Global Patent Index - EP 2274785 B8

EP 2274785 B8 20130807 - METHOD AND APPARATUS FOR THE DISCONNECTION OF A FUEL CELL

Title (en)

METHOD AND APPARATUS FOR THE DISCONNECTION OF A FUEL CELL

Title (de)

VERFAHREN UND VORRICHTUNG ZUM ABSCHALTEN EINER BRENNSTOFFZELLE

Title (fr)

PROCÉDÉ ET DISPOSITIF DE MISE À L'ARRÊT D'UNE PILE À COMBUSTIBLE

Publication

EP 2274785 B8 20130807 (DE)

Application

EP 09723632 A 20090223

Priority

  • AT 2009000072 W 20090223
  • AT 4912008 A 20080328

Abstract (en)

[origin: WO2009117749A1] The invention relates to a method for the disconnection of a fuel cell (1) with a plurality of cells (11) connected in series, wherein at least two reaction gases are supplied during operation, and the supply of at least one reaction gas is interrupted after operation, and the reaction gas remaining at least in one of the cells (11) is consumed by the current generated by the reaction gases in the cell (11) being dissipated via at least one consumer (13), and to an apparatus for implementing the method. For the complete and controlled consumption of the reaction gases remaining in the individual cells (11), the invention provides that at least one consumer (13) is connected via at least one switching element (14) per cell (11) to each cell (11), with the result that the consumer (13) forms a dedicated circuit with each cell (11), and that at least one reaction gas of each individual cell (11) is completely consumed by the current generated by the reaction gases in the cell (11) being dissipated via the at least one consumer (13) connected to the cell (11).

IPC 8 full level

H01M 8/04 (2006.01); H01M 8/24 (2006.01)

CPC (source: EP US)

H01M 8/04238 (2013.01 - EP US); H01M 8/04303 (2016.02 - US); H01M 8/04582 (2013.01 - EP US); H01M 8/04925 (2013.01 - EP US); H01M 8/04955 (2013.01 - EP US); H01M 8/2465 (2013.01 - EP); Y02E 60/50 (2013.01 - EP)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

AT 505914 A4 20090515; AT 505914 B1 20090515; CN 101981738 A 20110223; CN 101981738 B 20130724; EP 2274785 A1 20110119; EP 2274785 B1 20130626; EP 2274785 B8 20130807; US 2011003220 A1 20110106; WO 2009117749 A1 20091001

DOCDB simple family (application)

AT 4912008 A 20080328; AT 2009000072 W 20090223; CN 200980110729 A 20090223; EP 09723632 A 20090223; US 73589409 A 20090223