Battery Japan Technical Conference Program

BJ-2 Latest Trends in the Development of All-solid-state Lithium-ion Batteries
Feb. 27 (Wed) 13:00 - 15:00
コースリーダー: Course Leader:  Hironori Kobayashi, National Institute of Advanced Industrial Science and Technology (AIST) Hironori Kobayashi, National Institute of Advanced Industrial Science and Technology (AIST)
サブコースリーダー: Sub Course Leader:  Tetsuya Osaka, Waseda University Tetsuya Osaka, Waseda University

Overcoming the Limitations of Solid-state Li-garnet Batteries

We have developed transformational, and intrinsically safe, solid-state Li batteries (SSLiBs), by incorporating high conductivity garnet-type solid Li-ion electrolytes into tailored microstructures, by low-cost multilayer ceramic fabrication techniques. The microstructurally tailored porous garnet structure overcomes the high impedance typical of SSLiBs resulting in low area specific resistance and further allows for charge/discharge of the Li-metal anode and cathode scaffolds by pore-filling, thus providing high depth of discharge ability without mechanical cycling fatigue. The ability to cycle Li-metal at high current densities with no dendrite formation, and results for Li-metal batteries with a number of different cathode chemistries will be presented.
University of Maryland Maryland Energy Innovation Institute, Director & Professor, Eric Wachsman Eric Wachsman Director & Professor, Maryland Energy Innovation Institute, University of Maryland
講演者プロフィールSpeaker Profile
Dr. Eric D Wachsman is Director of the Maryland Energy Innovation Institute, and Crentz Centennial Chair in Energy Research at the University of Maryland. He is a Fellow of The Electrochemical Society (ECS) and the American Ceramic Society, Vice President of ECS, and Editor-in-Chief of Ionics. His research is focused on solid ion-conducting materials, and the development of solid-state fuel cells, batteries, ion-transport membrane reactors, and gas sensors. He has more than 250 publications and 17 patents on ionic materials and device performance and to date 3 companies have been founded based on these technologies.

Sulfur-based Solid Electrolyte and its Resistance Reduction Technology

Sulfur-based solid electrolytes exhibit not only high ion conductivity but also good processability; i.e. they deform easily when pressed. We have investigated the influence of processing method of solid electrolyte on the electrochemical property. Using the basic knowledge, we have developed battery materials technologies to enhance the performance of all-solid-state batteries.
Idemitsu Kosan Co., Ltd. Advanced Technology Research Labs., Manager, Advanced Battery Materials Research Lab., Hiroyuki Higuchi Hiroyuki Higuchi Manager, Advanced Battery Materials Research Lab., Advanced Technology Research Labs., Idemitsu Kosan Co., Ltd.

Development of Low-temperature-sintering Processes for Assembling Oxide-based Solid-state Battery

Oxide-based solid-state Li-ion batteries should feature accelerated Li-ion transfer at the oxide/oxide interface. However, most electrodes easily thermochemical-react with the electrolyte, which complicates the fabrication of desirable interfaces by powder sintering. In this talk, some low-temperature sinterable electrolytes and manufacturing processes for assembling solid-state batteries would be introduced.
National Institute of Advanced Industrial Science and Technology Advanced Electrochemical Device Research Group, Research Institute of Electrochemical Energy, Senior Researcher, Toyoki Okumura Toyoki Okumura Senior Researcher, Advanced Electrochemical Device Research Group, Research Institute of Electrochemical Energy, National Institute of Advanced Industrial Science and Technology

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