We investigate energy storage and energy conversion materials for the efficient use of electrical energy, and synthesis processes of functional materials via electrochemical operation. Current research topics are as follows:

1. Next-generation rechargeable battery materials using multivalent cations as carieer ions.
2. Elucidation and design of the mechanism of the activity of electrochemical catalysts.
3. Anticorrosion technologies using electrochemical operation.

1. A. Tamura, T. Mandai, and S. Yagi, “Modeling for Homogeneous Mg Electrodeposition on Mg Metal Negative Electrode in Rechargeable Mg batteries”, Mater. Today Commun., 48, 113325 (2025).
2. I. Oda-Bayliss, S. Yagi, M. Kamiko, K. Shimada, H. Kobayashi, and T. Ichitsubo, “Effect of Vanadium Doping on α-KxMnO2 as a Positive Electrode Active Material for Rechargeable Magnesium Batteries”, J. Mater. Chem. A, 12, 17510–17519 (2024).
3. D.Y. Huang, M. Kamiko, and S. Yagi, “Synthesis Conditions Affecting Electrochemical and Chemical Stabilities of Ga-doped Li₇La₃Zr₂O₁₂ Solid Electrolyte”, EcoEnergy, 2, 141–153 (2024).
4. W. Wang, M. Kamiko, and S. Yagi, “Co-substituted Nonstoichiometric LaMn1–xCoxO3+δ Perovskite Oxide Cathode Catalysts for the Oxygen Reduction Reaction for High-Performance Zn–Air Batteries”, J. Phys. Chem. C, 127, 13529–13537 (2023).
5. W. Liu, K. Kawano, M. Kamiko, Y. Kato, Y. Okazaki, I. Yamada, and S. Yagi, “Effects of A-site Cations in Quadruple Perovskite Ruthenates on Oxygen Evolution Catalysis in Acidic Aqueous Solutions”, Small, 18, 2202439 (2022).