US 11,855,320 B2
Fuel leak detection in fuel cell stack
Sonia Sorbera, Woodbridge (CA); Robert Bencak, Georgetown (CA); Prabhsimran Malhi, Brampton (CA); and Luke Fregonese, Toronto (CA)
Assigned to HYDROGENICS CORPORATION, Mississauga (CA)
Filed by HYDROGENICS CORPORATION, Mississauga (CA)
Filed on Feb. 13, 2023, as Appl. No. 18/168,323.
Claims priority of provisional application 63/313,832, filed on Feb. 25, 2022.
Prior Publication US 2023/0275244 A1, Aug. 31, 2023
Int. Cl. H01M 8/04 (2016.01); H01M 8/04664 (2016.01); H01M 8/04537 (2016.01); H01M 8/04746 (2016.01); H01M 8/04228 (2016.01)
CPC H01M 8/04679 (2013.01) [H01M 8/04228 (2016.02); H01M 8/04559 (2013.01); H01M 8/04753 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A fuel cell system comprising:
a fuel cell stack including an anode and a cathode,
a discharge resistor operable to discharge voltage from the fuel cell stack,
a system controller operable to measure a rate of voltage discharge and identify a presence of a hydrogen leak in the fuel cell system based on the discharge voltage.