Model-Based Control of a Continuous Coating Line for Proton Exchange Membrane Fuel Cell Electrode Assembly
Open accessAbstract
The most expensive component of a fuel cell is the membrane electrode assembly (MEA), which consists of an ionomer membrane coated with catalyst material. Best-performing MEAs are currently fabricated by depositing and drying liquid catalyst ink on the membrane; however, this process is limited to individual preparation by hand due to the membrane’s rapid water absorption that leads to shape deformation and coating defects. A continuous coating line can reduce the cost and time needed to fabricate the MEA, incentivizing the commercialization and widespread adoption of fuel cells. A pilot-scale membrane coating line was designed for such a task and is described in this paper. Accurate process control is necessary to prevent manufacturing defects from occurring in the coating line. A linear-quadratic-Gaussian (LQG) controller was developed based on a physics-based model of the coating process to optimally control the temperature and humidity of the drying zones. The process controller was implemented in the pilot-scale coating line proving effective in preventing defects.
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If statistical process control techniques and process control strategies are suitably combined, additional postproduction quality control steps may be eliminated.
“If these two measures can be suitably combined, additional postproduction quality control steps may be eliminated [233].”
From Recent Advances on PEM Fuel Cells: From Key Materials to Membrane Electrode Assembly (2023) · cites this paper as [233]
Too strong adhesion between PEM and PET leads to difficulty in peeling off the membrane from the backing film.
“Meanwhile, the adhesion should not be too strong, as this would lead to difficulty in peeling off the membrane from the backing film [233].”
From Recent Advances on PEM Fuel Cells: From Key Materials to Membrane Electrode Assembly (2023) · cites this paper as [233]
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Recent Advances on PEM Fuel Cells: From Key Materials to Membrane Electrode Assembly
Mo, S., Du, L., Huang, Z., Chen, J., Zhou, Y., Wu, P., Meng, L., Wang, N., Xing, L., Zhao, M., et al. (2023) · Electrochemical Energy Reviews · doi:10.1007/s41918-023-00190-w · Cited by 277 · see citing works
“If these two measures can be suitably combined, additional postproduction quality control steps may be eliminated [233].”
- Authors
- Devaraj, V., Lopez, L. F., Beaman, J. J., & Prudhomme, S.
- Affiliations
- The University of Texas at Austin (US)
- Polytechnique Montréal (CA)
- Corresponding author
- Devaraj, Vikram
- Venue
- International Journal of Chemical Engineering
- Publisher
- Wiley
- Published
- 2015
- Volume
- 2015
- Pages
- 1-11
- ISSN
- 1687-806X (ISSN-L)
- 1687-8078
- OpenAlex
- W1969885604
- Cited by
- 1
- References
- 0
- Citations by year
- 2023: 1
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- International Journal of Chemical Engineering (publishedVersion, cc-by)
- PolyPublie (École Polytechnique de Montréal) (submittedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- PolyPublie (École Polytechnique de Montréal) (submittedVersion)
- Funders
- Office of Naval Research (N00014-07-1-0758)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
- Physical Sciences › Engineering › Control and Systems Engineering › Advanced Control Systems Optimization
- Physical Sciences › Engineering › Control and Systems Engineering › Control Systems and Identification
- Keywords
- proton exchange membrane fuel cells, membrane electrode assembly, LQG control, model-based process control, coating defects
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