DE439809C - Process for the treatment of charged negative lead sponge plates - Google Patents

Process for the treatment of charged negative lead sponge plates

Info

Publication number
DE439809C
DE439809C DEC35956D DEC0035956D DE439809C DE 439809 C DE439809 C DE 439809C DE C35956 D DEC35956 D DE C35956D DE C0035956 D DEC0035956 D DE C0035956D DE 439809 C DE439809 C DE 439809C
Authority
DE
Germany
Prior art keywords
plates
lead sponge
coating
negative lead
charged
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
DEC35956D
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.)
Chloride Electrical Storage Co Ltd
Original Assignee
Chloride Electrical Storage Co Ltd
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 Chloride Electrical Storage Co Ltd filed Critical Chloride Electrical Storage Co Ltd
Application granted granted Critical
Publication of DE439809C publication Critical patent/DE439809C/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/14—Electrodes for lead-acid accumulators
    • H01M4/16—Processes of manufacture
    • H01M4/22—Forming of electrodes
    • H01M4/23—Drying or preserving electrodes after forming
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/14—Electrodes for lead-acid accumulators
    • H01M4/16—Processes of manufacture
    • H01M4/22—Forming of electrodes
    • 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

Description

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AUSGEGEBEN AM 18. JANUAR 1927ISSUED ON JANUARY 18, 1927

Der Hauptzweck der vorliegenden Erfindung besteht darin, trockene geladene negative Polplatten für Bleischwefelsäureakkumulatoren herzustellen, die ihre Kapazität während verhältnismäßig langer Lagerperioden behalten. Gemäß der vorliegenden Erfindung werden die geladenen, auf gewöhnlichem Wege hergestellten feuchten negativen Platten aus den Behältern herausgenommen, in welchen sie auf elektrolytischem Wege reduziert worden sind. Sie werden in eine Lösung von Formaldehyd enthaltender Gelatine eingetaucht. Die Platten werden unmittelbar in einen Trockenofen übertragen, in welchem eine Erhitzung erfolgt und eine nicht oxydierende Atmosphäre vorhanden ist. Es muß darauf gesehen werden, daß während der Zeit, die zwischen dem Herausnehmen der Platten aus den Behältern bis zu ihrem Einbringen in den Trockenofen liegt, kein oder nahezu kein Trocknen stattfindet. Dies kann durch entsprechende Geschwindigkeit erreicht werden. Die Wirkung des Eintauchens der Platten in die Lösung besteht darin, sie oberflächlich mit der Lösung zu bedecken; wenn die Platten trocken aus dem Ofen entfernt worden sind, behalten sie einen Überzug oder eine oberflächliche Imprägnierung. Der Ofen ist eine Vorrichtung, um die Platten der Erhitzung in einer reduzierenden oder nicht oxydierenden Atmosphäre zu unterwerfen, die gewöhnlich Dampf ist. Das für den Überzug der Platten \rerwendete Material ist ein die Oxydation verhinderndes Mittel, \velches einen Verlust der Kapazität selbst für verhältnismäßig lange Perioden verhindert. Das die Oxydation verhindernde Material ist in Elektrolyten löslich, so daß, wenn die Platten in einer Akkumulatorenbatterie benutzt werden, keine schädliche \Virkung entstehen kann. Gelatine ist ein Beispiel eines die Oxydation verhindernden Materials, das in Elektrolyten löslich ist; jedoch ist die Erfindung keineswegs auf die Verwendung eines solchen Materials beschränkt. Der beigefügte Formaldehyd dient zur Haltbarmachung der Gelatine und zur Erhöhung ihrer Wasserdichtigkeit. Die so hergestellte Schicht widersteht der Einwirkung der atmosphärischen Feuchtigkeit. Gute Ergebnisse wurden durch Verwendung einer Lösung erzielt, die aus fünf Gewichtsprozenten Gelatine in Wasser besteht, welchem 5 Volumprozente einer 4oprozentigen Lösung- von Formaldehyd zugesetzt worden sind. Jedoch sind diese Verhältniszahlen nicht notwendig, und man hat auch gute Ergebnisse durch Verwendung tiner Lösung von il'r, Prozent GeIa-The main purpose of the present invention is to produce dry charged negative pole plates for lead sulfuric acid accumulators which will retain their capacity during relatively long periods of storage. According to the present invention, the charged wet negative plates produced in the usual way are taken out of the containers in which they have been electrolytically reduced. They are immersed in a solution of gelatin containing formaldehyde. The plates are immediately transferred to a drying oven in which heating takes place and a non-oxidizing atmosphere is present. Care must be taken that there is no or almost no drying during the time between the removal of the panels from the containers and their introduction into the drying oven. This can be achieved through appropriate speed. The effect of immersing the plates in the solution is to cover them superficially with the solution; when the panels are removed dry from the oven they retain a coating or surface impregnation. The furnace is a device for subjecting the plates to heating in a reducing or non-oxidizing atmosphere, which is usually steam. The r for the coating of the plates \ erwendete material is an oxidation-preventing agent, \ velches a loss of capacity prevented even for relatively long periods. The material preventing oxidation is soluble in electrolytes, so that if the plates are used in a storage battery, no harmful effects can arise. Gelatin is an example of an anti-oxidation material that is soluble in electrolytes; however, the invention is in no way limited to the use of such material. The added formaldehyde is used to preserve the gelatine and to increase its water resistance. The layer produced in this way resists the effects of atmospheric moisture. Good results have been achieved by using a solution which consists of five percent by weight gelatin in water, to which 5 percent by volume of a 4 percent solution of formaldehyde has been added. However, these ratios are not necessary, and good results have been obtained using a tine solution of i l' r , percent gela-

tine; der Formadehyd kann auch weggelassen oder selbst durch ein Äquivalent ersetzt werden.tine; the formaldehyde can also be omitted or even replaced by an equivalent will.

Das Produkt ist eine trockene geladene negative Polplatte für Akkumulatorenbatterien, die schwammiges Blei enthält und mit .einem die Oxydation verhindernden Überzug, der im Elektrolyten löslich ist, versehen ist.The product is a dry charged negative pole plate for accumulator batteries, which contains spongy lead and has an anti-oxidation coating, which is soluble in the electrolyte is provided.

Claims (6)

Patentansprüche:Patent claims: 1. Verfahren zur Behandlung gelade-. ner negativer Bleischwammplatten, mn sie ohne Kapazitätsverlust zu trocknen, gekennzeichnet durch Überziehen ■ der geladenen nassen Platten mit einem im Elektrolyten löslichen, die Oxydation verhindernden Überzug und durch Erhitzen der so behandelten Platten in einer nicht oxydierenden Atmosphäre.1. Method of treatment loaded. ner negative lead sponge plates, mn them to dry without loss of capacity, characterized by overlaying ■ the charged wet plates with a coating that is soluble in the electrolyte and prevents oxidation and by heating the panels treated in this way in a non-oxidizing atmosphere. 2. Verfahren nach Anspruch 1, dadurch2. The method according to claim 1, characterized gekennzeichnet, daß die nassen aufgeladenen Platten in eine Gelatinelösung eingetaucht und dann in einer nicht oxydierenden Atmospiiäre der Erhitzung unterworfen werden.characterized in that the wet charged plates are immersed in a gelatin solution and then subjected to heating in a non-oxidizing atmosphere. 3. Verfahren nach Anspruch 1 und 2, gekennzeichnet durch die Verwendung einer Formaldehyd enthaltenden Gelatinelösung. 3. The method according to claim 1 and 2, characterized by the use a gelatin solution containing formaldehyde. 4. Trockene geladene negative Bleischwammplatte für Akkumulatoren, dadurch gekennzeichnet, daß die Platte mit einem die Oxydation verhindernden, im Elektrolyten lösbaren Überzug versehen ist.4. Dry charged negative lead sponge plate for accumulators, thereby characterized in that the plate is provided with a coating which prevents oxidation and is soluble in the electrolyte is. 5. Bleischwammplatte nach Anspruch 4, dadurch gekennzeichnet, daß sie einen Überzug aus Gelatine besitzt.5. lead sponge sheet according to claim 4, characterized in that it has a Has a gelatin coating. 6. Bleischwammplatte nach Anspruch 4, dadurch gekennzeichnet, daß sie einen Überzug aus Gelatine und Formaldehyd besitzt.6. lead sponge sheet according to claim 4, characterized in that it has a Has a gelatin and formaldehyde coating.
DEC35956D 1924-12-15 1925-01-01 Process for the treatment of charged negative lead sponge plates Expired DE439809C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30146/24A GB239754A (en) 1924-12-15 1924-12-15 Improvements in electric accumulators

Publications (1)

Publication Number Publication Date
DE439809C true DE439809C (en) 1927-01-18

Family

ID=10303039

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC35956D Expired DE439809C (en) 1924-12-15 1925-01-01 Process for the treatment of charged negative lead sponge plates

Country Status (3)

Country Link
DE (1) DE439809C (en)
FR (1) FR591225A (en)
GB (1) GB239754A (en)

Also Published As

Publication number Publication date
GB239754A (en) 1925-09-17
FR591225A (en) 1925-06-30

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