Method of making MEA for PEM/SPE fuel cell
Patent
·
OSTI ID:20075862
A method of making a membrane-electrode-assembly (MEA) for a PEM/SPE fuel cell comprises applying a slurry of electrode-forming material directly onto a membrane-electrolyte film. The slurry comprises a liquid vehicle carrying catalyst particles and a binder for the catalyst particles. The membrane-electrolyte is preswollen by contact with the vehicle before the electrode-forming slurry is applied to the membrane-electrolyte. The swollen membrane-electrolyte is constrained against shrinking in the ``x'' and ``y'' directions during drying. Following assembly of the fuel cell, the MEA is rehydrated inside the fuel cell such that it swells in the ``z'' direction for enhanced electrical contact with contiguous electrically conductive components of the fuel cell.
- Sponsoring Organization:
- US Department of Energy
- DOE Contract Number:
- AC02-90CH10435
- OSTI ID:
- 20075862
- Country of Publication:
- United States
- Language:
- English
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