US 12,261,340 B2
Fuel cell stack with compression means
Mardit Matian, Prangins (CH); and Alexandre Chainho, Sombacour (CH)
Assigned to EH GROUP ENGINEERING AG, Nyon (CH)
Appl. No. 17/428,689
Filed by EH GROUP ENGINEERING AG, Prangins (CH)
PCT Filed Feb. 6, 2020, PCT No. PCT/IB2020/050962
§ 371(c)(1), (2) Date Aug. 5, 2021,
PCT Pub. No. WO2020/161668, PCT Pub. Date Aug. 13, 2020.
Claims priority of application No. 00146/19 (CH), filed on Feb. 7, 2019.
Prior Publication US 2022/0115685 A1, Apr. 14, 2022
Int. Cl. H01M 8/248 (2016.01); H01M 8/0276 (2016.01); H01M 8/2483 (2016.01); H01M 8/0247 (2016.01); H01M 8/247 (2016.01)
CPC H01M 8/248 (2013.01) [H01M 8/0276 (2013.01); H01M 8/2483 (2016.02); H01M 8/0247 (2013.01); H01M 8/247 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A fuel cell, comprising at least a cell with an active area, an area around the active area and a manifold area, a top end plate, a bottom end plate, a top cover and compression means, wherein said top end plate comprises a first top end plate that covers the manifold area and the area around the active area and a second top end plate that exclusively covers the active area, wherein an independent compression force is applied separately on the manifold area and the area around the active area by dedicated springs on said first top end plate and a second independent compression force is applied separately on the active area by dedicated second springs on a lower external surface of said second top end plate.