US 11,791,492 B2
Fuel cell stack
Adel Jilani, Burnaby (CA); and Siva Sankar Voosani Krishna, Burnaby (CA)
Assigned to Volkswagen AG, Wolfsburg (DE); and Audi AG, Ingolstadt (DE)
Appl. No. 17/254,763
Filed by AUDI AG, Ingolstadt (DE); and Volkswagen AG, Wolfsburg (DE)
PCT Filed May 10, 2019, PCT No. PCT/EP2019/062008
§ 371(c)(1), (2) Date Dec. 21, 2020,
PCT Pub. No. WO2019/242931, PCT Pub. Date Dec. 26, 2019.
Claims priority of application No. 10 2018 210 176 (DE), filed on Jun. 22, 2018.
Prior Publication US 2021/0273253 A1, Sep. 2, 2021
Int. Cl. H01M 8/248 (2016.01)
CPC H01M 8/248 (2013.01) [H01M 2250/20 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A fuel cell stack, comprising:
one first end plate and one second end plate;
a plurality of fuel cells arranged between the end plates;
at least one elastic tensioning element tensioned in a stack direction between the end plates; and
at least one rotationally mounted mounting shaft,
wherein at least one end section of the at least one elastic tensioning element is fixed to the at least one rotationally mounted mounting shaft and the at least one rotationally mounted mounting shaft is connected via at least one tensioned torsion spring to the fuel cell stack.