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Updated: Jul 14, 2026
11:04
Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
Brønsted acid-base ionic liquids for fuel cell electrolytes
Hirofumi Nakamoto1, Masayoshi Watanabe
1Department of Chemistry and Biotechnology, Yokohama National University, 79-5 Tokiwadai, Hodogaya ward, Yokohama, 240-8501, Japan.
Chemical Communications (Cambridge, England)
|June 15, 2007
Summary
A novel protic ionic liquid functions effectively as a fuel cell electrolyte without humidification. This material offers high open-circuit potential, a broad liquid temperature range, and excellent thermal stability for energy applications.
Area of Science:
- Electrochemistry
- Materials Science
- Chemical Engineering
Background:
- Fuel cells are crucial for clean energy conversion.
- Developing non-humidifying electrolytes is a key challenge.
- Protic ionic liquids offer potential as alternative electrolytes.
Purpose of the Study:
- To investigate a simple protic ionic liquid as a fuel cell electrolyte.
- To evaluate its performance under non-humidifying conditions.
- To assess key performance metrics like potential, temperature range, and stability.
Main Methods:
- Synthesis of a protic ionic liquid from diethylmethylamine and trifluoromethanesulfonic acid.
- Testing the ionic liquid as an electrolyte in a medium-temperature fuel cell.
- Measuring open-circuit potential, liquid temperature range, and thermal stability.
Main Results:
- The protic ionic liquid demonstrated high and stable open-circuit potential.
- A wide liquid temperature range was observed.
- Excellent thermal stability was achieved under non-humidifying conditions.
Conclusions:
- This protic ionic liquid is a promising electrolyte for medium-temperature fuel cells operating without humidification.
- Its properties suggest potential for enhanced fuel cell performance and durability.
- Further research into its long-term performance and scalability is warranted.
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