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However, the pronounced degradation of Na\n                    <jats:sup>+<\/jats:sup>\n                    diffusion at high voltage hinders their fast\u2010charging capability. Herein, a Ti\n                    <jats:sup>4+<\/jats:sup>\n                    \u2010doping\u2010induced bridge\u2010bond\u2010polarity\u2010driven strategy is proposed to reshape the V electronic structure for facilitating V\u2500O electron exchange. Correspondingly, voltage hysteresis, polarization, and structural distortion at high voltage are suppressed, accompanied by enhanced electronic conductivity. Meanwhile, the polar V\u2500O\u2500Ti bridge bonds expand the dominant one\u2010 and two\u2010dimensional Na\n                    <jats:sup>+<\/jats:sup>\n                    transport channels by inducing bridging\u2010O displacement, further boosting Na\n                    <jats:sup>+<\/jats:sup>\n                    migration capability. Therefore, Na\n                    <jats:sub>3<\/jats:sub>\n                    V\n                    <jats:sub>1.92<\/jats:sub>\n                    Ti\n                    <jats:sub>0.08<\/jats:sub>\n                    O(PO\n                    <jats:sub>4<\/jats:sub>\n                    )\n                    <jats:sub>2<\/jats:sub>\n                    F\n                    <jats:sub>2<\/jats:sub>\n                    with V\u2500O\u2500Ti delivers high capacities of 121.8 and 62.1\u00a0mA\u00a0h\u00a0g\n                    <jats:sup>\u22121<\/jats:sup>\n                    at 0.1C and 50C, respectively, while maintaining excellent cycling stability. Additionally, the 0.92\u2010Ah Na\n                    <jats:sub>3<\/jats:sub>\n                    V\n                    <jats:sub>1.92<\/jats:sub>\n                    Ti\n                    <jats:sub>0.08<\/jats:sub>\n                    O(PO\n                    <jats:sub>4<\/jats:sub>\n                    )\n                    <jats:sub>2<\/jats:sub>\n                    F\n                    <jats:sub>2<\/jats:sub>\n                    \/\/HC pouch cell exhibits 80% capacity retention after 1000 cycles at 1C. At the 9 Ah scale, the pouch cell achieves a high energy density of 154\u00a0Wh\u00a0kg\n                    <jats:sup>\u22121<\/jats:sup>\n                    . This synergistic reinforcement strategy driven by bridge\u2010bond polarity paves the way for sustainable high\u2010power polyanionic SIBs.\n                  <\/jats:p>","DOI":"10.1002\/anie.6142534","type":"journal-article","created":{"date-parts":[[2026,10,11]],"date-time":"2026-10-11T02:55:07Z","timestamp":1791687307000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["V\u2500O\u2500Ti Bridge\u2010Bond Polarity Boosts Na\n                    <sup>+<\/sup>\n                    Migration in V\u2010Based Fluorophosphates for Fast Sodium Storage"],"prefix":"10.1002","author":[{"given":"Bochao","family":"Chen","sequence":"first","affiliation":[{"name":"State Key Laboratory of Advanced Chemical Power Sources Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Academy for Advanced Interdisciplinary Studies College of Chemistry Nankai University  Tianjin P. 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