WO1999016145B1 - Air manager control using cell voltage as auto-reference - Google Patents

Air manager control using cell voltage as auto-reference

Info

Publication number
WO1999016145B1
WO1999016145B1 PCT/US1998/020021 US9820021W WO9916145B1 WO 1999016145 B1 WO1999016145 B1 WO 1999016145B1 US 9820021 W US9820021 W US 9820021W WO 9916145 B1 WO9916145 B1 WO 9916145B1
Authority
WO
WIPO (PCT)
Prior art keywords
air
voltage
electrode
metal
passageway
Prior art date
Application number
PCT/US1998/020021
Other languages
French (fr)
Other versions
WO1999016145A1 (en
Inventor
Christopher S Pedicini
Gary E Gray
Original Assignee
Aer Energy Resources Inc
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 Aer Energy Resources Inc filed Critical Aer Energy Resources Inc
Priority to DE69802555T priority Critical patent/DE69802555T2/en
Priority to AT98949480T priority patent/ATE208963T1/en
Priority to EP98949480A priority patent/EP1018183B1/en
Priority to JP2000513337A priority patent/JP3655548B2/en
Priority to CA002304504A priority patent/CA2304504A1/en
Publication of WO1999016145A1 publication Critical patent/WO1999016145A1/en
Publication of WO1999016145B1 publication Critical patent/WO1999016145B1/en

Links

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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04537—Electric variables
    • H01M8/04544—Voltage
    • H01M8/04552—Voltage of the individual fuel cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M12/00—Hybrid cells; Manufacture thereof
    • H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
    • H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
    • 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
    • H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
    • 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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04537—Electric variables
    • H01M8/04604—Power, energy, capacity or load
    • H01M8/04611—Power, energy, capacity or load of the individual fuel cell
    • 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
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04753—Pressure; Flow of fuel cell reactants
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • 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
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • 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
    • 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

An air manager system for a metal-air battery. The system includes a housing for enclosing at least one metal-air cell with an air electrode. The housing also has at least one air inlet opening, at least one air outlet opening, and a fan positioned to force air through the openings when the fan is turned on. These openings are unobstructed and sized to eliminate substantially the air flow through the openings when the fan is turned off. The system also includes fan control means having voltage sensing means to monitor the voltage across the air electrode and to operate the fan when the voltage reaches predetermined levels.

Claims

24
AMENDED CLAIMS
[received by the International Bureau on 26 March 1999 (26.03.99); new claims 23-26 added; remaining claims unchanged (2 pages)]
23. An air manager system for a metal-air battery, comprising: a housing for enclosing at least one metal-air cell; said at least one metal-air cell comprising an air electrode; said housing comprising at least one air inlet and at least one air outlet; an air movement device positioned to force air into said air inlet and out of said air outlet when said air movement device is active; said air inlet and said air outlet sized to restrict the flow of air therethrough when said air movement device is inactive; a voltage sensor connected to said air electrode to monitor the voltage across said air electrode; and control means for operating said air movement device responsive to said voltage sensor.
24. A metal-air power supply, comprising: at least one air electrode isolated from ambient air except through at least one passageway; at least one air moving device operative to move air through said passageway to provide reactant air to said air electrode; said passageway being operative, while unsealed and while said air moving device is inactive, to restrict air flow through said passageway; and an air moving device controller comprising a voltage sensor to monitor the voltage across said air electrode wherein the operation of said air moving device is responsive to said air moving device controller. 25
25. A method of maintaining a metal-air cen in operative condition without the presence of a load, said method comprising the steps of: confining at least one metal-air cell within a housing, said at least one metal-air cell comprising an air electrode and said housing comprising an air movement device and at least one air passageway; sensing the voltage across said air electrode; activating said air movement device when the voltage across said air electrode is less than or equal to a predetermined voltage so as to move air through passageway; and deactivating said air movement device when the voltage across said air electrode is greater than or equal to a second predetermined voltage.
26. A system for maintaining a metal-air cell in a ready condition not under a load, comprising: at least one metal-air cell including an air electrode; an air chamber adjacent to said air electrode; at least one passageway entering said air chamber; an air moving device operative to move air through said passageway; a voltage sensor connected to monitor the voltage across said air electrode; and a controller configured to: activate said air moving device when the voltage across said air electrode is less than or equal to a predetermined voltage; and deactivate said air moving device when the voltage across said air electrode is greater than or equal to a second predetermined voltage.
PCT/US1998/020021 1997-09-24 1998-09-23 Air manager control using cell voltage as auto-reference WO1999016145A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE69802555T DE69802555T2 (en) 1997-09-24 1998-09-23 USE OF THE CELL VOLTAGE AS AN AUTO REFERENCE FOR CONTROLLING A VENTILATION MANAGER
AT98949480T ATE208963T1 (en) 1997-09-24 1998-09-23 USE OF CELL VOLTAGE AS AN AUTO REFERENCE TO CONTROL A VENTILATION MANAGER
EP98949480A EP1018183B1 (en) 1997-09-24 1998-09-23 Air manager control using cell voltage as auto-reference
JP2000513337A JP3655548B2 (en) 1997-09-24 1998-09-23 Air management control using cell voltage for automatic reference
CA002304504A CA2304504A1 (en) 1997-09-24 1998-09-23 Air manager control using cell voltage as auto-reference

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/936,206 1997-09-24
US08/936,206 US6106962A (en) 1997-09-24 1997-09-24 Air manager control using cell voltage as auto-reference

Publications (2)

Publication Number Publication Date
WO1999016145A1 WO1999016145A1 (en) 1999-04-01
WO1999016145B1 true WO1999016145B1 (en) 1999-05-14

Family

ID=25468322

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/020021 WO1999016145A1 (en) 1997-09-24 1998-09-23 Air manager control using cell voltage as auto-reference

Country Status (7)

Country Link
US (2) US6106962A (en)
EP (1) EP1018183B1 (en)
JP (1) JP3655548B2 (en)
AT (1) ATE208963T1 (en)
CA (1) CA2304504A1 (en)
DE (1) DE69802555T2 (en)
WO (1) WO1999016145A1 (en)

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WO1999016145A1 (en) 1999-04-01
US6106962A (en) 2000-08-22
ATE208963T1 (en) 2001-11-15
US20010008720A1 (en) 2001-07-19
JP2001517861A (en) 2001-10-09
EP1018183A1 (en) 2000-07-12
CA2304504A1 (en) 1999-04-01
US6322913B2 (en) 2001-11-27
EP1018183B1 (en) 2001-11-14
DE69802555T2 (en) 2002-05-23
JP3655548B2 (en) 2005-06-02

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