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Department of Energy and Environment

Promoting green innovation

To promote green innovation, AIST is developing technologies for increased use of alternative energy technologies, such as renewable energy sources that reduce greenhouse gas emissions (energy creation), high-density storage of energy (energy storage), highly efficient conversion and use of energy (energy saving), effective utilization of energy resources, and evaluation and reduction of environmental risks.

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New Research Results

Development of High-speed Polishing Technology for Large Diameter SiC Wafers for Power Semiconductors

Researchers in AIST developed lapping technology that achieved high-speed planarization of SiC wafers in collaboration with Mizuho Co., Ltd. and Fujikoshi Machinery Corp. In particular, 12 times the polishing speed was achieved in the previously slow mirror finishing process. The new batch processing technology demonstrated the comparable surface quality to that of a mirror grinding process using the single wafer processing method.

Figure of new research results Energy and Environment

Developed equipment configuration

Development of High-performance Electrode for Nanostructure-controlled Solid Oxide Fuel Cell (SOFC)

Researchers in AIST developed a nanostructure-controlled high-performance air electrode in a study performed under the Advanced Technology Consortium for Solid State Energy Conversion (ASEC), which is engaged in strategic joint research with multiple companies. In addition, an SOFC single cell equipped with the developed electrode exhibited world top-level power generation performance.
In addition to the self-assembled nanocomposite air electrode fabricated using the pulsed laser deposition (PLD) method, the SOFC single cell is equipped with a nanocolumnar porous current collector and nanocomposite fuel electrode functional layer, which were developed to fully demonstrate the performance of the air electrode. The resulting single cell achieved the world top-level power density of 4.5 W/cm2 or more at 700 °C. This achievement will contribute to the reduction of the SOFC cell stack size and manufacturing costs.
Details of the results were published in the open access journal Nature Communications (electronic version) on June 25, 2021.

Figure of new research results Energy and Environment

Schematic diagram of fuel-electrode-supported SOFC single cell that achieved world top-level power generation performance: Red text indicates newly developed materials

Research Unit

Open Innovation Laboratory

Since FY 2016, as a part of the “Open Innovation Arena concept” promoted by the Ministry of Economy, Trade and Industry (METI), AIST has created the concept of “open innovation laboratories” (OILs), collaborative research bases located on university campuses, and has been engaged in their provision. We are planning to establish more than ten OILs by FY 2020.

AIST will merge the basic research carried out at universities, etc. with AISTʼs goal-oriented basic research and applied technology development, and will promote bridging research and evelopment and industry by the establishment of OILs.


Cooperative Research Laboratories

In order to conduct research and development more closely related to strategies of companies, we have established collaborative research laboratories, bearing partner company names.

Partner companies provide their researchers and funding, and AIST provides research resources, such as its researchers, research facilities, and intellectual property. The loaned researchers of companies and AIST researchers jointly conduct research and development.

By setting up cooperative research laboratories, we will accelerate the commercialization of our goal-oriented basic research and application research with partner companies.

  • Shimizu-AIST Zero Emission Hydrogen town Cooperative Research Laboratory

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