最小化压力损失和并联电流.pdf

1、IFBF 2025 in Vienna-AustriaDr.Georg Lieser,26.06.2025Minimizing Pressure Loss and Shunt Currents in Next-Generation Redox Flow BatteriesKeine Inhalte Keine Inhalte-The global market leader in vacuum automation Schmalz 6/26/2025Page 5leftrightThe half Cell Design Change perspectiveTop View 2 half Cel

2、lsSide View 2 half Cells50 cm50 cmWall thickness0.5 mm8 mmChannel depth3.5 mm Schmalz 6/26/2025Page 6leftrightScaling a StackMore Cells More Voltage1000 cm4800 cmMore AreaMore Electrolyte VolumeMore Electrolyte VolumeMore Pressure Loss1More VoltageMore Shunt Current21.J.Girschik et al.,Chem.Ing.Tech

3、.2021,93,No.4,5235332.H.Fink et al.,Journal of Power Sources,284(2015)547e553 Schmalz 6/26/2025Page 7leftrightMotivation for Thin CellsHigher Power DensityImproved Ohmic Resistance Better Efficiency and Electrolyte UtilizationImproved Mass-Tranfer-Higher Velocity in a thinner CellSimplified Design M

4、aterial&Component ReductionLess Frames&Less Sealings(One-Frame Concept)Less Carbon Felt(Flow Through)/Less BiPolar-Plate(Flow By)Shorter Bolts for anchoring SystemAdditional SavingsWeight of Stack Transport/System IntegrationImproved Space Utilization Transport/System IntegrationThe thinnest Cell wi

5、th the best Pressure Loss and best Shunt Current Protection will win“8 mm4 mm1.Liu et al 2024 J.Electrochem.Soc.171 040503 Schmalz 6/26/2025Page 8leftrightReducing Cell Thickness 8 mm6 mm4 mm1-Frame Concept4 mmHalf Frame Concept 1.5 mm2 half cellscombined into 1 Frame Better aspect RatioBad aspect R

6、atioWorkaround2.5 mm3.5 mm3.5 mm Schmalz 6/26/2025Page 9leftrightFlowframe-TopologiesMander Height 1 Half CellMander Height 2 Half CellsThe unknown KPI in Stack Design:Mander Depth vs.Cell heightPatent References:US20120208061A1;US8815428B2;KR20230093408A;WO2018105092A1,TW1678020B;Schmalz 6/26/2025P