WO2000049673A1 - Source de courant dotee de piles montees en serie - Google Patents

Source de courant dotee de piles montees en serie Download PDF

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Publication number
WO2000049673A1
WO2000049673A1 PCT/DE2000/000462 DE0000462W WO0049673A1 WO 2000049673 A1 WO2000049673 A1 WO 2000049673A1 DE 0000462 W DE0000462 W DE 0000462W WO 0049673 A1 WO0049673 A1 WO 0049673A1
Authority
WO
WIPO (PCT)
Prior art keywords
cells
current
fuel
diodes
fuel cells
Prior art date
Application number
PCT/DE2000/000462
Other languages
German (de)
English (en)
Inventor
Hendrik Dohle
Original Assignee
Forschungszentrum Jülich GmbH
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 Forschungszentrum Jülich GmbH filed Critical Forschungszentrum Jülich GmbH
Priority to JP2000600319A priority Critical patent/JP2002540555A/ja
Priority to AU31464/00A priority patent/AU3146400A/en
Priority to CA002398727A priority patent/CA2398727A1/fr
Priority to EP00909036A priority patent/EP1155469A1/fr
Publication of WO2000049673A1 publication Critical patent/WO2000049673A1/fr

Links

Classifications

    • 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
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • 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
    • H01M8/02—Details
    • 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
    • H01M8/04664—Failure or abnormal function
    • H01M8/04671—Failure or abnormal function 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
    • H01M2250/00—Fuel cells for particular applications; Specific features of fuel cell system
    • H01M2250/20—Fuel cells in motive systems, e.g. vehicle, ship, plane
    • 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
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/249—Grouping of fuel cells, e.g. stacking of fuel cells comprising two or more groupings of fuel cells, e.g. modular assemblies
    • 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
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/40—Application of hydrogen technology to transportation, e.g. using fuel cells

Definitions

  • the invention relates to a current source consisting of a plurality of cells which are electrically connected in series. Electricity is generated or provided by the individual cells.
  • Examples of devices of the type mentioned at the outset are a plurality of batteries connected in series or a plurality of fuel cells connected in series, that is to say a fuel cell stack.
  • a fuel cell has a cathode, an electrolyte and an anode.
  • the cathode becomes an oxidizing agent, e.g. B. air and the anode becomes a fuel, e.g. B. supplied hydrogen.
  • the SOFC fuel cell is also called a high-temperature fuel cell because its operating temperature is up to 1000 ° C.
  • oxygen ions form on the cathode of a high-temperature fuel cell.
  • the oxygen ions pass through the electrolyte and recombine on the anode side with the hydrogen from the fuel to form water.
  • the recombination releases electrons and thus generates electrical energy.
  • the operating temperature of a PEM fuel cell is approximately 80 ° C.
  • Protons are formed on the anode of a PEM fuel cell in the presence of the fuel using a catalyst. The protons pass that Electrolytes and combine on the cathode side with the oxygen from the oxidizing agent to form water. Electrons are released and electrical energy is generated.
  • Several fuel cells are usually electrically and mechanically connected to one another by connecting elements to achieve high electrical outputs.
  • An example of such a connecting element is the bipolar plate known from DE 44 10 711 C1. Using bipolar plates, fuel cells stacked one above the other and electrically connected in series are produced. This arrangement is called a fuel cell stack.
  • methane or methanol can be provided as fuel.
  • the fuels mentioned are by reforming or oxidation u. a. converted to hydrogen or hydrogen-rich gas.
  • the individual cells of a power generation device are PEM fuel cells and a single fuel cell falls e.g. B. due to a malfunction of an operating fluid supply
  • the current flowing through the electrolysis membrane decomposes the water contained in the membrane to hydrogen and oxygen.
  • the oxygen emerges on the anode side and the hydrogen on the cathode side.
  • oxygen reaches the anode compartments of the other cells via feed lines.
  • Mixed potentials arise.
  • Sow material recombines with the hydrogen generated on the anode side. In this way, the generation of electricity in neighboring fuel cells is reduced and finally stopped.
  • the failure of a fuel cell in a series connection of fuel cells can thus poison other fuel cells. Overall, the performance of such a fuel cell stack is significantly reduced.
  • the object of the invention is to provide a device and to specify a use in which power losses which can be attributed to the defect of an individual cell in a series connection are minimized in a simple, inexpensive and low-volume manner.
  • the object of the invention is achieved by a device with the features of the main claim and by a
  • diodes are connected in parallel to individual cells.
  • the diodes are like this polarized that the current flow through the diodes is possible in the normal direction.
  • the normal direction is understood to mean the flow direction which is provided during the operation of an intact power generation device.
  • the diodes are switched so that there is no short circuit.
  • Each individual cell advantageously has a diode connected in parallel in order to achieve maximum success.
  • the provision of a diode is required to make one
  • the diode has a low ohmic resistance. During trouble-free operation of the device, the current flows through the individual cells, since these do not have an electrical resistance, but one
  • the device remains as powerful as possible with comparatively simple means even in the event of a fault.
  • symptoms of poisoning from neighboring cells as can occur in a fuel cell stack, are avoided.
  • the cells are fuel cells, since such a device not only prevents losses in performance due to ohmic resistances, but also prevents the occurrence of poisoning. In the case of a fuel cell stack is consequently have a particularly great performance-preserving effect.
  • a device according to the claims is used, for example, in mobile devices such as portable computers, portable lamps and the like, since special attention must be paid to light weight and volume.
  • a plurality of fuel cells 1 are electrically connected to one another in series.
  • a diode 2 is connected in parallel to each fuel cell 1 in such a way that the current I generated by the fuel cells cannot cause a short circuit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Fuel Cell (AREA)

Abstract

L'invention concerne plusieurs cellules destinées à la production de courant, notamment des piles à combustible qui sont montées en série. Des diodes sont montées en parallèle aux piles à combustible de telle façon que le courant (I) produit par les piles à combustible ne provoquent aucun court-circuit. Si une pile fait défaut en raison d'une défaillance, le courant circule alors par une diode parallèle, la diode constituant une résistance ohmique plus faible. Cela permet de court-circuiter </= automatiquement >/= des piles défecteuses en cas de défaillance et ce, de façon simple et économique.
PCT/DE2000/000462 1999-02-20 2000-02-15 Source de courant dotee de piles montees en serie WO2000049673A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2000600319A JP2002540555A (ja) 1999-02-20 2000-02-15 直列に接続された燃料電池を有する電源
AU31464/00A AU3146400A (en) 1999-02-20 2000-02-15 Source of current with series connected cells
CA002398727A CA2398727A1 (fr) 1999-02-20 2000-02-15 Source de courant dotee de piles montees en serie
EP00909036A EP1155469A1 (fr) 1999-02-20 2000-02-15 Source de courant dotee de piles montees en serie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19907369.4 1999-02-20
DE19907369A DE19907369C2 (de) 1999-02-20 1999-02-20 Stromquelle mit in Serie geschalteten Zellen

Publications (1)

Publication Number Publication Date
WO2000049673A1 true WO2000049673A1 (fr) 2000-08-24

Family

ID=7898309

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/000462 WO2000049673A1 (fr) 1999-02-20 2000-02-15 Source de courant dotee de piles montees en serie

Country Status (6)

Country Link
EP (1) EP1155469A1 (fr)
JP (1) JP2002540555A (fr)
AU (1) AU3146400A (fr)
CA (1) CA2398727A1 (fr)
DE (1) DE19907369C2 (fr)
WO (1) WO2000049673A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002045197A2 (fr) * 2000-11-30 2002-06-06 Siemens Aktiengesellschaft Dispositif d'alimentation en courant continu a plusieurs blocs de piles a combustible montes en serie
EP1376730A1 (fr) * 2002-06-24 2004-01-02 Delphi Technologies, Inc. Optimisation du nombre de cellule dans un assemblage de piles à combustible à électrolyte polymère solide
USRE39556E1 (en) 1997-11-20 2007-04-10 Relion, Inc. Fuel cell and method for controlling same
US7235315B2 (en) 2003-12-16 2007-06-26 Ballard Power Systems Inc. Electrochemical fuel cell stack having a plurality of integrated voltage reversal protection diodes
US8785012B2 (en) 2011-06-09 2014-07-22 Bloom Energy Corporation Fuel cell bypass diode structures and attachment methods
US9059434B2 (en) 2008-08-06 2015-06-16 Bloom Energy Corporation Structure and method for SOFC operation with failed cell diode bypass

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6835481B2 (en) 2000-03-29 2004-12-28 Idatech, Llc Fuel cell system with load management
JP2004512633A (ja) * 2000-09-14 2004-04-22 シーメンス　アクチエンゲゼルシヤフト 燃料電池を作動させる方法と燃料電池設備
DE10215913C1 (de) * 2002-04-11 2003-10-02 Daimler Chrysler Ag Brennstoffzellensystem
US6913845B2 (en) * 2002-10-28 2005-07-05 Utc Fuel Cells, Llc Reducing fuel cell cathode potential during startup and shutdown
DE10328255A1 (de) * 2003-06-24 2005-01-13 Daimlerchrysler Ag Brennstoffzelle mit Kurzschlussmittel
FR2871944B1 (fr) * 2004-06-16 2006-07-28 Air Liquide Systeme de surveillance d'un ensemble de cellules electrochimiques et dispositif de realisation
JP5169002B2 (ja) * 2007-04-20 2013-03-27 ソニー株式会社 電池システムおよびその製造方法
EP2110921B1 (fr) 2008-04-14 2013-06-19 Stanley Black & Decker, Inc. Système de gestion de batterie pour outil sans fil
US8409760B2 (en) 2009-01-20 2013-04-02 Adaptive Materials, Inc. Method for controlling a water based fuel reformer
US20100183929A1 (en) * 2009-01-20 2010-07-22 Adaptive Materials, Inc. Solid oxide fuel cell system including a water based fuel reformer
US8936888B2 (en) 2009-01-30 2015-01-20 Adaptive Materials, Inc. Fuel cell system with flame protection member
JP2010186574A (ja) * 2009-02-10 2010-08-26 Mitsubishi Materials Corp 平板型固定酸化物形燃料電池
JP5280253B2 (ja) * 2009-03-09 2013-09-04 本田技研工業株式会社 燃料電池
US8796888B2 (en) 2010-07-07 2014-08-05 Adaptive Materials, Inc. Wearable power management system
DE102014203159A1 (de) * 2014-02-21 2015-08-27 Airbus Operations Gmbh Brennstoffzellensystem in einem bipolaren Hochspannungsnetz und Verfahren zum Betreiben eines bipolaren Hochspannungsnetzes
GB2542742A (en) 2014-05-18 2017-03-29 Black & Decker Inc Power tool system
US9893384B2 (en) 2014-05-18 2018-02-13 Black & Decker Inc. Transport system for convertible battery pack
EP3560062A4 (fr) 2016-12-23 2020-06-24 Black & Decker Inc. Système d'outil électrique sans fil

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543367A1 (fr) * 1983-03-23 1984-09-28 Gipelec Batterie de piles a signal de fin de vie formee d'elements connectes en serie
DE4139425A1 (de) * 1991-11-29 1993-06-03 Saft Akkumulatoren Und Batteri Batterie, insbesondere 9-v-block
EP0664571A1 (fr) * 1994-01-20 1995-07-26 Fuji Electric Co., Ltd. Générateur à piles à combustible et méthode pour son démarrage
EP0893869A2 (fr) * 1997-07-25 1999-01-27 Becton, Dickinson and Company Un circuit pour causer un échelon de tension dans une batterie multi-cellules

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4410711C1 (de) * 1994-03-28 1995-09-07 Forschungszentrum Juelich Gmbh Metallische bipolare Platte für HT-Brennstoffzellen und Verfahren zur Herstellung desselben
DE4430958C1 (de) * 1994-08-31 1995-10-19 Forschungszentrum Juelich Gmbh Feststoffelektrolyt-Hochtemperatur-Brennstoffzelle und Brennstoffzellen-Anordnung
DE19531852C1 (de) * 1995-08-30 1996-12-19 Forschungszentrum Juelich Gmbh Brennstoffzelle mit Entwässerungssystem

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543367A1 (fr) * 1983-03-23 1984-09-28 Gipelec Batterie de piles a signal de fin de vie formee d'elements connectes en serie
DE4139425A1 (de) * 1991-11-29 1993-06-03 Saft Akkumulatoren Und Batteri Batterie, insbesondere 9-v-block
EP0664571A1 (fr) * 1994-01-20 1995-07-26 Fuji Electric Co., Ltd. Générateur à piles à combustible et méthode pour son démarrage
EP0893869A2 (fr) * 1997-07-25 1999-01-27 Becton, Dickinson and Company Un circuit pour causer un échelon de tension dans une batterie multi-cellules

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE39556E1 (en) 1997-11-20 2007-04-10 Relion, Inc. Fuel cell and method for controlling same
WO2002045197A2 (fr) * 2000-11-30 2002-06-06 Siemens Aktiengesellschaft Dispositif d'alimentation en courant continu a plusieurs blocs de piles a combustible montes en serie
WO2002045197A3 (fr) * 2000-11-30 2003-01-23 Siemens Ag Dispositif d'alimentation en courant continu a plusieurs blocs de piles a combustible montes en serie
EP1376730A1 (fr) * 2002-06-24 2004-01-02 Delphi Technologies, Inc. Optimisation du nombre de cellule dans un assemblage de piles à combustible à électrolyte polymère solide
US7235315B2 (en) 2003-12-16 2007-06-26 Ballard Power Systems Inc. Electrochemical fuel cell stack having a plurality of integrated voltage reversal protection diodes
US9059434B2 (en) 2008-08-06 2015-06-16 Bloom Energy Corporation Structure and method for SOFC operation with failed cell diode bypass
US8785012B2 (en) 2011-06-09 2014-07-22 Bloom Energy Corporation Fuel cell bypass diode structures and attachment methods
US8802250B2 (en) 2011-06-09 2014-08-12 Bloom Energy Corporation Fuel cell bypass diode structures and attachment methods

Also Published As

Publication number Publication date
JP2002540555A (ja) 2002-11-26
AU3146400A (en) 2000-09-04
DE19907369C2 (de) 2002-12-12
CA2398727A1 (fr) 2000-08-24
EP1155469A1 (fr) 2001-11-21
DE19907369A1 (de) 2000-08-24

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