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1. WO2020114680 - METHOD FOR REDUCING THE CARBON CORROSION IN A FUEL CELL STACK, AND MOTOR VEHICLE

Publication Number WO/2020/114680
Publication Date 11.06.2020
International Application No. PCT/EP2019/079453
International Filing Date 29.10.2019
IPC
H01M 8/043 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
043applied during specific periods
H01M 8/04303 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
043applied during specific periods
04303applied during shut-down
H01M 8/04746 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
04694characterised by variables to be controlled
04746Pressure; Flow
H01M 8/0438 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
04313characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
0438Pressure; Ambient pressure; Flow
H01M 8/04537 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
04313characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
04537Electric variables
H01M 8/04228 2016.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04223during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
04228during shut-down
CPC
B60L 50/70
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
50Electric propulsion with power supplied within the vehicle
50using propulsion power supplied by batteries or fuel cells
70using power supplied by fuel cells
H01M 2008/1095
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
1095Fuel cells with polymeric electrolytes
H01M 4/92
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
92Metals of platinum group
H01M 4/926
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
90Selection of catalytic material
92Metals of platinum group
925supported on carriers, e.g. powder carriers
926on carbon or graphite
H01M 8/04228
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04223during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
04228during shut-down
H01M 8/04298
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04298Processes for controlling fuel cells or fuel cell systems
Applicants
  • BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT [DE]/[DE]
Inventors
  • DAVID, Frank
Priority Data
10 2018 131 160.506.12.2018DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR VERRINGERUNG DER KOHLENSTOFFKORROSION IN EINEM BRENNSTOFFZELLENSTAPEL SOWIE KRAFTFAHRZEUG
(EN) METHOD FOR REDUCING THE CARBON CORROSION IN A FUEL CELL STACK, AND MOTOR VEHICLE
(FR) PROCÉDÉ POUR LA RÉDUCTION DE LA CORROSION DE CARBONE DANS UN EMPILEMENT DE PILES À COMBUSTIBLE AINSI QUE VÉHICULE AUTOMOBILE
Abstract
(DE)
Die hier offenbarte Technologie betrifft ein Verfahren zur Verringerung der Kohlenstoffkorrosion in einem Brennstoffzellenstapel (300) eines Brennstoffzellensystems. Das Verfahren umfasst die Schritte: i) Erfassen eines Korrosionswertes, der repräsentativ ist für das Ausmaß einer wahrscheinlich eintretenden Kohlenstoff Korrosion im Brennstoffzellenstapel (300) während einer inaktiven Phase des Brennstoffzellenstapels (300); und ii) Initiieren einer Schutzmaßnahme zur Verringerung der Kohlenstoffkorrosion im Brennstoffzellenstapel (300) basierend auf den Korrosionswert.
(EN)
The invention relates to a method for reducing the carbon corrosion in a fuel cell stack (300) of a fuel cell system. The method comprises the steps: i) detecting a corrosion value which is representative of the extent of the carbon corrosion probably occurring in the fuel cell stack (300) during an inactive phase of the fuel cell stack (300), and ii) initiating a protective measure for reducing the carbon corrosion in the fuel cell stack (300) on the basis of the corrosion value.
(FR)
L’invention concerne un procédé pour la réduction de la corrosion de carbone dans un empilement de piles à combustible (300) d’un système de piles à combustible. Le procédé comprend les étapes de : i) détection d’un taux de corrosion, qui est représentatif pour le degré d’une corrosion de carbone potentielle dans l’empilement de piles à combustible (300) pendant une phase inactive de l’empilement de piles à combustible (300), et ii) initialisation d’une mesure de protection pour la réduction de la corrosion de carbone dans l’empilement de piles à combustible (300) sur la base du taux de corrosion.
Also published as
Latest bibliographic data on file with the International Bureau