AT124903B - Lead collector electrode with protective layer. - Google Patents
Lead collector electrode with protective layer.Info
- Publication number
- AT124903B AT124903B AT124903DA AT124903B AT 124903 B AT124903 B AT 124903B AT 124903D A AT124903D A AT 124903DA AT 124903 B AT124903 B AT 124903B
- Authority
- AT
- Austria
- Prior art keywords
- protective layer
- collector electrode
- lead
- lead collector
- plates
- Prior art date
Links
- 239000011241 protective layer Substances 0.000 title description 7
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 239000002253 acid Substances 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229920000159 gelatin Polymers 0.000 description 3
- 235000019322 gelatine Nutrition 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 108010010803 Gelatin Proteins 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 239000008273 gelatin Substances 0.000 description 2
- 235000011852 gelatine desserts Nutrition 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 239000001828 Gelatine Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
Landscapes
- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
<Desc/Clms Page number 1>
Bleisammlerelektrode mit Schutzschicht.
EMI1.1
einer längeren Lagerzeit zu erhalten, ist es erforderlich, die Oxydation der Platten durch den Sauerstoff der Luft zu verhüten. Zu diesem Zwecke hat man bisher die Platten mit einer durch Formaldehyd gehärteten Schicht von Gelatine versehen. Diese Schicht wies aber den Nachteil auf, dass sie sieh bei der Inbetriebsetzung nur langsam im Elektrolyten auflöst, die volle Kapazität der Platten also nicht sofort zur Verfügung stand. Während des Betriebes machte sich die Gelatine ferner durch eine erhebliche Schaumbildung, insbesondere während der Ladung, unangenehm bemerkbar.
Die vorliegende Erfindung betrifft eine Schutzschicht, durch welche die beschriebenen Übelstände vollkommen verhindert werden. Die Verbrennung des Bleischwammes geschieht bekanntlich nur dadureh, dass der Luftsauerstoff mit dem fein verteilten Metallblei in Berührung kommt. Die Schutzschicht nach der Erfindung besteht nun in einem dichten metallischen Überzug, welcher den Luftsauerstoff vom Blei absperrt, aber bei Füllung des Elementes mit Säure sich in kurzer Zeit in der Säure auflöst und deshalb der Säure freien Zutritt zu den Platten gestattet. Als geeignetes Material kommt in erster Linie in Betracht Zink, Kadmium, Magnesium u. dgl. und deren Legierungen.
In Kontakt mit dem Metallblei wirken diese Metalle als Lösungselektrode, sie werden also in dünner Schicht in ganz kurzer Zeit von der Säure auf-
EMI1.2
Undichtigkeiten oder vor Bedecken des Bleisehwammes sich geringe Mengen Bleioxyd gebildet haben sollten, so werden diese durch die reduzierende Wirkung der metallischen Schicht in Metallblei zurück verwandelt.
Die Herstellung der Schutzschicht kann auf die verschiedenste Weise erfolgen. Man kann aus dem Schutzmetall ganz dünne Folien herstellen und die geladenen Platten in diese Folien einwickeln oder auch die Platten mit solchen Folien bedecken. Man kann auch das Sehutzmetall mit Hilfe einer Spritzpistole auf den Bleischwamm aufspritzen. Schliesslich kann man auch das Metall elektrolytiseh auf der geladenen Bleiplatte zur Herstellung der schützenden Schicht niederschlagen. Gegenüber der Schutzschicht aus Gelatine besitzen die metallischen Überzüge auch noch den besonderen Vorzug, dass sie mechanisch widerstandsfähiger sind.
Aus diesem Grunde sind sie nicht nur für den oben angegebenen Zweck zur Erhaltung geladener Bleischwammplatten, sondern überhaupt als Überzug negativer und positiver Elektroden in beliebigen Stadien der Herstellung verwendbar, indem sie jede Beschädigung der Elektroden bei der Lagerung, beim Transport und dem Einbau verhindern.
PATENT-ANSPRÜCHE :
EMI1.3
einen dichten Überzug von Zink, Kadmium, Magnesium oder einem gleichartig wirkenden Metall oder Metallegierung.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Lead collector electrode with protective layer.
EMI1.1
To obtain a longer storage time, it is necessary to prevent the plates from being oxidized by the oxygen in the air. For this purpose, the plates have hitherto been provided with a layer of gelatin hardened by formaldehyde. However, this layer had the disadvantage that it only slowly dissolves in the electrolyte when it is started up, so the full capacity of the plates was not immediately available. During operation, the gelatin also made itself unpleasantly noticeable through considerable foaming, especially during charging.
The present invention relates to a protective layer by which the described inconveniences are completely prevented. It is well known that the lead sponge burns only when the oxygen in the air comes into contact with the finely divided metal lead. The protective layer according to the invention now consists of a dense metallic coating, which blocks the oxygen in the air from the lead, but dissolves in the acid in a short time when the element is filled with acid and therefore allows the acid free access to the plates. Zinc, cadmium, magnesium and the like are primarily considered as suitable materials. Like. And their alloys.
In contact with the metal lead, these metals act as a solution electrode, i.e. they are absorbed by the acid in a thin layer in a very short time.
EMI1.2
Leaks or small amounts of lead oxide should have formed before the lead sponge was covered, these are converted back into metal lead by the reducing effect of the metallic layer.
The protective layer can be produced in the most varied of ways. You can make very thin foils from the protective metal and wrap the charged plates in these foils or cover the plates with such foils. You can also spray the protective metal onto the lead sponge with the help of a spray gun. Finally, the metal can also be deposited electrolytically on the charged lead plate to produce the protective layer. Compared to the protective layer made of gelatine, the metallic coatings also have the special advantage that they are mechanically more resistant.
For this reason, they can be used not only for the above-mentioned purpose of maintaining charged lead sponge plates, but also as a coating for negative and positive electrodes in any stage of manufacture, in that they prevent any damage to the electrodes during storage, transport and installation.
PATENT CLAIMS:
EMI1.3
a dense coating of zinc, cadmium, magnesium or a similarly acting metal or metal alloy.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE124903X | 1930-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT124903B true AT124903B (en) | 1931-10-10 |
Family
ID=5658447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT124903D AT124903B (en) | 1930-09-30 | 1930-12-03 | Lead collector electrode with protective layer. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT124903B (en) |
-
1930
- 1930-12-03 AT AT124903D patent/AT124903B/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3045683C2 (en) | Lead-calcium alloy | |
| AT124903B (en) | Lead collector electrode with protective layer. | |
| AT149626B (en) | Electrode system with asymmetrical conductivity. | |
| DE544401C (en) | Negatively charged and dried, air-resistant lead collector electrode | |
| DE2843458C3 (en) | Self-supporting copper (I) chloride electrode for galvanic elements and process for their production | |
| DE554288C (en) | Shotshell | |
| AT35667B (en) | Material for the carriers of the active masses, as well as for the vessel and the contact devices of collectors with a fixed alkaline electrolyte. | |
| EP0051897A1 (en) | Utilization of a lead-antimony alloy | |
| AT138163B (en) | Box plates for electrical lead collectors. | |
| AT141833B (en) | Process for the production of electrically conductive layers on non-conductive objects. | |
| DE1932456C3 (en) | Process for increasing the resistance of die castings made of alloys of the lead-calcium type to intergranular corrosion | |
| DE1927090C3 (en) | Separator for an alkaline storage battery | |
| DE2412320A1 (en) | ACCUMULATOR GRID | |
| DE669059C (en) | Composite | |
| DE363129C (en) | Hard metal alloys and processes for their manufacture | |
| AT117611B (en) | Negative electrode for electric zinc collectors. | |
| AT142548B (en) | Process for tinning electrical conductors. | |
| DE538306C (en) | Electrolytic cell to be switched on in a circuit with a given current source to reduce the voltage applied to a consumer | |
| DE1813656C3 (en) | Low-antimony lead alloy, especially for electrode grids of lead batteries | |
| AT135456B (en) | Zinc sheet metal cups for dry cell batteries. | |
| DE761371C (en) | Process for the production of a cathodic electrode, in particular for electrolytic capacitors | |
| DE334299C (en) | Electric collector | |
| AT120386B (en) | Anode for the electrolytic production of pure aluminum from raw aluminum, aluminum alloys, etc. like | |
| AT46785B (en) | Process for the production of positive pole electrodes for electrical collectors with alkaline, practically unchangeable electrolyte. | |
| DE889176C (en) | Lead collector |