Tohoku University Technology: Positive electrode material for magnesium storage battery : T19-070
Realization of sulfur-based positive electrode material from sulfide!
Magnesium battery has being researched and developed as a promising candidate for post lithium ion battery due to its abundant reserve and high capacity per volume. Up to now, a material with chevrel structure was almost the only known positive electrode material for practical magnesium battery. However, the electromotive force is about 1 V which is low, and a material that can generate high electromotive force has been searched. This invention is about a sulfur-based positive electrode material made by electrochemical desorption from sulfide, which can solve above issues. Based on the invention concept, it is able to fabricate a "porous frame + active substance" composite material, and to provide a cathode material with a higher working potential and improved cycle characteristic than conventional material.
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The revenue generated from technology transfer is reinvested into universities and researchers as new research funding, which is used to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will actively promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by concluding 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 - Showa Medical University
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