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Electrochemical Devices and Energy Storage Materials Lab
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A lab that develops materials for fuel cells and batteries using catalytic chemistry and electrochemistry.
AboutAbout the lab
Developing and applying catalysts that contribute to energy and the environment
The Ishihara Lab studies technologies that generate and convert energy from the perspectives of catalytic chemistry and electrochemistry, with the aim of building an ideal energy-using society.
The lab investigates materials for solid oxide fuel cells, materials for lithium-ion secondary batteries, and photocatalysts and catalytic processes for producing hydrogen.
The lab is located in Research Building 2 of the International Institute for Carbon-Neutral Energy Research (I2CNER).
Key terms
- Oxygen ion conductor
- A material in which oxygen ions move through a solid. The electrolyte of a fuel cell needs oxygen ion conduction that is far greater than its electronic conduction.
- Solid oxide fuel cell
- A fuel cell that uses a solid oxide as the electrolyte. Among fuel cells, it is the most stable and has the fewest restrictions on fuel.
- High-temperature steam electrolysis
- A method that uses waste heat to electrolyze water with high efficiency and obtain hydrogen.
- Dual-carbon battery
- A secondary battery that uses graphite for both the positive and negative electrodes. It provides a high operating voltage.
NewsLab news
Master's students received awards including the Graduate School of Integrated Frontier Sciences Award and an Outstanding Poster Award
Prof. Ishihara received the Electrochemical Society of Japan Award (Takei Award)
Press release on the discovery of proton-functional materials, a research result of Associate Professor Inada
A master's student received the Excellent Research Presentation Award at the Chemistry-Related Chapters Joint Kyushu Conference
Associate Professor Inada received the JCS-Japan Excellent Paper Award from the Ceramic Society of Japan
ResearchResearch themes
To build an ideal energy-using society, the lab comprehensively investigates technologies that generate and convert energy from the perspectives of catalytic chemistry and electrochemistry. Its research is presented in two areas: functional inorganic materials and catalytic chemistry.
*Illustrative imageDeveloping new oxygen ion conductors
Mainstream materials require operation at 1000°C, whereas LSGM, developed by the lab, enables power generation at 600°C. The lab is now developing oxygen ion conductors with new compositions.
Solid oxide fuel cells that operate at low temperatures
Using LSGM, the lab has succeeded in operating solid oxide fuel cells (SOFCs) at low temperatures. To operate them at even lower temperatures, it is developing thinner LSGM films and highly active electrode catalysts.
*Illustrative imageHydrogen production by steam electrolysis
High-temperature steam electrolysis is a method that uses waste heat to electrolyze water and obtain hydrogen. Using a LaGaO3-based oxide as the solid electrolyte yields a high hydrogen production rate, and the lab is now also investigating CO2 electrolysis.
*Illustrative imageDeveloping materials for lithium-ion secondary batteries
The lab studies dual-carbon batteries, which overcome the drawbacks of conventional batteries that use rare metals in the positive electrode and excel at fast charging and discharging. It examines the effects of pretreating the positive electrode, aiming to improve cycling characteristics and capacity.
MembersFaculty
The Ishihara Lab's members are faculty, postdoctoral researchers, technical staff, and doctoral, master's, and undergraduate students.As of 2026
- ProfessorTatsumi Ishihara
- Associate ProfessorMiki Inada
- Assistant ProfessorSong Jun Tae
- Assistant ProfessorMinoru Osaki
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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: “EQCM1” Ruoha Zhao / CC BY-SA 4.0 (cropped)
- Developing new oxygen ion conductors: “Cubic zirconia (synthetic zirconium dioxide) 4” James St. John / CC BY 2.0 (cropped)
- Hydrogen production by steam electrolysis: “Schematic diagram of electrolysis-electrodialysis concentrated HIx solution” NoteDamn / Public domain (cropped)
- Developing materials for lithium-ion secondary batteries: “LR44 button cell cross section” TubeTimeUS / CC BY-SA 4.0 (cropped)
- Related lab (Fuel Cell Catalysts and Nanocarbon Lab): “Multi-nanotube” TED-43 / CC BY-SA 3.0 (cropped)
- Related lab (Perovskite Solar Cells Lab): “Perovskite tin solar cell ( )” University of Oxford Press Office / CC BY 2.0 (cropped)
- Related lab (Perovskite Solar Cells Lab (Toshinori Matsushima)): “Solar water heater on top of Santos Place” Chris Olszewski / CC BY-SA 4.0 (cropped)
- Related lab (Functional Nanomembranes and CO2 Separation Lab): “Nanostars” Julia Glazkova / CC BY 4.0 (cropped)
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