DE1937837A1 - Fuel cell with solid fuel and liquid oxidising - agent - Google Patents

Fuel cell with solid fuel and liquid oxidising - agent

Info

Publication number
DE1937837A1
DE1937837A1 DE19691937837 DE1937837A DE1937837A1 DE 1937837 A1 DE1937837 A1 DE 1937837A1 DE 19691937837 DE19691937837 DE 19691937837 DE 1937837 A DE1937837 A DE 1937837A DE 1937837 A1 DE1937837 A1 DE 1937837A1
Authority
DE
Germany
Prior art keywords
cell
electrolyte
fuel
zinc
solid fuel
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
Application number
DE19691937837
Other languages
German (de)
Inventor
Forgber Dipl-Ing Hans
Wenk Dr Paul
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.)
FORGBER DIPL ING HANS
Original Assignee
FORGBER DIPL ING HANS
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 FORGBER DIPL ING HANS filed Critical FORGBER DIPL ING HANS
Priority to DE19691937837 priority Critical patent/DE1937837A1/en
Publication of DE1937837A1 publication Critical patent/DE1937837A1/en
Pending 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
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/04—Cells with aqueous electrolyte

Landscapes

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

Abstract

Fuel cell with solid fuel and liquid oxidising agent. This cell comprises a metal anode (preferably Zn) as a solid fuel, and an electrolyte serving as a liquid oxidising agent (pref. K2Cr2O7+ H2SO4). The cathode (e.g. graphite) is preferably executed in the form of a cylinder which is enclosed at the bottom and the top, thus forming a cell housing. The solid fuel and the electrolyte can be supplemented. The cell can be used as a reserve battery by keeping the electrolyte in a plastic envelope, which is pierced before use. As nascent hydrogen participates in the electrochemical reaction, the voltage of the cell is unusually high (2.1 V open circuit). The construction of the cell is simple, and it can be executed in relatively small dimensions.

Description

Beschreibun: Brennstoffzelle mit festem Brennstoff und flüssigem Oxydationsmittel Die bisher bekannteste und leistungsfähigste Brennstoffzelle ist die Wasserstoff-Sauerstoffzelle (Leerlaufspannung 1 V/Zelle) mit gesinterten empfindlichen Spezialelektroden und hochprozentiger Kalilauge als Elektrolyt.Description: fuel cell with solid fuel and liquid oxidizing agent The best known and most powerful fuel cell to date is the hydrogen-oxygen cell (Open circuit voltage 1 V / cell) with sintered sensitive special electrodes and high-percentage potassium hydroxide solution as an electrolyte.

Um deren Nachteile zu beheben, hat man bisher den gasförmigen Wasserstoff durch Methylalkohol (CH30H) in Kalilauge ersetzt. Diese Maßnahme bedingt leider eine Verkleinerung der Leerlauf spannung und damit der Betriebsspannung pro Zelle. Dabei geht die Flächenbelastung (A)/cm2 von rd. 100 auf 33 mA cm zurück. Auch die Verwendung von Luft als Ozydator bringt eine Verschlechterung.In order to remedy their disadvantages, gaseous hydrogen has been used up to now replaced by methyl alcohol (CH30H) in potassium hydroxide solution. Unfortunately, this measure requires a reduction in the no-load voltage and thus the operating voltage per cell. The surface load (A) / cm2 decreases from around 100 to 33 mA cm. Also the Use of air as an ozydator causes deterioration.

Die neue Brennstoffzelle arbeitet mit festen Brennstoffen und flüssigem Oxydator und vermeidet alle bisherigen Nachteile. Auch das Gewicht der Zelle wird wesentlich geringer.The new fuel cell works with solid and liquid fuels Oxydator and avoids all previous disadvantages. Also the weight of the cell will be much lower.

Diese neue Brennstoffzelle verwendet als Besten Brennstoff z.B. handelsübliches technisches Zink (Zn), das schwach amalgamiert ist.This new fuel cell uses e.g. commercially available fuel as the best fuel technical zinc (Zn), which is weakly amalgamated.

Als Elektrolyt wird keine hochkonzentrierte Kalilauge verwendet, sondern handelsübliche sog. Akkumulatoren Säure E2S04 (Diohte -1,28) in der z.B.A highly concentrated potassium hydroxide solution is not used as the electrolyte, but rather commercially available so-called accumulators acid E2S04 (Diohte -1.28) in the e.g.

Kaliumbichromat bis zur Sättigung bei + 10 g gelöst ist.Potassium dichromate is dissolved to saturation at + 10 g.

Bei dieser Zelle sind keine kostspieligen Spezial-Elektroden notwendig, die erst künstlich hergestellt werden müssen, sondern die negative Elektrode ist gleichzeitig Wasserstofferzeuger und zwar wird im Gegensatz zur bisherigen Anwendung atomarer Wasserstoff erzeugt und sofort verbraucht (Wasserstoff in stadum nascendi).With this cell no expensive special electrodes are necessary, which must first be produced artificially, but is the negative electrode at the same time hydrogen generator and that is in contrast to the previous application atomic hydrogen is generated and consumed immediately (hydrogen in stadum nascendi).

Dieser atomare Wasserstoff bewirkt vermutlich die erhöhte Potentialdifferenz von ca. 2.1 Volt im Leerlauf. Als positive Elektrode wird eine handelsübliche Spezialkohle verwendet. Ein weiterer Vorteil ist der einfache Aufbau. Die positive Elektrode (+) Kohle ist als Zylinder ausgebildet und gleichzeitig Behälter für den Elektrolyten. Die negative Elektrode (-) z.B. Zink ist zentral angeordnet und mit einem Kunststoffgewebe umgeben.This atomic hydrogen presumably causes the increased potential difference of approx. 2.1 volts when idling. A commercially available special carbon is used as the positive electrode used. Another advantage is the simple structure. The positive electrode (+) Carbon is designed as a cylinder and at the same time a container for the electrolyte. The negative electrode (-) e.g. zinc is arranged centrally and covered with a plastic fabric surround.

Auch sie e ka nn zentral eingeführt werden (WsohselelektrodeY.They can also be introduced centrally (WsohselelectrodeY.

Claims (7)

Ansprüche: ! Brennstoffzelle mit festem Brennstoff und flüssigem Oxy-Expectations: ! Fuel cell with solid fuel and liquid oxy- dationsmittel, 1) d.gk., daß als Oxydationemittel und -Träger eine Flüssigkeit z.B. dationsmittel, 1) d.gk. that as an oxidizing agent and carrier a Liquid e.g. Kalium-Bichromat + Schwefelsäure (K2C2O2 + H2SO4) und als Brennstoff ein Metall z.B. Zink verwendet werden. Potassium Bichromate + Sulfuric Acid (K2C2O2 + H2SO4) and as a fuel a metal e.g. zinc can be used. 2) d.gk., nach 1), daß der positive Pol (graphitierte Kohle) gleichzeitig der äußere Zylinder ist, der oben und unten geschlossen sein kann und damit das Gehäuse der Zelle darstellt.2) d.gk., according to 1) that the positive pole (graphitized carbon) is at the same time is the outer cylinder that can be closed at the top and bottom, and thus that Represents housing of the cell. 3) nach 1) bis 2) d.gk., daß die freie Oberfläche der Zink-Elektrode Is im Verhaltes zur Oberfläche der Kohle-Elektrode klein ist (z.B. Zn: C s 1 1 5 bis 1 s 10).3) according to 1) to 2) d.gk. that the free surface of the zinc electrode Is is small in relation to the surface of the carbon electrode (e.g. Zn: C s 1 1 5 up to 1 s 10). 4) nach 1) bis 3) d.gk., daß der Zinkstab rund bzw. rechteckig ausgebildet ist und mit einer säurefesten Isolierschicht z.B. Kunststoff so abgedeckt sein kann, daß ein gewollter konstanter Angriffsschlitz für den Elektrolyten vorgegeben ist, bzw. daß der Zinkverbrauch einstellbar ist.4) according to 1) to 3) i.e. that the zinc rod is round or rectangular and can be covered with an acid-proof insulating layer, e.g. plastic, so that that a desired constant attack slot is given for the electrolyte, or that the zinc consumption is adjustable. 5) nach 1) bis 4) d.gk., daß die Zelle trocken unbegrenzt lagerfähig ist, bzw.der Elektrolyt gewollt mit Ventil oder Nadel (Plastik- behälter separat gehalten wird.
5) according to 1) to 4) i.e. that the cell can be stored dry indefinitely or the electrolyte is intended with a valve or needle (plastic container is kept separate.
6) nach 1) bis 5) d.gk., daß die Zelle beliebig lange verwendet werden kann, wenn der Brennstoff und der Elektrolyt kontiftuierlich oder nach Verbrauch ersetzt werden kann.6) according to 1) to 5) i.e. that the cell can be used for as long as desired can if the fuel and the electrolyte are continuous or after consumption can be replaced. 7) nach i) bis 6) d.gk., daß die Zink-Elektrode an der Übergangsstelle, Elektrolyt-Luft, schutzummantelt ist7) according to i) to 6) d.gk. that the zinc electrode at the transition point, Electrolyte air, is protected
DE19691937837 1969-07-25 1969-07-25 Fuel cell with solid fuel and liquid oxidising - agent Pending DE1937837A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19691937837 DE1937837A1 (en) 1969-07-25 1969-07-25 Fuel cell with solid fuel and liquid oxidising - agent

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691937837 DE1937837A1 (en) 1969-07-25 1969-07-25 Fuel cell with solid fuel and liquid oxidising - agent

Publications (1)

Publication Number Publication Date
DE1937837A1 true DE1937837A1 (en) 1971-01-28

Family

ID=5740874

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691937837 Pending DE1937837A1 (en) 1969-07-25 1969-07-25 Fuel cell with solid fuel and liquid oxidising - agent

Country Status (1)

Country Link
DE (1) DE1937837A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0756346A1 (en) * 1995-07-26 1997-01-29 Francesco Presti Instantaneously rechargeable voltaic cell
AT500783B1 (en) * 2004-12-03 2006-03-15 Karl Dr Gruber Fuel for anodic oxidation in electrochemical cells, especially in fuel cells, comprises granules or solid bodies made from polyoxymethylene, polyoxymethylene hydrate, polyoxymethylene acetate and/or polyoxymethylene ether

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0756346A1 (en) * 1995-07-26 1997-01-29 Francesco Presti Instantaneously rechargeable voltaic cell
AT500783B1 (en) * 2004-12-03 2006-03-15 Karl Dr Gruber Fuel for anodic oxidation in electrochemical cells, especially in fuel cells, comprises granules or solid bodies made from polyoxymethylene, polyoxymethylene hydrate, polyoxymethylene acetate and/or polyoxymethylene ether

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