GB1114489A - Methods and apparatus for conveying the electrolyte into the gas chamber of gas-diffusion electrodes - Google Patents

Methods and apparatus for conveying the electrolyte into the gas chamber of gas-diffusion electrodes

Info

Publication number
GB1114489A
GB1114489A GB5680066A GB5680066A GB1114489A GB 1114489 A GB1114489 A GB 1114489A GB 5680066 A GB5680066 A GB 5680066A GB 5680066 A GB5680066 A GB 5680066A GB 1114489 A GB1114489 A GB 1114489A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
gas
electrolyte
piston
electrode
double
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
Application number
GB5680066A
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.)
Siemens Schuckertwerke AG
Siemens AG
Varta AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
Varta AG
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

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04223Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL INTO ELECTRICAL ENERGY
    • H01M8/00Fuel cells; Manufacture thereof
    • H01M8/04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04276Arrangements for managing the electrolyte stream, e.g. heat exchange

Abstract

1,114,489. Pumping electrolyte into a fuel cell electrode gas space. SIEMENS-SCHUCKERTWERKE A.G. and VARTA A.G. 19 Dec., 1966 [23 Dec., 1965], No. 56800/66. Heading H1B. Electrolyte is driven into the gas space of a fuel cell gas-diffusion electrode by means of the energy released upon expansion of either (a) the compressed fuel and/or oxidant gas from its storage pressure to a lower pressure not below that of the gas at the electrode inlet, or (b) the exhaust gases leaving the electrode. The expanding gas may drive a piston rigidly connected to another piston which pumps the electrolyte into the gas space of the electrode; preferably the piston is double-acting and is rigidly connected to two electrolyte pump pistons with complementary cycles. Suitable single- and double-acting pumps are described, together with valves for reversing the direction of travel of the double-acting piston and pneumatic, hydraulic or electric switches for operating the valves when the piston is at the extreme positions. In the general system shown in Fig. 1, gas from the tank 1 is led via the reducing valve 3 to the expansion engine/electrolyte pump 7 or to the reducing valve 5 and from these via pipe 9 to the fuel cell battery 10.
GB5680066A 1965-12-23 1966-12-19 Methods and apparatus for conveying the electrolyte into the gas chamber of gas-diffusion electrodes Expired GB1114489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES0101131 1965-12-23

Publications (1)

Publication Number Publication Date
GB1114489A true true GB1114489A (en) 1968-05-22

Family

ID=7523538

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5680066A Expired GB1114489A (en) 1965-12-23 1966-12-19 Methods and apparatus for conveying the electrolyte into the gas chamber of gas-diffusion electrodes

Country Status (2)

Country Link
DE (1) DE1496252A1 (en)
GB (1) GB1114489A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999030380A1 (en) * 1997-12-05 1999-06-17 Elias Elias R Apparatus for pumping a fluid in a fuel cell system
WO2002093665A2 (en) * 2000-11-21 2002-11-21 Mti Microfuel Cells, Inc. Liquid feed fuel cell system with fuel pump driven by anode exhaust gas
US6874530B2 (en) 2000-01-19 2005-04-05 Robert Bosch Gmbh Dosing unit and method for dosing liquid or gaseous educts for a fuel cell system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999030380A1 (en) * 1997-12-05 1999-06-17 Elias Elias R Apparatus for pumping a fluid in a fuel cell system
US6280867B1 (en) 1997-12-05 2001-08-28 Griff Consulting, Inc. Apparatus for pumping a fluid in a fuel cell system
US6874530B2 (en) 2000-01-19 2005-04-05 Robert Bosch Gmbh Dosing unit and method for dosing liquid or gaseous educts for a fuel cell system
WO2002093665A2 (en) * 2000-11-21 2002-11-21 Mti Microfuel Cells, Inc. Liquid feed fuel cell system with fuel pump driven by anode exhaust gas
WO2002093665A3 (en) * 2000-11-21 2003-08-07 Mti Microfuel Cells Inc Liquid feed fuel cell system with fuel pump driven by anode exhaust gas
US6645655B1 (en) 2000-11-21 2003-11-11 Mti Microfuel Cells Inc. Passively pumped liquid feed fuel cell system
US6699021B2 (en) 2000-11-21 2004-03-02 Mti Microfuel Cells Inc. Passively pumped liquid feed fuel cell system

Also Published As

Publication number Publication date Type
DE1496252A1 (en) 1969-06-12 application

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