Improving Fuel Cell Performance with Laser-Scribed Membranes
Author Information
Author(s): Chen Jianuo, Lu Xuekun, Wang Lingtao, Du Wenjia, Guo Hengyi, Rimmer Max, Zhai Heng, Liu Yuhan, Shearing Paul R., Haigh Sarah J., Holmes Stuart M., Miller Thomas S.
Primary Institution: University College London
Hypothesis
Can laser scribing enhance the performance and stability of high-temperature proton exchange membrane fuel cells?
Conclusion
Laser-scribed membranes significantly improve the performance and durability of high-temperature proton exchange membrane fuel cells, achieving a peak power density increase of 58.2%.
Supporting Evidence
- Laser-induced modification of membranes enhances the three-phase interface critical for fuel cell performance.
- Peak power density reached 817.2 mW cm⁻² after accelerated stress testing.
- Membranes treated with laser after phosphoric acid doping showed improved stability and performance.
- Three-dimensional modeling provided insights into the electrochemical processes within the membrane electrode assembly.
Takeaway
Using lasers to change the surface of fuel cell membranes makes them work better and last longer, like giving them a superpower.
Methodology
The study involved modifying proton exchange membranes using picosecond laser scribing and testing their performance in high-temperature fuel cells.
Digital Object Identifier (DOI)
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