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DE749314C - Manufacture of separators from superimposed layers of glass wool for galvanic elements, especially electrical accumulators - Google Patents

Manufacture of separators from superimposed layers of glass wool for galvanic elements, especially electrical accumulators

Info

Publication number
DE749314C
DE749314C DE1936749314D DE749314DA DE749314C DE 749314 C DE749314 C DE 749314C DE 1936749314 D DE1936749314 D DE 1936749314D DE 749314D A DE749314D A DE 749314DA DE 749314 C DE749314 C DE 749314C
Authority
DE
Germany
Prior art keywords
glass wool
separators
lines
manufacture
superimposed layers
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
DE1936749314D
Other languages
German (de)
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 filed Critical
Application granted granted Critical
Publication of DE749314C publication Critical patent/DE749314C/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
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/08Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
    • H01B3/084Glass or glass wool in binder
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/431Inorganic material
    • H01M50/434Ceramics
    • H01M50/437Glass
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/44Fibrous material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/31Textiles threads or artificial strands of filaments
    • 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)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Cell Separators (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Herstellung von Scheidern, aus übereinanderliegenden Glaswollschichten für galvanische Elemente, insbesondere elektrische Akkumulatoren. Erfindungsgemäß werden die Scheider in der Weise hergestellt, daß einzelne verfilzte Schichten aus ungeordnet zusammenliegender, vorzugsweise kurzfädiger Glaswolle unter Anwendung des in der Patentschrift 600 875 beschriebenen Verfahrens mit Lösungen von Gummi, vorzugsweise in Benzin, mit den üblichen Vulkanisationsmitteln behandelt, sodann aufeinandergelegt, zusammengepreßt und anschließend vulkanisiert werden. Nach der Erfindung taucht man vorzugsweise kürzte Glaswolle in gleichmäßigen SchichtenThe present invention relates to a method for the manufacture of separators, made of superimposed layers of glass wool for galvanic elements, in particular electric accumulators. According to the invention, the separators are made in such a way that individual matted Layers of disordered, preferably short-thread glass wool underneath Application of the method described in patent specification 600 875 with solutions of Rubber, preferably in gasoline, treated with the usual vulcanizing agents, then placed on top of one another, pressed together and then vulcanized. According to the invention, it is preferable to dive short Glass wool in even layers

von lose gemessen 1,5 mm in eine 2°/oige Benzin-Gummi-Lösung oder wäßrige Gummidispersion, der z. B. 30 % Schwefel, auf Gummi gerechnet, und andere Füllstoffe sowie Beschleuniger zugegeben sind. Hierauf läßt man die Gummilösung bzw. Dispersion einige Zeit abtropfen und trocknet die einzelnen Schichten auf einem Drahtnetz. Etwa vier solche Schichten werden nach dem vollständigen Trocknen aufeinandergelegt, in einer Spindelpresse auf etwa 1,2 mm heruntergedrückt und 30 Minuten bei 6 Atü vulkanisiert. Ein derartiger Scheider enthält etwa !3Ö °/o Gummi und 6.5 % Schwefel. Dieser Gummigehalt genügt, um den Scheider nach der Pressung zusammenzuhalten, ohne daß der elektrische Widerstand eines solchen Scheiders die zulässigen Grenzen überschreitet. Die Durchflußgeschwindigkeit ist hervorragend groß.of loosely measured 1.5 mm in a 2 ° / o strength gasoline rubber solution or rubber aqueous dispersion of z. B. 30% sulfur, calculated on rubber, and other fillers and accelerators are added. The rubber solution or dispersion is then allowed to drip off for some time and the individual layers are dried on a wire mesh. After complete drying, about four such layers are placed on top of one another, pressed down to about 1.2 mm in a screw press and vulcanized for 30 minutes at 6 atmospheres. Such a separator contains about 30% rubber and 6.5% sulfur. This rubber content is sufficient to hold the separator together after pressing without the electrical resistance of such a separator exceeding the permissible limits. The flow rate is extremely high.

Der technische Vorteil beruht darauf, daß Glaswollfäden in losem Zustande mit Gummilösung getränkt werden, dann vor der VuI-kanisation die einzelnen Platten, z. B. 4StUCk1 aufeinandergelegt und dann auf die gewünschte Stärke von z.B. 1,2mm gepreßt werden unter anschließender Vulkanisation. Auf diese Weise wird ein relativ dichter Glaswollscheider erhalten, der z. B. dem gefritteten Glasfilter ähnlich, in der Herstellung aber wesentlich einfacher und billigerThe technical advantage is based on the fact that glass wool threads are soaked in a loose state with rubber solution, then the individual plates, z. B. 4PCS 1 placed on top of each other and then pressed to the desired thickness of, for example, 1.2mm with subsequent vulcanization. In this way, a relatively tight glass wool separator is obtained, which z. B. similar to the fritted glass filter, but much easier and cheaper to manufacture

ist. Weiterhin zeichnet sich der Glaswollscheider nach der Erfindung dadurch aus, daß er als Separator in galvanischen Elementen, insbesondere elektrischen Sammlern, ohne Verwendung eines weiteren Scheiders, z. B. aus Holz oder porösem Gummi, benutzt werden kann, ohne daß die Gefahr besteht, daß die aktive Masse durchwächst und zu Kurzschlüssen Veranlassung gibt. Es können ) auf gleiche Weise auch dickere Platten hergestellt werden, die für Filter usw. in der chemischen Industrie Verwendung finden können.is. Furthermore, the glass wool separator according to the invention is characterized by that it is used as a separator in galvanic elements, especially electrical collectors, without using another separator, e.g. B. made of wood or porous rubber can be without the risk that the active mass grows through and to Causes short circuits. Thicker panels can also be produced in the same way that can be used for filters, etc. in the chemical industry.

Man hat bereits vorgeschlagen, Glaswoll-ί scheider für galvanische Elemente durch'Aufeinanderschichtung einzelner Lagen parallel gerichteter Glaswollfäden unter Verwendung von Klebemitteln herzustellen, und zwar derart, daß jede Lage nur eine einfache Glasfadenstärke besitzt. Dabei hat man die Fäden benachbarter Schichten nach Art des Sperrholzes senkrecht zueinander gerichtet oder die Fäden benachbarter Schichten im Winkel zueinander gelegt. Solche Scheider sind aber sehr schwierig herzustellen. Außerdem ist es erforderlich, verhältnismäßig viel Klebstoff zu verwenden, um einen einigermaßen festen inneren Zusammenhalt des Scheiders zu erzielen. Auch gelingt es bei diesen bekannten Scheidern nicht, die erforderliche Dichte zu erzielen, um bei der Anwendung in elektrischen Sammlern ein Durchwachsen der aktiven Masse und einen dadurch bedingten Kurzschluß zwischen den Elektrodenplatten zu vermeiden, ohne daß der elektrische Widerstand in unzulässiger Weise erhöht und damit der Scheider praktisch unbrauchbar wird. Um die Unterschiede hinsichtlich der Struktur des Scheiders, der nach dem Verfahren gemäß der Erfindung hergestellt ist, gegenüber den bekannten Glaswollscheidern deutlich erkennen zu lassen, sind in den Abb. ι und 2 der Scheider nach der Erfindung und der bekannte Scheider in zeichnerischen Mikroaufnahmen gegenübergestellt. Wie ersichtlich, sind bei dem Scheider nach der Erfindung gemäß der Abb. 1 die einzelnen Schichten völlig verfilzt und bestehen aus ungeordnet zusammenliegender, vorzugsweiseIt has already been proposed to use glass wool separators for galvanic elements by layering them on top of one another to produce individual layers of parallel glass wool threads using adhesives in such a way that that each layer only has a single glass thread thickness. That's where you have the strings Adjacent layers of the type of plywood directed perpendicular to each other or the threads of adjacent layers placed at an angle to each other. But such separators are very difficult to manufacture. In addition, a relatively large amount of glue is required to be used to achieve a reasonably firm internal cohesion of the separator. These known separators also fail to achieve the required density achieve a throughgrowth of the active when used in electrical collectors Avoid ground and a resulting short circuit between the electrode plates without the electrical Resistance increased in an unacceptable manner, making the separator practically unusable will. To understand the differences in the structure of the separator made by the method according to the invention can be clearly seen compared to the known glass wool separators are in the Fig. ι and 2 of the separator according to the invention and the known separator in graphic Photomicrographs juxtaposed. As can be seen, in the separator according to the invention according to Fig. 1, the individual Layers are completely matted and consist of randomly lying together, preferably

kurzfädiger Glaswolle. Demgegenüber liegen die Glaswollfäden bei dem bekannten Scheider gemäß der Abb. 2 parallel zueinander, und zwar derart, daß jede Lage nur eine einfache Glasfadenstärke besitzt. Die Fäden der einzelnen Lagen liegen nach Art des Sperrholzes senkrecht bzw. in einem Winkel zueinander. Wie bereits oben angedeutet, wird bei dem Scheider nach der Erfindung der besondere technische Vorteil erzielt, daß die aktive Masse der Akkumulatorenplatten nicht hindurchwachsen kann, da nämlich die wahllos gelagerten und hierbei verfilzten Fäden nicht beiseitegeschoben, sondern die Druckkräfte in Richtung der Fadenachse aufgefangen werden. Bei dem bekannten Scheider dagegen sind die Druckkräfte senkrecht zur Fadenachse gerichtet, so daß die Fäden sehr leicht ausweichen, ein Hindurchwachsen der Masse also nicht verhindert werden kann.short thread glass wool. In contrast, the glass wool threads in the known separator according to FIG. 2 are parallel to one another, in such a way that each layer has only a single glass thread thickness. The threads of the individual layers are perpendicular or at an angle to one another, like the plywood. As already indicated above, the separator according to the invention has the special technical advantage that the active mass of the accumulator plates cannot grow through, since the randomly stored and felted threads are not pushed aside, but the pressure forces in the direction of the thread axis are absorbed. In the known separator, on the other hand, the compressive forces are directed perpendicular to the thread axis, so that the threads give way very easily, so that the mass cannot be prevented from growing through.

Claims (2)

Patentanspruch:Claim: Verfahren zur Herstellung von Scheidern aus übereinanderliegenden Glaswollschichten, dadurch gekennzeichnet, daß einzelne verfilzte Schichten aus ungeordnet zusammenliegender, vorzugsweise kurzfädiger Glaswolle unter Anwendung des Verfahrens nach Patent 600 875 mit Lösungen von Gummi, vorzugs\veise in Benzin, mit den üblichen Vulkanisationsmitteln behandelt, sodann aufeinandergelegt, zusammengepreßt und anschließend vulkanisiert werden.Process for the production of separators from superimposed layers of glass wool, characterized in that individual matted layers of randomly lying together, preferably short-thread glass wool using the method according to patent 600 875 with solutions of rubber, preferably in Gasoline, treated with the usual vulcanizing agents, then placed on top of each other, pressed together and then vulcanized. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden:To distinguish the subject of the application from the state of the art, the granting procedure the following publications have been considered: deutsche Patentschriften .... Nr. 600 875, 624513 (insbesondere S. 1, Zeile 55 bis 62, und S. 2, Zeile 1 bis 3); französische Patentschrift ... Nr. 761 542 (insbesondere S. German patents .... No. 600 875, 624513 (especially p. 1, line 55 to 62, and p. 2, lines 1 to 3); French patent specification ... No. 761 542 (especially p. 2, Zeile 20 bis 31 und Zeile 85 bis 89);2, lines 20 to 31 and lines 85 to 89); USA.-Patentschrift Nr. 1 488 721U.S. Patent No. 1,488,721 (insbesondere Zeile 36 bis 38 und 48); britische Patentschrift Nr. 287 666.(especially lines 36 to 38 and 48); British Patent No. 287,666. Hierzu 1 Blatt Zeichnungen1 sheet of drawings LIN. GEDRUCKT IN DER REICHSDRUCKßRElLIN. PRINTED IN THE REICHSDRUCKßREl
DE1936749314D 1933-02-04 1936-06-30 Manufacture of separators from superimposed layers of glass wool for galvanic elements, especially electrical accumulators Expired DE749314C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA68541D DE600875C (en) 1933-02-04 1933-02-04 Process for making separators for electrical collectors from fibers

Publications (1)

Publication Number Publication Date
DE749314C true DE749314C (en) 1936-11-21

Family

ID=6439499

Family Applications (2)

Application Number Title Priority Date Filing Date
DEA68541D Expired DE600875C (en) 1933-02-04 1933-02-04 Process for making separators for electrical collectors from fibers
DE1936749314D Expired DE749314C (en) 1933-02-04 1936-06-30 Manufacture of separators from superimposed layers of glass wool for galvanic elements, especially electrical accumulators

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEA68541D Expired DE600875C (en) 1933-02-04 1933-02-04 Process for making separators for electrical collectors from fibers

Country Status (5)

Country Link
BE (2) BE401297A (en)
DE (2) DE600875C (en)
FR (2) FR767921A (en)
GB (1) GB412884A (en)
NL (1) NL36001C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE422382A (en) * 1933-02-04
USRE23644E (en) * 1945-03-14 1953-04-14 Battery separator
GB643603A (en) * 1948-03-17 1950-09-20 Oldham & Son Ltd Improvements in or relating to the manufacture of separators for electric accumulators

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1488721A (en) * 1921-02-08 1924-04-01 Waddell John Storage-battery cell and the like
GB287666A (en) * 1927-01-19 1928-03-29 D P Battery Company Ltd Improvements in or relating to storage batteries
FR761542A (en) * 1933-10-04 1934-03-21 Soie De Verre Separator for electric accumulators and its manufacturing process
DE600875C (en) * 1933-02-04 1934-08-02 Accumulatoren Fabrik Ag Process for making separators for electrical collectors from fibers
DE624513C (en) * 1934-06-09 1936-01-22 Comp Generale Electricite Separator for accumulators

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1488721A (en) * 1921-02-08 1924-04-01 Waddell John Storage-battery cell and the like
GB287666A (en) * 1927-01-19 1928-03-29 D P Battery Company Ltd Improvements in or relating to storage batteries
DE600875C (en) * 1933-02-04 1934-08-02 Accumulatoren Fabrik Ag Process for making separators for electrical collectors from fibers
FR761542A (en) * 1933-10-04 1934-03-21 Soie De Verre Separator for electric accumulators and its manufacturing process
DE624513C (en) * 1934-06-09 1936-01-22 Comp Generale Electricite Separator for accumulators

Also Published As

Publication number Publication date
FR767921A (en) 1934-07-27
BE401297A (en) 1934-03-31
BE422382A (en)
NL36001C (en) 1935-07-15
FR48583E (en) 1938-04-05
GB412884A (en) 1934-07-05
DE600875C (en) 1934-08-02

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