Tohoku University Technology: Highly crystalline carbon production method, its precursor and its production method: T20-1564
Possible to produce highly crystalline carbon from sustainable resource raw material
So far, crystalline carbon material with relatively large crystallite size and relatively small average interplanar spacing has been used as anode material for lithium-ion secondary battery and catalyst material for cathode in fuel cell. This highly crystalline carbon material is made from raw materials such as hyper-eutectoid molten pig iron, natural graphite and kish graphite. However, these raw materials are depletable resources and could be depleted in the future. This invention is able to provide a highly crystalline carbon production method, its precursor production method and the precursor itself, using sustainable resources as raw material. This invention has a precursor production process in which at least one of iron, nickel or cobalt is impregnated into the raw material containing biomass which is a sustainable resource, followed by heat treatment to obtain a precursor, and a carbonization process in which the precursor is carbonized by heating and then washed by acid. This invention allows the production of highly crystalline carbon and its precursor.
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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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