.png){kind=icon}
Return
Fuel cell stack redesign and component integration radically increase power density
.png){kind=icon}
PRE
AI
DOI：10.1016/j.joule.2023.12.003.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
The drawbacks of conventional channel -rib flow fields and gas diffusion layers (GDLs) significantly limit the mass transfer and water management capability of proton exchange membrane fuel cells (PEMFCs), impacting volumetric power density. We report a GDLless design of electrode -flow field integration comprised of graphene-coated Ni foam and ultrathin (9.1 mm) carbon nanofiber film as an alternative to conventional channel -rib flow fields and GDLs, which substantially reduces membrane electrode assembly volume (90%), reactant transport distance (96%), and concentration impedance (88.6%), resulting in a remarkable 50% power density increase. The GDL-less design provides an effective strategy for the rational design of integrated electrode -flow field and will guide the future development of PEMFCs for their practical applications in energy conversion technologies. We estimate that the peak volumetric power density a PEMFC stack employing GDL-less design can achieve is 9.8 kW L-1, representing an increase of more than 80% compared with the state-of-the-art commercial PEMFC stack.
Keywords:
GAS-DIFFUSION LAYER
CATHODE CATALYST
DEGRADATION
DESIGN
PEMFC
FOAM
RESISTANCE
Journal
IF:
35.4
Papers:
2.3K
Citations:
4.5W
Organization
Cited Papers
ShareSaveStructure Design for Ultrahigh Power Density Proton Exchange Membrane Fuel Cell.png)
SMALL METHODS
SMALL METHODSIF9.1
PREAI
ShareSaveShareSaveShareSaveShareSaveAnode-Design Strategies for Improved Performance of Polymer-Electrolyte Fuel Cells with Ultra-Thin ElectrodesJOULE
OAAI
JOULEIF35.4
OAAIShareSaveShareSaveShareSaveShareSave
View more