EP 1099268 A1 20010516 - SENSOR CELL FOR AN ELECTROCHEMICAL FUEL CELL STACK
Title (en)
SENSOR CELL FOR AN ELECTROCHEMICAL FUEL CELL STACK
Title (de)
SENSORZELLE FÜR ELEKTROCHEMISCHE BRENNSTOFFZELLENSTAPEL
Title (fr)
ELEMENT DETECTEUR DE PILE A COMBUSTIBLE
Publication
Application
Priority
- CA 9900611 W 19990702
- US 9153198 P 19980702
Abstract (en)
[origin: WO0002282A1] An electrochemical fuel cell stack includes a plurality of fuel cells. At least one of the fuel cells is a sensor cell. The sensor cell has at least one structural dissimilarity with respect to the remaining fuel cells of the plurality. The structural dissimilarity may include, for example, a reduced sensor cell electrochemically active area, reduced electrocatalyst loading, modified anode or cathode flow field, different electrocatalyst composition, or a modified coolant flow field configuration. The sensor cell operates under substantially the same conditions as the remaining cells in the stack. However, in response to a change in a particular stack operating condition, an electrical or thermal response, preferably a voltage change, is induced in the sensor cell which is not simultaneously induced in the remaining fuel cells. Thus, the sensor cell can detect undesirable conditions and its response can be used to initiate corrective action. More than one sensor cell, specific to different types of conditions, may be employed in the stack. In the absence of undesirable conditions, the sensor cell can function as a power-producing fuel cell.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
H01M 8/0263 (2013.01 - US); H01M 8/04365 (2013.01 - EP); H01M 8/04537 (2013.01 - EP); H01M 8/04552 (2013.01 - EP); H01M 8/04679 (2013.01 - EP); H01M 8/241 (2013.01 - US); H01M 8/2457 (2016.02 - US); H01M 8/2483 (2016.02 - US); H01M 8/0668 (2013.01 - EP); H01M 2300/0082 (2013.01 - EP); Y02E 60/50 (2013.01 - EP)
Citation (search report)
See references of WO 0002282A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0002282 A1 20000113; AU 4494699 A 20000124; AU 752755 B2 20020926; CA 2336126 A1 20000113; CA 2336126 C 20070123; EP 1099268 A1 20010516; JP 2002520778 A 20020709
DOCDB simple family (application)
CA 9900611 W 19990702; AU 4494699 A 19990702; CA 2336126 A 19990702; EP 99927631 A 19990702; JP 2000558584 A 19990702