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Nevertheless, a significant challenge hindering the progress of SIBs is the scarcity of suitable DEEs capable of harmonizing electrolyte conductivity, interfacial compatibility, and safety. In this study, we have engineered a DEE leveraging the synergistic interplay between Na\u2010bonds and hydrogen bonds, achieved through the integration of\n                    <jats:italic>N<\/jats:italic>\n                    \u2010methylacetamide (NMA) and sodium\u2010difluoro(oxalato)borate (NaDFOB). The findings reveal that the distinctive interaction between the polar C\u2550O group in NMA and Na\n                    <jats:sup>+<\/jats:sup>\n                    ions, coupled with hydrogen bonding with DFOB\n                    <jats:sup>\u2212<\/jats:sup>\n                    anions, facilitates the formation of the DEE. The designed DEE demonstrates exceptional ionic conductivity (4.03 mS cm\n                    <jats:sup>\u22121<\/jats:sup>\n                    at 25 \u00b0C), a high oxidation voltage (4.63\u00a0V versus Na\n                    <jats:sup>+<\/jats:sup>\n                    \/Na), and nonflammability. The unique solvation structure markedly enhances the compatibility of the electrode\u2013electrolyte interface, with the NVP||Na cell exhibiting outstanding cycling performance (86.8% retention after 7000 cycles at 5 C) and superior rate capability. Moreover, the DEEs exhibit robust performance at elevated temperatures (94.3% retention after 120 cycles with NVP||Na cell), and the full cell demonstrates significant enhancements in both cycle stability (90.7% retention after 300 cycles) and rate performance. The incorporation of amide\u2010based eutectic electrolytes into SIBs infuses fresh vitality into electrolyte design, propelling the advancement of high\u2010performance SIBs.\n                  <\/jats:p>","DOI":"10.1002\/anie.202506058","type":"journal-article","created":{"date-parts":[[2025,9,23]],"date-time":"2025-09-23T13:24:14Z","timestamp":1758633854000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Synergic Coordination Effect in Nonflammable Deep Eutectic Electrolyte for High\u2010Performance Sodium\u2010Ion Batteries"],"prefix":"10.1002","volume":"64","author":[{"given":"Ao","family":"Xu","sequence":"first","affiliation":[{"name":"State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology  Wuhan 430070 P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Li","family":"Zhao","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology  Wuhan 430070 P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingyuan","family":"Yu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology  Wuhan 430070 P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei","family":"Deng","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology  Wuhan 430070 P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingni","family":"Li","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology  Wuhan 430070 P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology  Wuhan 430070 P.R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hantao","family":"Xu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and Engineering Wuhan University of Technology  Wuhan 430070 P.R. 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China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,9,23]]},"reference":[{"key":"e_1_2_7_1_1","doi-asserted-by":"publisher","DOI":"10.1039\/D3EE03141A"},{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41560-022-01144-0"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41586-022-05627-8"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1039\/D2EE01257J"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1021\/jacs.3c08224"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.202414652"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsenergylett.4c02901"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1002\/aenm.202303925"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-022-35215-3"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.nanoen.2025.110744"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/advs.202101051"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.202301817"},{"key":"e_1_2_7_13_1","volume":"11","author":"Yang C.","year":"2021","journal-title":"Adv. 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