Grooved electrodes for high-power-density fuel cells
Los Alamos National Laboratory · Toronto Metropolitan University · +1 more institution
Abstract
Abstract Proton exchange membrane fuel cells (PEMFCs) are leading candidates to decarbonize the transport sector, but widespread deployment will require improvements in lifetime, fuel economy and cost. Here we present the grooved electrode, an alternative electrode structure that enhances PEMFC performance and durability by coupling high ionomer (ion-conducting binder) content for improved H + transport with grooves for rapid O 2 transport. Grooved electrodes provide up to 50% higher performance than state-of-the-art conventional electrodes under standard operating conditions. Fuel cell diagnostics combined with multiphysics modelling demonstrate that grooved electrodes provide facile O 2 transport despite…
Citation impact
- FWCI
- 14.82
- Percentile
- 100%
- References
- 48
Authors
10Topics & keywords
- Durability
- Proton exchange membrane fuel cell
- Materials science
- Electrode
- Multiphysics
- Membrane electrode assembly
- Ionomer
- Composite material
- Affordable and clean energy
Funding
- UDU.S. Department of EnergyAwards: 0003525, M2FCT, DE-NA-0003525, 89233218CNA000001
- CFCenter for Integrated NanotechnologiesAwards: DE-NA-0003525, 89233218CNA000001
- OOOffice of ScienceAwards: 89233218CNA000001, DE-NA-0003525
- OOOffice of Energy Efficiency and Renewable EnergyAwards: DE-NA-0003525, 89233218CNA000001
- NSNatural Sciences and Engineering Research Council of CanadaAward: DE-NA-0003525
- FPFundação para a Ciência e a Tecnologia
- HAHydrogen and Fuel Cell Technologies OfficeAwards: DE-NA-0003525, M2FCT, 89233218CNA000001
- OOOffice of Energy Efficiency
- OROak Ridge National Laboratory
- SNSandia National LaboratoriesAward: DE-NA-0003525
- LALos Alamos National LaboratoryAwards: DE-NA-0003525, 2020200DR, 89233218CNA000001, 20210915PRD2