CA2469681A1 - Combination liquid dispenser and electrochemical cell - Google Patents

Combination liquid dispenser and electrochemical cell Download PDF

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Publication number
CA2469681A1
CA2469681A1 CA002469681A CA2469681A CA2469681A1 CA 2469681 A1 CA2469681 A1 CA 2469681A1 CA 002469681 A CA002469681 A CA 002469681A CA 2469681 A CA2469681 A CA 2469681A CA 2469681 A1 CA2469681 A1 CA 2469681A1
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CA
Canada
Prior art keywords
combination
fluid
reservoir
alcohol
electrode
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.)
Granted
Application number
CA002469681A
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French (fr)
Other versions
CA2469681C (en
Inventor
Heiner Ophardt
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2469681A1 publication Critical patent/CA2469681A1/en
Application granted granted Critical
Publication of CA2469681C publication Critical patent/CA2469681C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • H01M8/04208—Cartridges, cryogenic media or cryogenic reservoirs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04186—Arrangements for control of reactant parameters, e.g. pressure or concentration of liquid-charged or electrolyte-charged reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M2008/1095—Fuel cells with polymeric electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/08—Fuel cells with aqueous electrolytes
    • H01M8/083—Alkaline fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/08—Fuel cells with aqueous electrolytes
    • H01M8/086—Phosphoric acid fuel cells [PAFC]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
    • H01M8/1011—Direct alcohol fuel cells [DAFC], e.g. direct methanol fuel cells [DMFC]
    • H01M8/1013—Other direct alcohol fuel cells [DAFC]
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Abstract

In combination, a fluid dispenser and an electrochemical cell to produce electric energy by chemical conversion of the fluid to be dispensed. The electrical energy produced is preferably used to operate a device associated with the dispensing of the fluid as, for example, in operation of an electric pump-to-pump fluid from the reservoir. The fluid preferably is dispensed for use after dispensing in some other purpose than as a source for electrochemical energy to dispense fluid from the reservoir. For example, preferred fluid containing alcohol compounds are for use in cleaning and disinfecting.

Claims (29)

1. In combination, a fluid dispenser and an electrochemical cell, the fluid dispenser comprising:
a reservoir (10) containing a fluid (11) to be dispensed and a dispensing mechanism requiring an electric current to dispense fluid from the reservoir, characterized by:
the electrochemical cell comprising an electrolyte (18) and two electrodes (16, 20) namely an anode and a cathode, separated from each other with the electrolyte (18) between the to electrodes, fuel for the cell comprising fluid (11) from the reservoir (10) in communication with a first of the electrodes, the two electrodes (16, 20) electrically coupled across the dispensing mechanism (36) to provide current flow through the dispensing mechanism (36) by chemical conversion of the fluid (11) at the first of the electrodes.
2. A combination as claimed in claim 1 wherein the electrochemical cell is a fuel cell (14).
3. A combination as claimed in claim 2 wherein:
atmospheric air containing oxygen is in communication with a second of the electrodes (16, 20), with chemical conversation of the fluid (11) at the first electrode to provide current flow oxygen is consumed at the second electrode where water is produced.
4. A combination as claimed in claim 1 wherein the fluid (11) comprises an alcohol compound which comprises the fuel for the cell.
5. A combination as claimed in claim 1 wherein the fluid (11) to be dispensed is for use after dispensing for a purpose other than as fuel for the cell.
6. A combination as claimed in claim 5 wherein the fluid (11) is a cleaning fluid.
7. A combination as claimed in claim 5 wherein the fluid (11) is a disinfectant solution for a hygienic or medical use.
8. A combination as claimed in claim 5 wherein the alcohol compound is selected from methyl alcohol, ethyl alcohol, propyl alcohol, isopropyl alcohol, butyl alcohol, isobutyl alcohol, sec-butyl alcohol, tert-butyl alcohol, 1-pentanol, 1-hexanol, ethylene glycol, propylene glycol, glycerol and benzyl alcohol.
9. The compound of claim 5 wherein the alcohol compound is selected from methyl alcohol and ethyl alcohol.
10. A combination as claimed in claim 9 wherein the alcohol compound is present in at least 20% by volume of the fluid.
11. A combination as claimed in claim 1 wherein the dispensing mechanism (34) comprises a pump for dispensing fluid from the reservoir, the pump (34) having an inlet (38) in communication with the reservoir (10) and an outlet (40) out of which fluid from the reservoir (10) drawn into the pump inlet is dispensed.
12. A combination as claimed in claim 11 wherein the first electrode (16) is in communication with the fluid upstream from the pump (34).
13. A combination as claimed in claim 11 wherein the first electrode (16) is in communication with the fluid after the fluid has passed through the pump (34).
14. A combination as claimed in claim 1 wherein the first electrode (16) is in communication with the fuel (11) within the reservoir (10).
15. A combination as claimed in claim 11 wherein the reservoir (10) has an outlet (12) and a passageway (22) for a passage of fluid from the outlet (12) of the reservoir to the inlet (38) of the pump (34), the passageway (22) being in communication with the first electrode (16) such that at least some fuel in the passageway (22) contacts the first electrode (16).
16. A combination as claimed in claim 1 wherein the reservoir (10) is a collapsible reservoir which reservoir collapses as fuel is dispensed.
17. A combination as claimed in claim 1 wherein the electrochemical cell is an electrolytic battery.
18. A combination as claimed in claim 1 wherein the two electrodes (16, 20) and the electrolyte are all disposed within the reservoir (10).
19. A combination as claimed in claim 18 wherein a gas is produced at the second electrode (20) within the reservoir (10).
20. A combination as claimed in claim 19 wherein the reservoir (10) has a liquid outlet (12) at a lower portion of the reservoir and gas as produced at the second electrode (20), wherein the gas rises through the fluid (11) in the reservoir (10) to an uppermost portion of the reservoir.
21. A combination as claimed in claim 20 wherein the reservoir (10) is collapsible and expandable to accommodate increases and decreases in the volume within the reservoir occasioned by dispensing of the fluid and generation of gas at the second electrode (20).
22. A combination as claimed in claim 18 wherein the fluid (11) is the electrolyte (18).
23. A combination as claimed in claim 1 wherein the reservoir (10) has walls (15, 17) formed from flexible sheet material, at least one of the electrodes (16, 20) comprising a thin layer applied to a wall of the reservoir.
24. A combination as claimed in claim 18 wherein the reservoir (10) comprises a collapsible bag with spaced side walls (15, 17), the cathode (16, 20) is carried on a first side wall (15), the anode (16, 20) is carried on a second side wall (17) spaced from the first side wall (15), the fluid (11) in the bag between the cathode and the anode in communication with both the cathode and anode.
25. A combination as claimed in claim 24 including a spacer member (64) in the bag between the anode (16, 20) and the cathode (16, 20) to keep the anode and the cathode spaced from each other on collapsing of the bag, the spacer member (64) permitting the fluid to pass therethrough.
26. A combination as claimed in claim 24 wherein the side walls (15, 17) are formed from a thin flexible sheet material and one of the anode and the cathode are printed on inside surfaces of the sidewalls within the reservoir (10).
27. A combination as claimed in claim 2 wherein electrolyte is a protonic exchange membrane having a solid polymer in which protons are mobile.
28. A combination as claimed in claim 2 wherein the fuel cell is an alkaline electrolyte fuel cell.
29. A combination as claimed in claim 1 wherein the cell is an acid electrolyte fuel cell.
CA2469681A 2002-01-18 2003-01-14 Combination liquid dispenser and electrochemical cell Expired - Lifetime CA2469681C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/051,750 US6875539B2 (en) 2002-01-18 2002-01-18 Combination liquid dispenser and electrochemical cell
US10/051,750 2002-01-18
PCT/CA2003/000027 WO2003063277A2 (en) 2002-01-18 2003-01-14 Combination liquid dispenser and electrochemical cell

Publications (2)

Publication Number Publication Date
CA2469681A1 true CA2469681A1 (en) 2003-07-31
CA2469681C CA2469681C (en) 2012-11-20

Family

ID=21973165

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2469681A Expired - Lifetime CA2469681C (en) 2002-01-18 2003-01-14 Combination liquid dispenser and electrochemical cell

Country Status (9)

Country Link
US (2) US6875539B2 (en)
EP (1) EP1504140B1 (en)
JP (1) JP4512368B2 (en)
CN (1) CN100338263C (en)
AU (1) AU2003202331A1 (en)
CA (1) CA2469681C (en)
DE (1) DE60306642T2 (en)
ES (1) ES2265562T3 (en)
WO (1) WO2003063277A2 (en)

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Also Published As

Publication number Publication date
CA2469681C (en) 2012-11-20
ES2265562T3 (en) 2007-02-16
DE60306642D1 (en) 2006-08-17
US7530477B2 (en) 2009-05-12
DE60306642T2 (en) 2006-11-09
WO2003063277A2 (en) 2003-07-31
US20030136666A1 (en) 2003-07-24
JP2005526356A (en) 2005-09-02
JP4512368B2 (en) 2010-07-28
US20050064281A1 (en) 2005-03-24
EP1504140A2 (en) 2005-02-09
AU2003202331A1 (en) 2003-09-02
CN1617953A (en) 2005-05-18
CN100338263C (en) 2007-09-19
US6875539B2 (en) 2005-04-05
EP1504140B1 (en) 2006-07-05
WO2003063277A3 (en) 2004-12-02

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