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タイトル: | A reversible oxygen redox reaction in bulk-type all-solid-state batteries |
著者: | Nagao, Kenji Nagata, Yuka Sakuda, Atsushi Hayashi, Akitoshi Deguchi, Minako Hotehama, Chie Tsukasaki, Hirofumi Mori, Shigeo Orikasa, Yuki Yamamoto, Kentaro https://orcid.org/0000-0002-8739-4246 (unconfirmed) Uchimoto, Yoshiharu https://orcid.org/0000-0002-1491-2647 (unconfirmed) Tatsumisago, Masahiro |
著者名の別形: | 山本, 健太郎 内本, 喜晴 |
発行日: | 17-Jun-2020 |
出版者: | American Association for the Advancement of Science (AAAS) |
誌名: | Science Advances |
巻: | 6 |
号: | 25 |
論文番号: | eaax7236 |
抄録: | An all-solid-state lithium battery using inorganic solid electrolytes requires safety assurance and improved energy density, both of which are issues in large-scale applications of lithium-ion batteries. Utilization of high-capacity lithium-excess electrode materials is effective for the further increase in energy density. However, they have never been applied to all-solid-state batteries. Operational difficulty of all-solid-state batteries using them generally lies in the construction of the electrode-electrolyte interface. By the amorphization of Li₂RuO₃ as a lithium-excess model material with Li₂SO₄, here, we have first demonstrated a reversible oxygen redox reaction in all-solid-state batteries. Amorphous nature of the Li₂RuO₃-Li₂SO₄ matrix enables inclusion of active material with high conductivity and ductility for achieving favorable interfaces with charge transfer capabilities, leading to the stable operation of all-solid-state batteries. |
著作権等: | Copyright © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S.Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). |
URI: | http://hdl.handle.net/2433/261687 |
DOI(出版社版): | 10.1126/sciadv.aax7236 |
PubMed ID: | 32596439 |
出現コレクション: | 学術雑誌掲載論文等 |
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