DE671308C - Process for the production of porous hard rubber tubes with high percolation speed for batteries - Google Patents

Process for the production of porous hard rubber tubes with high percolation speed for batteries

Info

Publication number
DE671308C
DE671308C DEW84435D DEW0084435D DE671308C DE 671308 C DE671308 C DE 671308C DE W84435 D DEW84435 D DE W84435D DE W0084435 D DEW0084435 D DE W0084435D DE 671308 C DE671308 C DE 671308C
Authority
DE
Germany
Prior art keywords
batteries
hard rubber
production
porous hard
rubber tubes
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
DEW84435D
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.)
LOUISE WILDERMAN GEB VON NORDE
Original Assignee
LOUISE WILDERMAN GEB VON NORDE
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 LOUISE WILDERMAN GEB VON NORDE filed Critical LOUISE WILDERMAN GEB VON NORDE
Priority to DEW84435D priority Critical patent/DE671308C/en
Application granted granted Critical
Publication of DE671308C publication Critical patent/DE671308C/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
    • 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
    • H01M50/411Organic material
    • H01M50/414Synthetic resins, e.g. thermoplastics or thermosetting resins
    • 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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Description

Verfahren zur Herstellung von porösen Hartgummischeidern mit hoher Perkolationsgeschwind'igkeit für Batterien Die Erfindung bezieht sich auf ein Verfähren zur Herstellung von. porösen H,artgummischeidern mit hoher Perkolationsgescb:windigkeit für Batterien und besteht darin, @daß der Scheider mit stark verdünnter Wasserglas= Lösung unter Vakuum gefüllt und daran mit Säure behandelt wird. Die sich ausscheidende Ballerte Kieselsäure, die die Kapillaren des Scheiders nicht wesentlich verengt, beeinflußt die Oberflächeneigenschaften derselben. im Sinne einer schnelleren Benetzung durch die Badflüssigkeit der Batterie.Process for the production of porous hard rubber mantles with high Percolation speed for batteries The invention relates to a method for production of. porous H, kind of rubber tubes with high percolation rate: windiness for batteries and consists in @ that the separator with strongly diluted water glass = Solution is filled under vacuum and then treated with acid. The retiring Balled silica that does not significantly narrow the capillaries of the separator, affects the surface properties of the same. in the sense of faster wetting by the bath liquid of the battery.

Es ist bekannt, bei Holzscheidern für Akkumulatoren die Poren mit Silikagel völlig ;auszufüllen, um das Hindurchgehen von Batterieschlamm, durch die Poren des Scheiders zu verhindern. Der Widerstand des Holzscheiders wird dadurch vergrößert und die Perkolationsgeschwindigkeit durch den Scheider ,ganz erheblich herabgesetzt. Es tritt also die entgegengesetzte Wirkung ein wie bei der Erfindung.It is known to use the pores in wood separators for accumulators Silica gel completely; to be filled in to prevent battery sludge from passing through the To prevent pores of the separator. The resistance of the wood separator is thereby increased and the percolation speed through the separator, quite considerably degraded. The opposite effect occurs as in the case of the invention.

Demgegenüber wird durch ,das Verfahren gemäß der Erfindung die Perkolationsgeschwindigkeit des Hartgummischeiders eine blitzartige, und der elektrische Widerstand erreicht sofort praktisch seinen Mindestwert, obgleich derartige Körper an sich durch wäß rige Lösungen vergleichsweise schwer benetzt werden und bei Einsetzung in die verdünnte Schwefelsäure von Akkumulatorenzellen ,als Isolator wirken, während es bei .den bekannten Holzseparatoren viele Wochen dauert, bis ein im übrigen immer noch hochliegender Mindestwert erreicht wird.In contrast, the method according to the invention, the percolation rate of the hard rubber scissors a lightning-like, and the electrical resistance is reached immediately practically its minimum value, although such bodies in themselves water Remaining solutions are comparatively difficult to wet and when used in the diluted Sulfuric acid from accumulator cells, act as an insulator, while it is known wood separators takes many weeks until one is still elevated Minimum value is reached.

Die Erfindung ermöglicht es, das Einsetzen des Scheiders in den Elektrolyten der Batterie in trockenem Zustande vorzunehmen, was mit Holzscheidern nicht möglich ist. Trotzdem wird ein ,äußerst kleiner Wert des elektrischen Widerstandes in sehr kurzer Zeit erreicht, so daß, die Batterie von Anfang an sofort unter günstigen Bedingungen ,arbeitet, was bei Holzscheidern z. B. erst nach sehr langer Zeit zu erreichen ist.The invention enables the separator to be inserted into the electrolyte the battery in a dry state, which is not possible with wood separators is. Even so, an extremely small value of the electrical resistance becomes very reached a short time, so that, the battery from the beginning immediately under favorable Conditions, what works at wood separators z. B. only after a very long time is to achieve.

Die Erfindung beruht auf der Erkenntnis, daß die geringe Perkolationsgeschwindigkeit der bekannten porösen. Körper daher kommt, daß die Badflüssigkeit nicht schnell genug in die Poren eindringt und die Luft ;a:us diesen Poren nicht schnell genug verdrängt; vielmehr verbleibt die Luft innerhalb der Poren, bis sie in der Badfl:üssigkeit gelöst ist und mit der ,außerhalb des porösen Körpers befindlichen Flüssigkeit gemischt wurde. - Dies dauert -um so länger, je feiner die Kapillaren des porösen Körpers sind.The invention is based on the knowledge that the low percolation rate the well-known porous. Body comes from the fact that the bath liquid does not go quickly penetrates enough into the pores and the air; a: us these pores not fast enough repressed; rather, the air remains inside the pores until it is in the bath liquid is dissolved and mixed with the liquid located outside the porous body became. The finer the capillaries of the porous body, the longer this takes are.

Es ist ,auch festgestellt worden, daß ,die Geschwindigkeit, mit der die Badflüssigkeit in die Poren verschiedener Körper gleicher Pörosität eindringen -kanm; in großem Maße von den Oberfl.ächenspannüngseigenschaften der Badflüssigkeit in Berührung mit der Substanz des porösen Körpers abhängt und von der Fähigkeit der Badflüssigkeit, den Werkstoff des porösen Körpers zu benetzen..It has also been found that, the rate at which the bath liquid in the pores of different bodies the same Porosity penetrate -kanm; to a large extent on the surface tension properties of the Bath liquid in contact with the substance of the porous body depends on and from the ability of the bath liquid to wet the material of the porous body ..

Wenn die Badflüssigkeit den porösen Körper nicht benetzt; was bei porösem Hartgummi der Fall ist, ist es sehr schwierig, eine Ausfüllung desselben mit der Flüssigkeit zu erzielen. In manchen Fällen wirkt daher ein Scheider ;aus diesem Stoffe beim Eintauchen in die Flüssigkeit anfänglich :als Isolator. Diese Schwierigkeiten werden durch die Erfindung behoben, da die Benetzharkeit der Kapillaren des porösen - Hartgummikörpers wesentlich erhöht wird.When the bath liquid does not wet the porous body; what at porous hard rubber is the case, it is very difficult to fill it to achieve with the liquid. In some cases, therefore, a separator has an effect this substance when immersed in the liquid initially: as an insulator. These Difficulties are eliminated by the invention, since the wettability of the capillaries of the porous - hard rubber body is significantly increased.

Claims (1)

PATEINTTANSPRUCH: Verfahren zur Herstellung von porösen Hartgummischeidern mit hoher Perkolationsgeschwindigkeit für Batterien, dadurch. gekennzeichnet, daß der Scheider rnit stark verdünnter Wasserglaslösung unter Vakuum gefüllt und dann mit Säure behandelt wird.PATEINTTLEGANT: Process for the production of porous hard rubber sheaths with high percolation speed for batteries, thereby. marked that the separator is filled with highly diluted water-glass solution under vacuum and then treated with acid.
DEW84435D 1929-12-08 1929-12-08 Process for the production of porous hard rubber tubes with high percolation speed for batteries Expired DE671308C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW84435D DE671308C (en) 1929-12-08 1929-12-08 Process for the production of porous hard rubber tubes with high percolation speed for batteries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW84435D DE671308C (en) 1929-12-08 1929-12-08 Process for the production of porous hard rubber tubes with high percolation speed for batteries

Publications (1)

Publication Number Publication Date
DE671308C true DE671308C (en) 1939-02-04

Family

ID=7611946

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW84435D Expired DE671308C (en) 1929-12-08 1929-12-08 Process for the production of porous hard rubber tubes with high percolation speed for batteries

Country Status (1)

Country Link
DE (1) DE671308C (en)

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