Motoaki Matsuo

Major research activity

We contribute to solve environmental and energy problems for building of a sustainable society by developing new energy-related materials. The main subject is the developments of “high-density hydrogen storage materials” for fuel cell application and “solid-state ion-conducting materials” applicable to solid electrolytes for next generation rechargeable batteries. We explore solid-state materials composed of light-weight metals which can store and release hydrogen reversibly at moderate temperatures and pressures with fast kinetics on the former subject. We also develop novel solid-state hydrides in which Li and Na ions can hop easily, as if they move in liquids, at near or below ambient temperature on the latter subject.

Major relevant publications

1. M. Matsuo, Y. Nakamori, S. Orimo, H. Maekawa and H. Takamura, “Lithium super-ionic conduction in lithium borohydride accompanied by structural transition”, Applied Physics Letters 91, 224103(1)–(3) (2007).
2. M. Matsuo, A. Remhof, P. Martelli, R. Capputo, M. Ernst, Y. Miura, T. Sato, H. Oguchi, H. Maekawa, H. Takamura, A. Borgschulte, A. Züttel and S. Orimo, “Complex hydrides with (BH4)– and (NH2)– anions as new lithium fast-ion conductors”, Journal of the American Chemical Society 131, 16389–16391 (2009).
3. M. Matsuo and S. Orimo, “Lithium fast-ionic conduction in complex hydrides, Review and prospects”, Advanced Energy Materials 1, 161–172 (2011).
4. M. Matsuo, D. Matsumura, Y. Nishihata, G. Li, N. Hiyama, S. Semboshi and S. Orimo, “Experimental studies of complex hydride YMn2H6 on formation kinetics and X-ray absorption fine structure analyses”, Applied Physics Letters 100, 044101(1)–(3) (2012).
5. M. Matsuo, S. Kuromoto, T. Sato, H. Oguchi, H. Takamura and S. Orimo, “Sodium ionic conduction in complex hydrides with [BH4]– and [NH2]– anions”, Applied Physics Letters 100, 203904(1)–(4) (2012).