{"created":"2023-06-20T15:12:36.288934+00:00","id":9405,"links":{},"metadata":{"_buckets":{"deposit":"074bd250-0f82-489c-84db-544566a8750c"},"_deposit":{"created_by":3,"id":"9405","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"9405"},"status":"published"},"_oai":{"id":"oai:ynu.repo.nii.ac.jp:00009405","sets":["495:496"]},"author_link":["19251","34826","34833","34830","34834","34832","34828","34831","34827","34829"],"item_2_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018-11-29","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"47","bibliographicPageEnd":"10745","bibliographicPageStart":"10736","bibliographicVolumeNumber":"122","bibliographic_titles":[{"bibliographic_title":"Journal of Physical Chemistry B "}]}]},"item_2_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We demonstrate that Li+ hopping conduction, which cannot be explained by conventional models i.e. Onsager’s theory and Stokes’ law, emerges in highly concentrated liquid electrolytes composed of LiBF4 and sulfolane (SL). Self-diffusion coefficients of Li+ (DLi), BF4− (DBF4), and SL (DSL) were measured with pulsed field gradient NMR. In the concentrated electrolytes with molar ratios of SL/LiBF4 ≤ 3, the ratios DSL/DLi and DBF4/DLi become lower than 1, suggesting faster diffusion of Li+ than SL and BF4−, and thus the evolution of Li+ hopping conduction. X-ray crystallographic analysis of the LiBF4:SL (1:1) solvate revealed that the two oxygen atoms of the sulfone group are involved in bridging coordination of two different Li+ ions. In addition, the BF4− anion also participates in bridging coordination of Li+. Raman spectra of the highly concentrated LiBF4-SL solution suggested that Li+ ions are bridged by SL and BF4− even in the liquid state. Moreover, detailed investigation along with molecular dynamics simulations suggests that Li+ exchanges ligands (SL and BF4−) dynamically in the highly concentrated electrolytes, and Li+ hops from one coordination site to another. The spatial proximity of coordination sites, along with possible domain structure, is assumed to enable Li+ hopping conduction. Finally, we demonstrate that Li+ hopping suppresses concentration polarization in Li batteries, leading to increased limiting current density and improved rate capability compared to the conventional concentration electrolyte. Identification and rationalization of Li+ ion hopping in concentrated SL electrolytes is expected to trigger a new paradigm of understanding for such unconventional electrolyte systems. ","subitem_description_type":"Abstract"}]},"item_2_publisher_35":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"American Chemical Society"}]},"item_2_relation_13":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"info:doi/10.1021/acs.jpcb.8b09439","subitem_relation_type_select":"DOI"}}]},"item_2_rights_14":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"© 2018 American Chemical Society"}]},"item_2_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"15206106","subitem_source_identifier_type":"ISSN"}]},"item_2_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"Department of Chemistry and Biotechnology, Yokohama National University"},{"subitem_text_value":"Department of Chemistry and Biotechnology, Yokohama National University"},{"subitem_text_value":"Department of Chemistry and Biotechnology, Yokohama National University"},{"subitem_text_value":"Department of Chemistry and Biotechnology, Yokohama National University"},{"subitem_text_value":"Research Center for Computational Design of Advanced Functional Materials (CD-FMat), National Institute of Advanced Industrial Science and Technology (AIST)"},{"subitem_text_value":"Department of Materials Chemistry, Nagoya University"},{"subitem_text_value":"Department of Chemistry and Biotechnology, Yokohama National University"},{"subitem_text_value":"Department of Chemistry and Biotechnology, Yokohama National University"},{"subitem_text_value":"Graduate School of Science and Technology, Niigata University"},{"subitem_text_value":"Department of Chemistry and Biotechnology, Yokohama National University"}]},"item_2_version_type_18":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Dokko, Kaoru"}],"nameIdentifiers":[{"nameIdentifier":"34826","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"70438117 ","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=70438117 "}]},{"creatorNames":[{"creatorName":"Watanabe, Daiki"}],"nameIdentifiers":[{"nameIdentifier":"34827","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ugata, Yosuke"}],"nameIdentifiers":[{"nameIdentifier":"34828","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Thomas, Morgan L."}],"nameIdentifiers":[{"nameIdentifier":"34829","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tsuzuki, Seiji"}],"nameIdentifiers":[{"nameIdentifier":"34830","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shinoda, Wataru"}],"nameIdentifiers":[{"nameIdentifier":"34831","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Hashimoto, Kei"}],"nameIdentifiers":[{"nameIdentifier":"34832","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ueno, Kazuhide"}],"nameIdentifiers":[{"nameIdentifier":"34833","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Umebayashi, Yasuhiro"}],"nameIdentifiers":[{"nameIdentifier":"34834","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Watanabe, Masayoshi"}],"nameIdentifiers":[{"nameIdentifier":"19251","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"60158657","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=60158657"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-11-30"}],"displaytype":"detail","filename":"acs.jpcb.pdf","filesize":[{"value":"975.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"acs.jpcb","url":"https://ynu.repo.nii.ac.jp/record/9405/files/acs.jpcb.pdf"},"version_id":"c6afe6a4-cd06-4e13-a7b3-0dd44c96e317"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Direct Evidence for Li Ion Hopping Conduction in Highly Concentrated Sulfolane-Based Liquid Electrolytes","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Direct Evidence for Li Ion Hopping Conduction in Highly Concentrated Sulfolane-Based Liquid Electrolytes"}]},"item_type_id":"2","owner":"3","path":["496"],"pubdate":{"attribute_name":"公開日","attribute_value":"2018-11-14"},"publish_date":"2018-11-14","publish_status":"0","recid":"9405","relation_version_is_last":true,"title":["Direct Evidence for Li Ion Hopping Conduction in Highly Concentrated Sulfolane-Based Liquid Electrolytes"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-06-20T19:26:41.383960+00:00"}