US 11,777,116 B2
Fuel cell system with a vibration generator, and method for operating a fuel cell system with a vibration generator
Arnold Gente, Stuttgart (DE); Jan Hendrik Ohs, Renningen (DE); Udo Riegler, Stuttgart (DE); and Ulrich Berner, Stuttgart (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Appl. No. 17/778,427
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Nov. 5, 2020, PCT No. PCT/EP2020/081056
§ 371(c)(1), (2) Date May 20, 2022,
PCT Pub. No. WO2021/099125, PCT Pub. Date May 27, 2021.
Claims priority of application No. 10 2019 217 877.4 (DE), filed on Nov. 20, 2019.
Prior Publication US 2022/0416270 A1, Dec. 29, 2022
Int. Cl. H01M 8/04 (2016.01); H01M 8/04119 (2016.01); H01M 8/04007 (2016.01); H01M 8/04492 (2016.01); H01M 8/04746 (2016.01); H01M 8/04828 (2016.01)
CPC H01M 8/04156 (2013.01) [H01M 8/04007 (2013.01); H01M 8/04492 (2013.01); H01M 8/04753 (2013.01); H01M 8/04768 (2013.01); H01M 8/04776 (2013.01); H01M 8/04828 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A fuel cell system (200), wherein the fuel cell system (200) comprises:
a fuel cell stack (10),
an anode gas pathway (20) in fluid communication with the fuel cell stack (10) for supply of the fuel cell stack (10) with anode gas from an anode gas reservoir (22),
a cathode gas pathway (30) in fluid communication with the fuel cell stack (10) for supply of the fuel cell stack (10) with cathode gas from a cathode gas reservoir (32),
a cooling fluid pathway (40) in fluid communication with the fuel cell stack (10) for supply of the fuel cell stack (10) with cooling fluid from a cooling fluid reservoir (42),
a vibration generator (60) for setting the fuel cell stack (10) in a vibrating state,
a control unit (50) in data communication with the vibration generator (60) and for actuating the vibration generator (60) to set the fuel cell stack (10) in the vibrating state via the vibration generator (60), and
a water content sensor (202) in data communication with the control unit (50) for ascertaining the water content of a gas diffusion layer within the fuel cell stack (10),
wherein the control unit (50) actuates the vibration generator (60) to vary the vibrating state as a function of the water content of the fuel cell stack (10) ascertained by the water content sensor (202).