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dc.contributor.author | Hiroi, Satoshi | en |
dc.contributor.author | Oishi, Masatsugu | en |
dc.contributor.author | Ohara, Koji | en |
dc.contributor.author | Shimoda, Keiji | en |
dc.contributor.author | Kabutan, Daiki | en |
dc.contributor.author | Uchimoto, Yoshiharu | en |
dc.contributor.alternative | 廣井, 慧 | ja |
dc.contributor.alternative | 大石, 昌嗣 | ja |
dc.contributor.alternative | 尾原, 幸治 | ja |
dc.contributor.alternative | 下田, 景士 | ja |
dc.contributor.alternative | 株丹, 大輝 | ja |
dc.contributor.alternative | 内本, 喜晴 | ja |
dc.date.accessioned | 2022-10-21T01:30:09Z | - |
dc.date.available | 2022-10-21T01:30:09Z | - |
dc.date.issued | 2022-10-20 | - |
dc.identifier.uri | http://hdl.handle.net/2433/276824 | - |
dc.description | リチウムイオン電池正極の低結晶層状構造を支える2種類の支柱. 京都大学プレスリリース. 2022-09-05. | ja |
dc.description.abstract | Intensive research is underway to further enhance the performance of lithium-ion batteries (LIBs). To increase the capacity of positive electrode materials, Li-rich layered oxides (LLO) are attracting attention but have not yet been put to practical use. The structural mechanisms through which LLO materials exhibit higher capacity than conventional materials remain unclear because their disordered phases make it difficult to obtain structural information by conventional analysis. The X-ray total scattering analysis reveals a disordered structure consisting of metal ions in octahedral and tetrahedral sites of Li layers as a result of cation mixing after the extraction of Li ions. Metal ions in octahedral sites act as rigid pillars. The metal ions move to the tetrahedral site of the Li layer, which functions as a Li-layer pillar during Li extraction, and returns to the metal site during Li insertion, facilitating Li diffusion as an adaptive pillar. Adaptive pillars are the specific structural features that differ from those of the conventional layered materials, and their effects are responsible for the high capacity of LLO materials. An essential understanding of the pillar effects will contribute to design guidelines for intercalation-type positive electrodes for next-generation LIBs. | en |
dc.language.iso | eng | - |
dc.publisher | Wiley | en |
dc.rights | © 2022 The Authors. Small published by Wiley-VCH GmbH | en |
dc.rights | This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. | en |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | adaptive pillars | en |
dc.subject | cation mixing | en |
dc.subject | Li-rich layered oxides | en |
dc.subject | lithium-ion batteries | en |
dc.subject | pair distribution function | en |
dc.subject | positive electrode materials | en |
dc.subject | X-ray total scattering measurements | en |
dc.title | Adaptive Cation Pillar Effects Achieving High Capacity in Li-Rich Layered Oxide, Li₂MnO₃-LiMeO₂ (Me = Ni, Co, Mn) | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | Small | en |
dc.identifier.volume | 18 | - |
dc.identifier.issue | 42 | - |
dc.relation.doi | 10.1002/smll.202203412 | - |
dc.textversion | publisher | - |
dc.identifier.artnum | 2203412 | - |
dc.address | Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute (JASRI) | en |
dc.address | Graduate School of Technology, Industrial and Social Sciences, Tokushima University | en |
dc.address | Diffraction and Scattering Division, Japan Synchrotron Radiation Research Institute (JASRI) | en |
dc.address | Office of Society-Academia Collaboration for Innovation, Kyoto University | en |
dc.address | Graduate School of Technology, Industrial and Social Sciences, Tokushima University | en |
dc.address | Graduate School of Human and Environment Studies, Kyoto University | en |
dc.identifier.pmid | 36052573 | - |
dc.relation.url | https://www.kyoto-u.ac.jp/ja/research-news/2022-09-05-1 | - |
dcterms.accessRights | open access | - |
datacite.awardNumber | 20H02846 | - |
datacite.awardNumber | 19H05814 | - |
datacite.awardNumber | 20K15031 | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20H02846/ | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PLANNED-19H05814/ | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20K15031/ | - |
dc.identifier.pissn | 1613-6810 | - |
dc.identifier.eissn | 1613-6829 | - |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.awardTitle | 酸素アニオン制御による新規電極反応を用いた高エネルギー密度正極材料の創造 | ja |
jpcoar.awardTitle | 高度計測の統合利用による蓄電固体界面の物理化学局所状態の解明 | ja |
jpcoar.awardTitle | X線全散乱を利用した非晶・結晶混合物に対する革新的構造解析技術の確立 | ja |
出現コレクション: | 学術雑誌掲載論文等 |
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