Pore-Scale Investigation of Mass Transport in Compressed Cathode Gas Diffusion Layer of Proton Exchange Membrane Fuel Cells
Proton exchange membrane fuel cells (PEMFCs) are considered a promising energy source in the field of transport and distributed power generation. Fundamental research into their key components is needed to improve PEMFC performance and accelerate commercialization. Binder addition and compression in...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-09-01
|
| Series: | Crystals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4352/13/10/1430 |
| _version_ | 1797574226086985728 |
|---|---|
| author | Hao Wang Guogang Yang Shian Li Qiuwan Shen Fengmin Su Guoling Zhang Zheng Li Ziheng Jiang Jiadong Liao Juncai Sun |
| author_facet | Hao Wang Guogang Yang Shian Li Qiuwan Shen Fengmin Su Guoling Zhang Zheng Li Ziheng Jiang Jiadong Liao Juncai Sun |
| author_sort | Hao Wang |
| collection | DOAJ |
| description | Proton exchange membrane fuel cells (PEMFCs) are considered a promising energy source in the field of transport and distributed power generation. Fundamental research into their key components is needed to improve PEMFC performance and accelerate commercialization. Binder addition and compression induced by assembly pressure can significantly change the microstructure of the gas diffusion layer and affect mass transport. A two-dimensional multicomponent lattice Boltzmann (LB) model considering the cathode electrochemical reaction was developed, and a GDL was reconstructed numerically and considering a binder structure. The effects of the binder and compression on mass transport and electrochemical performance within the GDL were investigated. The results showed that an increase in binder volume fraction led to more chain-like structures and closed pores that were unfavorable for mass transport. Compression increased the mass transfer resistance of the GDL in the region under the rib, leading to a decrease in oxygen concentration and local current density. |
| first_indexed | 2024-03-10T21:19:57Z |
| format | Article |
| id | doaj.art-b2ccde1434ba4968b66bc8858df3d084 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T21:19:57Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-b2ccde1434ba4968b66bc8858df3d0842023-11-19T16:09:07ZengMDPI AGCrystals2073-43522023-09-011310143010.3390/cryst13101430Pore-Scale Investigation of Mass Transport in Compressed Cathode Gas Diffusion Layer of Proton Exchange Membrane Fuel CellsHao Wang0Guogang Yang1Shian Li2Qiuwan Shen3Fengmin Su4Guoling Zhang5Zheng Li6Ziheng Jiang7Jiadong Liao8Juncai Sun9Marine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaMarine Engineering College, Dalian Maritime University, Dalian 116026, ChinaProton exchange membrane fuel cells (PEMFCs) are considered a promising energy source in the field of transport and distributed power generation. Fundamental research into their key components is needed to improve PEMFC performance and accelerate commercialization. Binder addition and compression induced by assembly pressure can significantly change the microstructure of the gas diffusion layer and affect mass transport. A two-dimensional multicomponent lattice Boltzmann (LB) model considering the cathode electrochemical reaction was developed, and a GDL was reconstructed numerically and considering a binder structure. The effects of the binder and compression on mass transport and electrochemical performance within the GDL were investigated. The results showed that an increase in binder volume fraction led to more chain-like structures and closed pores that were unfavorable for mass transport. Compression increased the mass transfer resistance of the GDL in the region under the rib, leading to a decrease in oxygen concentration and local current density.https://www.mdpi.com/2073-4352/13/10/1430proton exchange membrane fuel cellsgas diffusion layerlattice Boltzmann methodcompressionbindermass transport |
| spellingShingle | Hao Wang Guogang Yang Shian Li Qiuwan Shen Fengmin Su Guoling Zhang Zheng Li Ziheng Jiang Jiadong Liao Juncai Sun Pore-Scale Investigation of Mass Transport in Compressed Cathode Gas Diffusion Layer of Proton Exchange Membrane Fuel Cells Crystals proton exchange membrane fuel cells gas diffusion layer lattice Boltzmann method compression binder mass transport |
| title | Pore-Scale Investigation of Mass Transport in Compressed Cathode Gas Diffusion Layer of Proton Exchange Membrane Fuel Cells |
| title_full | Pore-Scale Investigation of Mass Transport in Compressed Cathode Gas Diffusion Layer of Proton Exchange Membrane Fuel Cells |
| title_fullStr | Pore-Scale Investigation of Mass Transport in Compressed Cathode Gas Diffusion Layer of Proton Exchange Membrane Fuel Cells |
| title_full_unstemmed | Pore-Scale Investigation of Mass Transport in Compressed Cathode Gas Diffusion Layer of Proton Exchange Membrane Fuel Cells |
| title_short | Pore-Scale Investigation of Mass Transport in Compressed Cathode Gas Diffusion Layer of Proton Exchange Membrane Fuel Cells |
| title_sort | pore scale investigation of mass transport in compressed cathode gas diffusion layer of proton exchange membrane fuel cells |
| topic | proton exchange membrane fuel cells gas diffusion layer lattice Boltzmann method compression binder mass transport |
| url | https://www.mdpi.com/2073-4352/13/10/1430 |
| work_keys_str_mv | AT haowang porescaleinvestigationofmasstransportincompressedcathodegasdiffusionlayerofprotonexchangemembranefuelcells AT guogangyang porescaleinvestigationofmasstransportincompressedcathodegasdiffusionlayerofprotonexchangemembranefuelcells AT shianli porescaleinvestigationofmasstransportincompressedcathodegasdiffusionlayerofprotonexchangemembranefuelcells AT qiuwanshen porescaleinvestigationofmasstransportincompressedcathodegasdiffusionlayerofprotonexchangemembranefuelcells AT fengminsu porescaleinvestigationofmasstransportincompressedcathodegasdiffusionlayerofprotonexchangemembranefuelcells AT guolingzhang porescaleinvestigationofmasstransportincompressedcathodegasdiffusionlayerofprotonexchangemembranefuelcells AT zhengli porescaleinvestigationofmasstransportincompressedcathodegasdiffusionlayerofprotonexchangemembranefuelcells AT zihengjiang porescaleinvestigationofmasstransportincompressedcathodegasdiffusionlayerofprotonexchangemembranefuelcells AT jiadongliao porescaleinvestigationofmasstransportincompressedcathodegasdiffusionlayerofprotonexchangemembranefuelcells AT juncaisun porescaleinvestigationofmasstransportincompressedcathodegasdiffusionlayerofprotonexchangemembranefuelcells |