DE487773C - Process for degassing alkaline accumulators - Google Patents
Process for degassing alkaline accumulatorsInfo
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/34—Gastight accumulators
-
- 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
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)
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)
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 |
-
1928
- 1928-08-15 DE DEG74088D patent/DE487773C/en not_active Expired
Cited By (1)
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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