Tokyo Institute of Technology
Institute Professor, Director of Research Center for All-Solid-State Battery,

Ryoji Kanno

All-solid-state batteries, which consist entirely of solids components, are being developed as the energy storage devices for the next generation. This lecture reviews the research and technological development history of this device and provides topics related to solid-state batteries, including future development and new science that can be expected when batteries become solid-state.

Maxell
Business Development Department, New Business Producing Division,
Senior Manager,

Dr. Masayuki Yamada

In April 1996, Masayuki Yamada joined Hitachi Maxell, Ltd. (currently Maxell, Ltd.), where he started his carrier as a member of R&D of new materials for phosphors and batteries. After transferred to Energy Division in 2011, he was engaged in design and development of lithium-ion batteries with high energy density and successfully commercialized high-performance batteries such as prismatic lithium-ion batteries using a SiO negative-electrode. From 2016, he was responsible for new battery development including all-solid-state batteries, and since 2021, he has been a development director of all-solid-state batteries in New Business Produce Division.

Lithium argyrodite-type solid electrolytes are expected to be applied to a variety of market fields because of their excellent properties not only in ionic-conductivity but also in formability and thermal stability. In this talk, the features, battery properties, and future prospects of all-solid-state batteries using argyrodite-type solid electrolyte will be presented.