2018-Sustainable Industrial Processing Summit
SIPS2018 Volume 9. Energy Production, Secondary Battery
| Editors: | F. Kongoli, H. Dodds, M. Mauntz, T. Turna, V. Kumar, K. Aifantis |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2018 |
| Pages: | 170 pages |
| ISBN: | 978-1-987820-98-0 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Flux-Crystal Growth Engineering Toward Next-generation Batteries: Electrode Material and Interfacial Designs
Katsuya Teshima1; Tetsuya Yamada1; Shuji Oishi2; Nobuyuki Zettsu1;1CENTER FOR ENERGY & ENVIRONMENTAL SCIENCE, SHINSHU UNIVERSITY, Nagano, Japan; 2CENTER FOR ENERGY & ENVIRONMENTAL SCIENCE, SHINSHU UNIVERSITY, Nagano, Japan;
Type of Paper: Keynote
Id Paper: 322
Topic: 14
Abstract:
Lithium ion secondary batteries (LIBs) have been widely used as energy-storage systems for a variety of power devices. It is necessary to further develop LIBs toward high-functional devices, such as electric vehicles and mobile electronics. Nowadays, all solid-state LIBs have been of much interest because of high energy densities and high level of safety. All solid-state LIBs provide many advantages in terms of size, flexibility, cost, and performance. However, there are serious problems to be solved toward practical uses. For example, diffusion of lithium ions at the interface between different solid materials is still poor for operating charge/discharge in batteries.
Our group has studied high-quality crystals for applications as energy and environmental materials by using a flux method. Flux method is a nature-mimetic liquid-phase crystal growth technique. It is possible to construct molten reaction field at any temperature with facile setup and give designed crystals shape, including crystal faces, which has never been achieved using other methods like solid state reaction. Recently, we have applied the flux technique to battery materials to create "all-crystal (solid)-state LIBs". We have expected that flux crystal growth gave (I) crystal-shape control of active materials, (II) construction of good interfaces in electrodes among cathodes, solid electrolytes, and anodes. As a result, smooth ionic transportation through bulks and their interfaces would be realized in all-crystal (solid)-state LIBs. Our concept using flux method would provide new aspect to make innovation in all solid state LIBs as next-generation energy storage. The details of interfacial and crystal designs of battery materials will be introduced in the SIPS2018 conference.