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Ion-Conducting Ceramics Lab
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The lab aims to build fuel cells that operate at intermediate temperatures using ceramics that conduct hydrogen ions.
AboutAbout the lab
Developing ceramics that conduct hydrogen ions
The Hyodo Lab develops ceramic materials that conduct hydrogen ions and electrons.
Its goal is to realize proton-conducting ceramic fuel cells that operate in an intermediate temperature range of about 200 to 400°C.
Fuel cells currently in practical use are expensive, so there is an urgent need to lower the operating temperature to an intermediate range, reduce material and maintenance costs, and make inexpensive fuel cells widely available.
The lab belongs to the Energy System Design Research Center of the International Institute for Carbon-Neutral Energy Research (I2CNER), Kyushu University.
Key terms
- proton-conducting ceramics
- Ceramic materials that conduct hydrogen ions (protons)
- solid electrolyte
- A solid material that conducts ions. The lab develops it as a component of fuel cells.
- lattice strain
- Distortion of the lattice, the arrangement of atoms that make up a crystal
ResearchResearch themes
With the aim of realizing a carbon-neutral society by 2050, fuel cells that can extract electrical energy from hydrogen without emitting CO2 are attracting attention. The lab develops new solid electrolyte materials and solid electrode materials that operate at 200 to 400°C. It aims for efficient development by extending fundamental knowledge, obtained through electrochemical measurements and advanced analysis using X-rays, electron beams, and other probes, to applications.
*Illustrative imageMaterials for Fuel Cells That Operate at Intermediate Temperatures
The lab develops new solid electrolyte materials and solid electrode materials, based on ceramics that conduct hydrogen ions and electrons, that enable operation at 200 to 400°C.
*Illustrative imageSearching for Materials with Machine Learning
Using experimental data and machine learning, the lab aims to accelerate the development of new proton-conducting ceramics. It also uses thermogravimetric analysis and electrochemical measurements.
*Illustrative imageRelationship Between Interface Strain and Conduction
The lab investigates how the lattice strain that forms at the interface where proton-conducting ceramics meet another material affects proton conduction. It also uses secondary ion mass spectrometry.
MembersFaculty
The members of the Hyodo Lab consist of faculty members, academic researchers, and master's and undergraduate students.As of 2026
- Associate ProfessorJunji Hyodo
VoicesStudent voices
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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: “KSC-06pd0005 - Technicians working on fuel cell in OPF” Kim Shiflett / Public domain (cropped)
- Materials for Fuel Cells That Operate at Intermediate Temperatures: “Ceramic membrane (crossflow filtration)” Wikiwayman (talk) / CC BY-SA 3.0 (cropped)
- Searching for Materials with Machine Learning: “Kaolinite crystal structure” Kent G. Budge / CC0 (cropped)
- Relationship Between Interface Strain and Conduction: “Chitosan Thin Film” D.S. Soriano / CC BY 4.0 (cropped)
- Related lab (〈イオン伝導性セラミックス〉): “Breakdown of a ceramic tube” Korzhenkozos / CC BY 4.0 (cropped)
- Related lab (〈環境調和型セラミックス〉): “Bromothymol blue solution in a measuring flask” Haidar.fg / CC0 (cropped)
- Related lab (環境調和型セラミックス
（稲田 幹） ): “XérogelSolGel” The original uploader was Fred-Chap at French Wikipedia. / CC BY-SA 3.0 (cropped) - Related lab (〈プロトン伝導性酸化物〉): “Electrolysis Apparatus” Ivan Akira / CC BY-SA 3.0 (cropped)
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