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タイトル: | Real-time observations of lithium battery reactions-operando neutron diffraction analysis during practical operation. |
著者: | Taminato, Sou Yonemura, Masao Shiotani, Shinya Kamiyama, Takashi Torii, Shuki Nagao, Miki Ishikawa, Yoshihisa Mori, Kazuhiro https://orcid.org/0000-0003-1085-4096 (unconfirmed) Fukunaga, Toshiharu Onodera, Yohei https://orcid.org/0000-0002-3080-6991 (unconfirmed) Naka, Takahiro Morishima, Makoto Ukyo, Yoshio Adipranoto, Dyah Sulistyanintyas Arai, Hajime Uchimoto, Yoshiharu https://orcid.org/0000-0002-1491-2647 (unconfirmed) Ogumi, Zempachi Suzuki, Kota Hirayama, Masaaki Kanno, Ryoji |
著者名の別形: | 米村, 雅雄 神山, 崇 森, 一広 福永, 俊晴 右京, 良雄 荒井, 創 内本, 喜晴 小久見, 善八 菅野, 了次 |
発行日: | 30-Jun-2016 |
出版者: | Springer Nature |
誌名: | Scientific reports |
巻: | 6 |
論文番号: | 28843 |
抄録: | Among the energy storage devices for applications in electric vehicles and stationary uses, lithium batteries typically deliver high performance. However, there is still a missing link between the engineering developments for large-scale batteries and the fundamental science of each battery component. Elucidating reaction mechanisms under practical operation is crucial for future battery technology. Here, we report an operando diffraction technique that uses high-intensity neutrons to detect reactions in non-equilibrium states driven by high-current operation in commercial 18650 cells. The experimental system comprising a time-of-flight diffractometer with automated Rietveld analysis was developed to collect and analyse diffraction data produced by sequential charge and discharge processes. Furthermore, observations under high current drain revealed inhomogeneous reactions, a structural relaxation after discharge, and a shift in the lithium concentration ranges with cycling in the electrode matrix. The technique provides valuable information required for the development of advanced batteries. |
記述: | 充放電しているリチウム電池の内部挙動の解析に成功―中性子線を用い非破壊かつリアルタイム観測により実現―. 京都大学プレスリリース. 2016-07-06. |
著作権等: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
URI: | http://hdl.handle.net/2433/215875 |
DOI(出版社版): | 10.1038/srep28843 |
PubMed ID: | 27357605 |
関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2016-07-06-0 |
出現コレクション: | 学術雑誌掲載論文等 |
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