650621C (en) 1937-09-27

Family

ID=6947271

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA77961D Expired DE650621C (en) Sintered electrode for alkaline collectors with a sheet metal frame

Country Status (1)

Country Link
DE (1) DE650621C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544112A (en) * 1947-05-17 1951-03-06 Accumulatoren Fabriek Varta N Sintered battery plate and process of making
DE1028181B (en) * 1954-08-16 1958-04-17 Accumulatoren Fabrik Ag Process for the production of electrodes intended for alkaline accumulators
DE2757569A1 (en) * 1977-12-23 1979-06-28 Vartta Batterie Ag ELECTRODE FOR ALKALINE ACCUMULATORS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544112A (en) * 1947-05-17 1951-03-06 Accumulatoren Fabriek Varta N Sintered battery plate and process of making
DE1028181B (en) * 1954-08-16 1958-04-17 Accumulatoren Fabrik Ag Process for the production of electrodes intended for alkaline accumulators
DE2757569A1 (en) * 1977-12-23 1979-06-28 Vartta Batterie Ag ELECTRODE FOR ALKALINE ACCUMULATORS

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