DE487773C - Process for degassing alkaline accumulators - Google Patents

Process for degassing alkaline accumulators

Info

Publication number
DE487773C
DE487773C DEG74088D DEG0074088D DE487773C DE 487773 C DE487773 C DE 487773C DE G74088 D DEG74088 D DE G74088D DE G0074088 D DEG0074088 D DE G0074088D DE 487773 C DE487773 C DE 487773C
Authority
DE
Germany
Prior art keywords
degassing
alkaline accumulators
accumulator
accumulators
alkaline
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
DEG74088D
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.)
GOTTFRIED HAGEN AKT GES
Original Assignee
GOTTFRIED HAGEN AKT GES
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 GOTTFRIED HAGEN AKT GES filed Critical GOTTFRIED HAGEN AKT GES
Priority to DEG74088D priority Critical patent/DE487773C/en
Application granted granted Critical
Publication of DE487773C publication Critical patent/DE487773C/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
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/34Gastight accumulators
    • 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

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)

Description

Verfahren zur Entgasung alkalischer Akkumulatoren Bleiakkumula,toren haben bekanntlich die Eigenschaft, auch nach beendeter Ladung im Ruhezustande Gase zu entwickeln; sie können daher nicht hermetisch verschlossen werden. Diese Erscheinung ist darauf zurückzuführen, daß die negative Elektrode sich unter Wasserstoffentwicklung langsam von selbst entlädt. Im Gegensatz zum Bleiakkumulator kann der alkalische Nickel-Cadmium-Akkumulator während der Entladung hermetisch verschlossen werden, da er keine Selbstentladung besitzt. Allerdings zeigt der Nickel-Cadmium-Akkumulator eine andere Eigentümlichkeit. Die mit derLadung verbundene Gasbildung ist nämlich nicht mit der Ladung beendet, sondern dauert eine gewisse Zeit nach beendeter Ladung an, so daß der Akkumulator nach beendeter Ladung etwa 6 bis 8 Stunden offen stehenbleiben muß, bevor er verschlossen werden kann. In vielen Fällen, insbesondere dann, wenn der Akkumulator in Laternen- oder andere Gehäuse eingebaut werden soll, ist es außerordentlich unbequem, so lange zu warten, da man den Akkumulator in der Zwischenzeit nicht benutzen kann. Nach der vorliegenden Erfindung läßt sich dieser Nachteil vermeiden, wenn man den Akkumulator vor dem Verschließen bzw. vor dem Einbau in ganz oder teilweise verschlossene Gefäße durch Absaugen der Gase entgast. Dies kann dadurch geschehen, daß man jede einzelne Zelle an eine Vakuumleitung anschließt, oder aber dadurch, daß man die Zellen oder Batterien in einen Behälter bringt und diesen durch Evakuieren entgast. In gewissen Fällen kann man auchdas Gehäuse,in demdieAkkumulatoren entladen werden, so einrichten, daß die Entgasung inihm vorgenommenwerdenkann.DieEntgasung selbst dauert etwa eine viertel bis eine Stunde und ist auf die Batterie ohne nachteiligen Einfluß.Process for degassing alkaline accumulators Lead accumulators, gates are known to have the property of developing gases in the idle state even after charging has ended; therefore they cannot be hermetically sealed. This phenomenon is due to the fact that the negative electrode slowly self-discharges with evolution of hydrogen. In contrast to the lead accumulator, the alkaline nickel-cadmium accumulator can be hermetically sealed during discharge because it does not have a self-discharge. However, the nickel-cadmium secondary battery has a different peculiarity. The gas formation associated with the charge does not end with the charge, but rather lasts for a certain time after the charge has ended, so that the accumulator has to remain open for about 6 to 8 hours after charging has ended before it can be closed. In many cases, especially when the accumulator is to be built into lantern or other housings, it is extremely inconvenient to wait so long because the accumulator cannot be used in the meantime. According to the present invention, this disadvantage can be avoided if the accumulator is degassed by sucking off the gases before it is closed or before it is installed in completely or partially closed vessels. This can be done by connecting each individual cell to a vacuum line, or by placing the cells or batteries in a container and degassing it by evacuation. In certain cases the housing in which the accumulators are discharged can also be arranged in such a way that the degassing can be carried out in it. The degassing itself takes about a quarter to an hour and has no adverse effect on the battery.

Claims (1)

PATENTANSPRUCH*-Verfahren zur Entgasung alkalischerAkkumulatoren, insbesondere solcher mit Nickel-Cadmium-Elektroden, dadurch gekennzeichnet, daß die Zellen unmittelbar nach der Ladung durch Absaugen entgast werden.PATENT CLAIM * - Process for degassing alkaline accumulators, in particular those with nickel-cadmium electrodes, characterized in that the cells are degassed by suction immediately after loading.
DEG74088D 1928-08-15 1928-08-15 Process for degassing alkaline accumulators Expired DE487773C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG74088D DE487773C (en) 1928-08-15 1928-08-15 Process for degassing alkaline accumulators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG74088D DE487773C (en) 1928-08-15 1928-08-15 Process for degassing alkaline accumulators

Publications (1)

Publication Number Publication Date
DE487773C true DE487773C (en) 1929-12-10

Family

ID=7135699

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG74088D Expired DE487773C (en) 1928-08-15 1928-08-15 Process for degassing alkaline accumulators

Country Status (1)

Country Link
DE (1) DE487773C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1025952B (en) * 1955-10-27 1958-03-13 Accumulatoren Fabrik Ag Process for the production of alkaline accumulators which are permanently sealed gas-tight

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1025952B (en) * 1955-10-27 1958-03-13 Accumulatoren Fabrik Ag Process for the production of alkaline accumulators which are permanently sealed gas-tight

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