EP1186068A2 - Pile a combustible a membrane haute temperature pour actionner une batterie de piles a combustible a membrane haute temperature et batterie de piles a combustible a membrane haute temperature correspondante - Google Patents

Pile a combustible a membrane haute temperature pour actionner une batterie de piles a combustible a membrane haute temperature et batterie de piles a combustible a membrane haute temperature correspondante

Info

Publication number
EP1186068A2
EP1186068A2 EP00943575A EP00943575A EP1186068A2 EP 1186068 A2 EP1186068 A2 EP 1186068A2 EP 00943575 A EP00943575 A EP 00943575A EP 00943575 A EP00943575 A EP 00943575A EP 1186068 A2 EP1186068 A2 EP 1186068A2
Authority
EP
European Patent Office
Prior art keywords
fuel cell
htm
battery
temperature
reaction gas
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.)
Withdrawn
Application number
EP00943575A
Other languages
German (de)
English (en)
Inventor
Manfred Baldauf
Ulrich Gebhardt
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 AG
Original Assignee
Siemens 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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1186068A2 publication Critical patent/EP1186068A2/fr
Withdrawn legal-status Critical Current

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
    • H01M8/04223—Auxiliary 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
    • H01M8/04225—Auxiliary 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 during start-up
    • 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
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • 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
    • H01M8/04223—Auxiliary 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
    • H01M8/04228—Auxiliary 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 during shut-down
    • 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
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • H01M8/04156—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying with product water removal
    • 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

Definitions

  • the invention relates to a high-temperature membrane (HTM) fuel cell, a method for operating an HTM fuel cell and an HTM fuel cell battery.
  • HTM high-temperature membrane
  • the polymer electrolyte membrane (PEM) fuel cell is known from the prior art, which has as the electrolyte a base polymer to which [-S0 3 H] groups are attached.
  • the electrolytic conduction takes place via hydrated protons.
  • this membrane needs liquid water, ie operating temperatures below 100 ° C. under normal pressure, in order to ensure the proton conductivity.
  • One starting point to remove the limitation of the operating temperature is that instead of the membrane containing the [-SO3H] groups, another membrane is used, which may also be an ion exchange membrane, and / or a matrix with free and / or physically and / or chemically bound phosphoric acid is used as the electrolyte of a fuel cell.
  • This fuel cell is called a high-temperature membrane fuel cell, which is referred to below as an HTM fuel cell.
  • PAFC phosphoric acid fuel cell
  • the object of the invention is therefore to create a fuel cell and to provide an associated operating concept. This is intended to build a fuel cell battery that can function without replenishing the electrolyte.
  • the invention relates to a high-temperature membrane fuel cell, with a membrane and two electrodes, the anode and the cathode with the associated reaction gas spaces, one or both of the electrodes and / or one or both reaction gas spaces being at least locally heatable.
  • the invention further relates to a method for operating an HTM fuel cell battery in the case of a Temperature of the fuel cell stack below 100 ° C at least one electrode and / or a reaction gas space is locally heated, so that the product water formed does not condense but leaves the fuel cell unit in gaseous form.
  • the subject of the invention is an HTM fuel cell battery which comprises at least one fuel cell unit, the cathode, anode and / or one of whose reaction gas spaces can be heated.
  • the cathode and / or the cathode space is preferably heated. Appropriate measures can also be carried out on the anode side of fuel cells.
  • HTM high-temperature membrane
  • a single fuel cell unit comprises a centrally arranged membrane with an electrode coating on both sides.
  • the electrode coating contains a gas diffusion layer, which has, for example, a current collector made of a carbon fabric or the like, and a layer with the electrocatalyst which is directly adjacent to the membrane.
  • the fuel cell unit is surrounded by a pole plate at the top and bottom, the pole plate also being referred to as a cell plate or bipolar plate.
  • a stack of individual fuel cell units referred to in the art as a fuel cell stack, comprises at least one fuel cell with the corresponding end plates and
  • the cooling system stem can also have components that are arranged outside the stack.
  • a fuel cell battery comprises at least one fuel cell stack and associated units, which are also arranged in the battery, such as a reformer.
  • the localized areas m which takes place this simulation, are preferably those areas where m the resulting product without water, the temperature increase was auskon ⁇ condense.
  • the product water is produced in vapor form.
  • the vaporous water is discharged, for example, with a gas stream, in particular the process gas stream of the fuel cell.
  • the heating element is required for local heating to evaporate the process water at starting temperatures below 100 ° C.
  • the heating element can be at least one wire which is embedded, for example, in the catalyst layer of the electrode, in the gas diffusion layer and / or in the pole plate or the cell plate or in the bipolar plate of the fuel cell unit.
  • the wire is wound a resistance wire, for example serpentmenformig m or similar form, being produced by an electrical current in the resistor wire ⁇ 's heat.
  • the catalyst layer serves ⁇ m connection with the electrode directly as a heating element, for example m the form of a catalytic burner, said fuel and oxidant from ⁇ partly, ie, 0 2 and / or air, are directed to the catalyst layer.
  • a catalytic burner leads to a so-called silent combustion, which heats the reaction gas space.
  • the catalyst layer in connection with the electrode, the gas diffusion layer and / or the pole plate itself serves directly as a heating element, for example by passing current through it.
  • the heating element is only present in parts of the electrode, the pole plate and / or gas diffusion layer, so that these have areas that can be heated and areas that are unheatable.
  • the electrical power emitted by the fuel cell battery itself or by an external battery is used for supply, with an additional battery possibly being provided for the fuel cell unit, the heating in the other cases takes place directly through the conversion of the chemical energy that is present in the fuel.
  • the recombination of fuel gas and oxidant is used, which realizes an exothermic process.

Landscapes

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

Abstract

L'invention concerne une pile à combustible à membrane haute température, un procédé permettant d'actionner une pile à combustible à membrane haute température et une batterie de piles à combustible à membrane haute température. Le rinçage de l'électrolyte pendant le démarrage de la batterie est empêché du fait que l'eau du produit n'est pas condensée à l'intérieur de l'unité de piles à combustible, car celle-ci peut être chauffée de manière limitée localement par vaporisation de l'eau du produit.
EP00943575A 1999-05-19 2000-05-12 Pile a combustible a membrane haute temperature pour actionner une batterie de piles a combustible a membrane haute temperature et batterie de piles a combustible a membrane haute temperature correspondante Withdrawn EP1186068A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19922922 1999-05-19
DE19922922A DE19922922A1 (de) 1999-05-19 1999-05-19 Hochtemperatur-Membran-Brennstoffzelle, Verfahren zum Betreiben einer HTM-Brennstoffzellenbatterie und HTM-Brennstoffzellenbatterie
PCT/DE2000/001502 WO2000070693A2 (fr) 1999-05-19 2000-05-12 Pile a combustible a membrane haute temperature pour actionner une batterie de piles a combustible a membrane haute temperature et batterie de piles a combustible a membrane haute temperature correspondante

Publications (1)

Publication Number Publication Date
EP1186068A2 true EP1186068A2 (fr) 2002-03-13

Family

ID=7908484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00943575A Withdrawn EP1186068A2 (fr) 1999-05-19 2000-05-12 Pile a combustible a membrane haute temperature pour actionner une batterie de piles a combustible a membrane haute temperature et batterie de piles a combustible a membrane haute temperature correspondante

Country Status (7)

Country Link
US (1) US20020068207A1 (fr)
EP (1) EP1186068A2 (fr)
JP (1) JP2003500800A (fr)
CN (1) CN1350708A (fr)
CA (1) CA2374055A1 (fr)
DE (1) DE19922922A1 (fr)
WO (1) WO2000070693A2 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001003212A2 (fr) * 1999-07-05 2001-01-11 Siemens Aktiengesellschaft Pile a combustible a membrane electrolytique polymere haute temperature (htm), centrale a piles a combustible htm, et procede pour faire fonctionner une pile a combustible htm et/ou une centrale a piles a combustible htm
KR100697253B1 (ko) * 2000-05-08 2007-03-21 혼다 기켄 고교 가부시키가이샤 연료 전지
JP2002324563A (ja) * 2001-04-24 2002-11-08 Toyota Motor Corp 燃料電池システム及び燃料電池システムの制御方法
DE10214564A1 (de) * 2002-03-31 2003-10-23 Siemens Ag Verfahren zur gezielten, kurzzeitigen Befeuchtung einer HT-PEM-Brennstoffzelle sowie zugehörige HT-PEM-Brennstoffzellenanlage
DE10247710A1 (de) * 2002-10-12 2004-05-13 Volkswagen Ag Brennstoffzellensystem, insbesondere eines Kraftfahrzeugs
JP4351431B2 (ja) * 2002-10-28 2009-10-28 本田技研工業株式会社 燃料電池スタック
US6979805B2 (en) * 2003-01-08 2005-12-27 Hewlett-Packard Development Company, L.P. Fuel-cell resistors and methods
JP2007512659A (ja) * 2003-10-10 2007-05-17 バラード パワー システムズ インコーポレイティド イオン交換膜の伝導性を改良するための水不溶性添加剤
KR100570753B1 (ko) * 2004-02-13 2006-04-12 삼성에스디아이 주식회사 연료 전지 시스템
WO2008048317A1 (fr) 2005-12-22 2008-04-24 Ballard Power Systems Inc. Additif insoluble dans l'eau destiné à améliorer la conductivité d'une membrane à échange ionique
CN105449242B (zh) * 2015-11-16 2018-04-24 武汉理工大学 一种车载金属双极板燃料电池低温启动控制系统及方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3929730A1 (de) * 1989-09-07 1991-03-21 Kernforschungsz Karlsruhe Wasserstoff/sauerstoff-brennstoffzelle
JP2951025B2 (ja) * 1991-04-08 1999-09-20 三洋電機株式会社 小型リン酸型燃料電池の運転方法
DE4132356A1 (de) * 1991-09-27 1993-04-01 Bernhard Ruck Mobile reinigungs- und massagevorrichtung
DE19523973C1 (de) * 1995-06-30 1996-12-19 Siemens Ag Hochtemperatur-Brennstoffzellenanlage und Verfahren zu ihrem Betrieb
JPH11154529A (ja) * 1997-11-21 1999-06-08 Tokyo Gas Co Ltd リン酸型燃料電池の停止方法及びリン酸型燃料電池
DE19807878C2 (de) * 1998-02-25 2001-10-31 Xcellsis Gmbh Brennstoffzellensystem

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0070693A2 *

Also Published As

Publication number Publication date
WO2000070693A2 (fr) 2000-11-23
WO2000070693A3 (fr) 2001-08-16
US20020068207A1 (en) 2002-06-06
JP2003500800A (ja) 2003-01-07
CA2374055A1 (fr) 2000-11-23
DE19922922A1 (de) 2000-11-23
CN1350708A (zh) 2002-05-22

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