DE1030407B - Separators for electrical accumulators, especially silver-zinc accumulators - Google Patents
Separators for electrical accumulators, especially silver-zinc accumulatorsInfo
- Publication number
- DE1030407B DE1030407B DEY182A DEY0000182A DE1030407B DE 1030407 B DE1030407 B DE 1030407B DE Y182 A DEY182 A DE Y182A DE Y0000182 A DEY0000182 A DE Y0000182A DE 1030407 B DE1030407 B DE 1030407B
- Authority
- DE
- Germany
- Prior art keywords
- accumulators
- separators
- zinc
- rays
- electrical
- 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
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
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
-
- 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
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
- H01M50/417—Polyolefins
-
- 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
- H01M50/411—Organic material
- H01M50/414—Synthetic resins, e.g. thermoplastics or thermosetting resins
- H01M50/423—Polyamide resins
-
- 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
Die Erfindung betrifft Scheider für elektrische Batterien aus filmbildendem thermoplastischem Material, das als Film entweder an sich halb durchlässig ist oder aber diese Eigenschaft durch Beigabe eines Ionenaustauschers erhält. Die Beigabe eines Ionenaustauschers ist bereits vorgeschlagen worden.The invention relates to separators for electric batteries made of film-forming thermoplastic material, which as a film is either semi-permeable in itself or this property through the addition of a Ion exchanger receives. The addition of an ion exchanger has already been proposed.
Es ist ferner bereits vorgeschlagen worden, thermoplastische Materialien zu bestrahlen und damit ihre Eigenschaften zu verändern. Die bisher berichteten Resultate sind nicht einheitlich; in einigen Fällen sollen Zersetzungen des Materials beobachtet worden sein, jedoch im allgemeinen wurde die Erhöhung der mechanischen Festigkeit, Verbesserung der chemischen Widerstandsfähigkeit und deren Wärmebeständigkeit durch die Bestrahlung festgestellt. Beispielsweise kann Polyäthylen durch Beschießung mit Elektronen vom thermoplastischen in den wärmehärtbaren Zustand übergeführt werden.It has also already been proposed to irradiate thermoplastic materials and thus their To change properties. The results reported so far are not uniform; in some cases Decomposition of the material is said to have been observed, but in general the increase in mechanical strength, improvement of chemical resistance and its heat resistance detected by the irradiation. For example, polyethylene can be made by bombarding it with electrons be converted from the thermoplastic to the thermosetting state.
Es ist schließlich bereits versucht worden, die Leistung und Gebrauchsdauer von Akkumulatoren durch Beimischung von radioaktiven Stoffen zum Elektrolyten, zu den Elektroden oder zu Scheidewänden zwischen den Elektroden zu verbessern. Falls die Scheidewände den radioaktiven Zusatz erhalten, bestehen sie aus einem vom Elektrolyten nicht angreifbaren Material und enthalten den im Elektrolyten unlöslichen radioaktiven Stoff, z. B. Radiumsalz, gleichmäßig im Innern verteilt oder als Überzug.After all, attempts have already been made to improve the performance and service life of accumulators Admixture of radioactive substances to the electrolyte, to the electrodes or to partition walls to improve between the electrodes. If the partitions contain the radioactive additive, insist they are made of a material that cannot be attacked by the electrolyte and contain that in the electrolyte insoluble radioactive material, e.g. B. radium salt, evenly distributed inside or as a coating.
Die Erfindung beruht auf der Erkenntnis, daß es möglich ist, die Bestrahlung eines thermoplastischen Scheidermaterials durch langsame Neutronen, Betastrahlen, Gammastrahlen, Röntgenstrahlen od. dgl. so zu dosieren, daß (vermutlich durch Schaffung zusätzlicher Querverbindungen zwischen den Polymerketten) nicht nur die mechanische Festigkeit des Materials, sondern auch dessen chemische Widerstandsfähigkeit, z. B. gegen Oxydierung durch eine daran anliegende Silberoxydelektrode, wesentlich erhöht wird, ohne daß dabei der elektrische Widerstand des Materials im Elektrolyten übermäßig gesteigert wird. Wichtig ist dabei auch, daß der Scheider seinen thermoplastischen Charakter behält, da eine etwaige Verhärtung bei der sich im Betrieb entwickelnden Hitze zu Verzerrungen und sich daraus ergebenden Störungen führen könnte.The invention is based on the knowledge that it is possible to irradiate a thermoplastic Separator material by slow neutrons, beta rays, gamma rays, X-rays or the like. So to dose that (presumably by creating additional cross connections between the polymer chains) not only the mechanical strength of the material, but also its chemical resistance, z. B. against oxidation by an adjacent silver oxide electrode, is significantly increased without that the electrical resistance of the material in the electrolyte is excessively increased. Important It is also important that the separator retains its thermoplastic character because of any hardening with the heat that develops during operation, it leads to distortions and the resulting malfunctions could lead.
Erfindungsgemäß ist daher der Scheider aus bestrahlten Folien oder Schichten filmbildender Kunststoffe hergestellt.According to the invention, the separator is therefore made from irradiated Films or layers of film-forming plastics produced.
Die filmbildenden Kunststoffe können celluloseartigen Charakter haben und beispielsweise aus regenerierter Cellulose (Cellulosehydrat) oder Methylcellulose bestehen. Sie können auch aus einem Polyamid oder anderen thermoplastischen Massen bestehen, insbesondere solchen auf der Basis von Vinyl-Scheider für elektrische Akkumulatoren, insbesondere Silber - Zink -AkkumulatorenThe film-forming plastics can have cellulose-like character and, for example, consist of regenerated cellulose (cellulose hydrate) or methyl cellulose. They can also be made from a polyamide or other thermoplastic materials, especially those based on vinyl separators for electrical accumulators, especially silver-zinc accumulators
Anmelder:Applicant:
Yardney International Corp.,
New York, N. Y. (V. St. A.)Yardney International Corp.,
New York, NY (V. St. A.)
ίο Vertreter: Dipl.-Ing. P. Haertel, Patentanwalt,ίο Representative: Dipl.-Ing. P. Haertel, patent attorney,
Duisburg, Zieglerstr. 32Duisburg, Zieglerstr. 32
Beanspruchte Priorität:
V. St. v. Amerika vom 11. April 1955Claimed priority:
V. St. v. America April 11, 1955
Martin Eli Kagan, New York, N. Y. (V. St. A.),
ist als Erfinder genannt wordenMartin Eli Kagan, New York, NY (V. St. A.),
has been named as the inventor
derivaten, wie Polyvinylchlorid, Polyvinylacetat, Polyvinylalkohol, Äthylenglycolpolyester, Polyvinylalkyläther, Poyacrylsäure und -ester, Polystyrol oder Polyäthylen. Das neue Scheidermaterial kann ferner auch ein ionenaustauschendes Harz enthalten.derivatives such as polyvinyl chloride, polyvinyl acetate, polyvinyl alcohol, ethylene glycol polyester, polyvinyl alkyl ether, Polyacrylic acid and ester, polystyrene or polyethylene. The new separator material can also also contain an ion exchange resin.
Die Bestrahlung der filmbildenden Kunststoffe kann mit gebremsten, also langsamen- Neutronen, mit Betastrahlen, Gammastrahlen oder Röntgenstrahlen erfolgen.The irradiation of the film-forming plastics can be done with braked, i.e. slow neutrons Beta rays, gamma rays, or X-rays occur.
Die Zeichnung veranschaulicht in Ansicht und teils im Schnitt einen erfindungsgemäß ausgebildeten alkalischen Akkumulator.The drawing illustrates in a view and partly in section an alkaline designed according to the invention Accumulator.
Der dargestellte Akkumulator hat ein Gehäuse 1, in welchem positive Elektroden 2 mit negativen Elektroden 3 abwechseln. Zwischen diesen Elektroden sind Schichten aus Scheidermaterial 4, welche in dem dargestellten Ausführungsbeispiel um die negativen Elektroden 3 gewickelt sind. Ein alkalischer Elektrolyt 5 tränkt und durchsetzt das Elektrodenpaket 2, 3, 4. Die Elektroden 2 sind mit positiven Polen 6, die negativen Elektroden 4 mit negativen Polen 7 in nicht dargestellter Weise verbunden. Die Elektroden könnenThe accumulator shown has a housing 1, in which positive electrodes 2 with negative electrodes 3 alternate. Between these electrodes are layers of separator material 4, which are shown in FIG Embodiment are wound around the negative electrodes 3. An alkaline electrolyte 5 soaks and penetrates the electrode package 2, 3, 4. The electrodes 2 have positive poles 6, the negative electrodes 4 connected to negative poles 7 in a manner not shown. The electrodes can
z. B. Silber bzw. Zink als aktive Masse enthalten.z. B. contain silver or zinc as the active material.
Erfindungsgemäß besteht jeder Scheider 4 aus mindestens einer Folie aus bestrahltem, filmbildendem Material, z. B. aus mit langsamen Neutronen beschossenem oder mit geeigneten Strahlen (Beta-, Gamma-, Röntgenstrahlen) bestrahltem Polyvinylalkohol, gegebenenfalls mit Zusatz eines ionenaustauschenden Kunstharzes.According to the invention, each separator 4 consists of at least one sheet of irradiated, film-forming Material, e.g. B. from bombarded with slow neutrons or with suitable beams (beta, gamma, X-rays) irradiated polyvinyl alcohol, optionally with the addition of an ion-exchanging Synthetic resin.
Scheider der neuen Art sind besonders vorteilhaft in alkalischen Silber-Zink-Batterien, in welchen dieSeparators of the new type are particularly advantageous in alkaline silver-zinc batteries in which the
809 527/175809 527/175
Elektroden unter beträchtlichem Druck den halbdurchlässigen Scheidern angepreßt sind. Electrodes are pressed against the semi-permeable separators under considerable pressure.
Claims (3)
Deutsche Patentschrift Nr. 328 697;
französische Patentschrift Nr. 1 071 804.Considered publications:
German Patent No. 328,697;
French patent specification No. 1 071 804.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US834802XA | 1955-04-11 | 1955-04-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1030407B true DE1030407B (en) | 1958-05-22 |
Family
ID=22178613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEY182A Pending DE1030407B (en) | 1955-04-11 | 1956-03-27 | Separators for electrical accumulators, especially silver-zinc accumulators |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE546924A (en) |
DE (1) | DE1030407B (en) |
FR (1) | FR1145050A (en) |
GB (1) | GB834802A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4614575A (en) * | 1984-11-19 | 1986-09-30 | Prototech Company | Polymeric hydrogel-containing gas diffusion electrodes and methods of using the same in electrochemical systems |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE328697C (en) * | 1916-12-14 | 1920-11-03 | Joseph Michael Flannery | Electrical collector containing radioactive substances |
FR1071804A (en) * | 1951-10-07 | 1954-09-06 | Yardney International Corp | Separator for electric heaters |
-
0
- BE BE546924D patent/BE546924A/xx unknown
-
1956
- 1956-03-27 DE DEY182A patent/DE1030407B/en active Pending
- 1956-04-05 FR FR1145050D patent/FR1145050A/en not_active Expired
- 1956-04-11 GB GB11055/56A patent/GB834802A/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE328697C (en) * | 1916-12-14 | 1920-11-03 | Joseph Michael Flannery | Electrical collector containing radioactive substances |
FR1071804A (en) * | 1951-10-07 | 1954-09-06 | Yardney International Corp | Separator for electric heaters |
Also Published As
Publication number | Publication date |
---|---|
GB834802A (en) | 1960-05-11 |
BE546924A (en) | |
FR1145050A (en) | 1957-10-21 |
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