Tohoku University Technology: Conductive material, porous material and their production method, electrode material and electrical storage device: T19-065
A good balance between large specific surface area and high conductivity
In recent years, the development of rechargeable battery using organic material has been promoted due to environmental impact and safety. For such device, activated carbon and hard carbon having a large specific surface area and high conductivity, are used as electrode material. However, activated carbon has a relatively low conductivity although its large specific surface area. Moreover, since it is manufactured using petroleum coke, it has an important environmental impact. In addition, hard carbon is manufactured only from specific tree species, making it expensive to obtain. This invention is able to provide a conductive material that can reduce manufacturing cost, a porous material having a good balance between large specific surface area and high conductivity, and their manufacturing method, as well as an electrode material and an electrical storage device using these conductive material or porous material. The conductive material consists of hard carbon derived from charcoal. The raw material can be made from easily available tree species, thus reducing production cost. Like hard carbon, this invention has graphite-structured nanodomain, so it has a large specific surface area and high electrical conductivity.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
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