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Takamura-Ishii Lab
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The lab builds fuel cells and batteries from ceramics, aiming for a decarbonized society.
AboutAbout the lab
Energy materials for a decarbonized society.
The Takamura-Ishii Lab develops materials and devices that convert energy with high efficiency, in order to build a decarbonized society.
One example is the solid oxide fuel cell, which can convert hydrogen into electricity with high efficiency.
The lab also studies systems that produce high-purity hydrogen from natural gas, which are essential for the wider adoption of fuel cells.
It also works on a wide variety of ceramics, including all-solid-state batteries (a next-generation type of rechargeable battery), exhaust gas purification catalysts, and display materials.
Key terms
- Solid oxide fuel cell
- A device that uses a ceramic electrolyte to generate electricity directly from fuels such as hydrogen
- Proton
- Another name for a hydrogen ion. It is lighter than an oxide ion and moves easily even at low temperatures
- All-solid-state battery
- A rechargeable battery that uses a solid electrolyte instead of a liquid electrolyte
NewsLab news
Paper on lithium-ion conduction in polymorphic LiAlO2 published in Inorganic Chemistry
Research by a doctoral student published in Journal of Materials Chemistry A
Paper on replacing hydrogen with hydride in a proton conductor published in Journal of Materials Chemistry A
ResearchResearch themes
To realize a decarbonized society, the lab develops functional materials and devices that enable highly efficient energy conversion. Its work covers new solid electrolytes, electrodes, and thin-film technologies, as well as hydrogen production, all-solid-state batteries, and exhaust gas purification catalysts.
*Illustrative imageSolid oxide fuel cells
These energy conversion devices offer high power generation efficiency and can use many types of fuel, so their practical use is especially anticipated. The lab develops devices that use a ceramic thin film conducting both oxygen ions and electrons well as the air electrode (cathode), aiming to operate them at lower temperatures.
*Illustrative imageProton-conducting ceramics
Current fuel cells and high-temperature steam electrolysis cells are made of ceramics that conduct oxide ions and operate at high temperatures of about 750°C, which raises issues of durability and cost. Because protons move more easily than oxide ions, the lab aims to develop cells that operate at around 500°C.
*Illustrative imageHydrogen production with oxygen permeable membranes
Partial oxidation reforming, which uses oxygen, is attracting attention as a way to produce hydrogen from natural gas. The lab developed a membrane that passes only the oxygen in air as ions, and built a prototype of a small reformer that automatically supplies the oxygen needed for reforming.
*Illustrative imageCeramics that absorb and release oxygen
To break down harmful substances in automobile exhaust with a catalyst, the ratio of oxygen taken in must be controlled precisely. The lab studies ceramics that absorb and release oxygen, which are used as the support for such catalysts.
MembersFaculty
The Takamura-Ishii Lab consists of faculty members, technical assistants, PhD and master's students, and undergraduates.As of 2026
- ProfessorHitoshi Takamura
- Assistant ProfessorAkihiro Ishii
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: “Cerium dioxide sample” Leiem / CC BY-SA 4.0 (cropped)
- Solid oxide fuel cells: “Ceria-3D-ionic” Benjah-bmm27 / Public domain (cropped)
- Proton-conducting ceramics: “Perovskite” Cadmium at English Wikipedia / Public domain (cropped)
- Hydrogen production with oxygen permeable membranes: “Cerium(IV) oxide” User:Walkerma. / Public domain (cropped)
- Ceramics that absorb and release oxygen: “Car tailpipe emissions 1” DeFacto / CC BY-SA 3.0 (cropped)
- Related lab (Yamada Lab): “Si3N4bearings” David W. Richerson and Douglas W. Freitag; Oak Ridge National Laboratory (federal lab.) / Public domain (cropped)
- Related lab (Orimo Lab): “Sodium-borohydride-3D-balls” CCoil (talk) / CC BY-SA 3.0 (cropped)
- Related lab (Kumagai Lab): “NIO defect surface” Dmurra01 / CC BY-SA 3.0 (cropped)
- Related lab (Todoroki Lab): “An example of an electrolytic ozone generator” Mdemyer / CC BY-SA 4.0 (cropped)
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