Additive manufactured bipolar plate for high-efficiency hydrogen production in proton exchange membrane electrolyzer cells
- Univ. of Tennessee, Knoxville, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Additive manufacturing (AM) technology is capable of fast and low-cost prototyping from complex 3D digital models. To take advantage of this technology, a stainless steel (SS) plate with parallel flow field served as a combination of a cathode bipolar plate and a current distributor; it was fabricated using selective laser melting (SLM) techniques and investigated in a proton exchange membrane electrolyzer cell (PEMEC) in-situ for the first time. The experimental results show that the PEMEC with an AM SS cathode bipolar plate can achieve an excellent performance for hydrogen production for a voltage of 1.779 V and a current density of 2.0 A/cm2. The AM SS cathode bipolar plate was also characterized by SEM and EDS, and the results show a uniform elemental distribution across the plate with very limited oxidization. Finally, this research demonstrates that AM method could be a route to aid cost-effective and rapid development of PEMECs.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office
- Grant/Contract Number:
- AC36-08GO28308; AC05-00OR22725; FE0011585
- OSTI ID:
- 1361233
- Alternate ID(s):
- OSTI ID: 1396509; OSTI ID: 1615831
- Report Number(s):
- NREL/JA-4A00-68481
- Journal Information:
- International Journal of Hydrogen Energy, Vol. 42, Issue 21; ISSN 0360-3199
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Analytical electrolyzer enabling operando characterization of flow plates
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journal | July 2019 |
Corrosion of metallic materials fabricated by selective laser melting
|
journal | June 2019 |
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