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Ion-Conducting Ceramics Lab
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A lab aiming for fuel cells that run at intermediate temperatures, using materials that conduct hydrogen ions.
AboutAbout the lab
Ceramics that pass hydrogen ions, toward low-cost fuel cells.
The Hyodo Lab develops ceramic materials that conduct hydrogen ions and electrons, aiming to realize protonic ceramic fuel cells (PCFCs).
Fuel cells, which can extract electrical energy from hydrogen without emitting CO2, are drawing attention as a way to achieve a carbon-neutral society by 2050.
Because the fuel cells in practical use today are expensive, the lab aims to lower material and maintenance costs by bringing the operating temperature down to an intermediate range of about 200–400°C.
The lab belongs to the Energy Systems Design Research Center of the International Institute for Carbon-Neutral Energy Research, and its website presents it under the name “Hyodo Lab.”
Key terms
- Proton-conducting ceramics
- Ceramic materials that transport hydrogen ions (protons). This lab aims to use them in fuel cells.
- Solid electrolyte
- A solid material inside a fuel cell that lets ions pass through.
- Machine learning
- A method in which computers find patterns in large amounts of data, used for prediction and for selecting candidate materials.
ResearchResearch themes
This lab develops ceramic materials that conduct hydrogen ions and electrons, aiming to realize protonic ceramic fuel cells (PCFCs) that run at intermediate temperatures of about 200–400°C. The high cost of fuel cells is seen as a challenge, and the lab seeks to lower material and maintenance costs by bringing the operating temperature into the intermediate range.
*Illustrative imageDeveloping materials for fuel cells that run at intermediate temperatures
Aiming at fuel cells that operate at 200–400°C, the lab develops new solid electrolyte and electrode materials, as well as fuel cell devices that use them. Insights gained through advanced analysis using X-rays, electron beams, and other probes are applied to development.
*Illustrative imageFinding new proton conductors with machine learning
This research combines experimental data with machine learning to accelerate the development of new proton-conducting ceramics. Thermogravimetric analysis and electrochemical measurements are also listed among the research keywords.
MembersFaculty
The Hyodo Lab consists of faculty members, academic researchers, and master's and undergraduate students.As of 2026
- Associate ProfessorJunji Hyodo
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Breakdown of a ceramic tube” Korzhenkozos / CC BY 4.0 (cropped)
- Developing materials for fuel cells that run at intermediate temperatures: “KSC-06pd0002 - Fuel cell removed from Discovery in OPF” Kim Shiflett / Public domain (cropped)
- Finding new proton conductors with machine learning: “Perovskite crystal structure (Yamanaka-Hirai-Komatsu 2002) crystallographic standard alignment” Ra'ike (Wikipedia) / CC0 (cropped)
- Related lab (Ion-Conducting Ceramics Lab): “KSC-06pd0005 - Technicians working on fuel cell in OPF” Kim Shiflett / Public domain (cropped)
- Related lab (Environmentally Friendly Ceramics Lab): “Bromothymol blue solution in a measuring flask” Haidar.fg / CC0 (cropped)
- Related lab (Environmentally Friendly Ceramics Lab (Miki Inada)): “XérogelSolGel” The original uploader was Fred-Chap at French Wikipedia. / CC BY-SA 3.0 (cropped)
- Related lab (Proton-Conducting Oxides Lab): “Electrolysis Apparatus” Ivan Akira / CC BY-SA 3.0 (cropped)
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