{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T06:09:10Z","timestamp":1789711750227,"version":"4.0.1"},"reference-count":40,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T00:00:00Z","timestamp":1789603200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T00:00:00Z","timestamp":1789603200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["22508403"],"award-info":[{"award-number":["22508403"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003399","name":"Science and Technology Commission of Shanghai Municipality","doi-asserted-by":"publisher","award":["25DZ3002802"],"award-info":[{"award-number":["25DZ3002802"]}],"id":[{"id":"10.13039\/501100003399","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100015524","name":"China Three Gorges Corporation","doi-asserted-by":"publisher","award":["WWKY\u20102021\u20100027"],"award-info":[{"award-number":["WWKY\u20102021\u20100027"]}],"id":[{"id":"10.13039\/100015524","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["advanced.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Advanced Materials"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Ligand design is crucial for enhancing all\u2010iron flow batteries\u2019 (AIFB) electrochemical performance. This work proposes design principles of ligands for AIFB based on coordination chemistry theory, and designs a class of ethylenediamine derivative ligands. These principles integrate three key functions: (1) regulation of Fe\n                    <jats:sup>II<\/jats:sup>\n                    \/Fe\n                    <jats:sup>III<\/jats:sup>\n                    potential through coordination functional groups, (2) enhancement of iron\u2010complex solubility via hydrophilic modification and molecular asymmetry design, (3) improvement of cycling stability through hexadentate chelation and size exclusion effect. Herein, N,N\u2032\u2010dimethyl\u2010N,N\u2032\u2010(2\u2010(2\u2032\u2010pyridyl)\u20106\u2010pyridylmethyl) ethylenediamine (EDMB) and N,N\u2032\u2010di(2\u2010hydroxybenzyl) ethylenediamine\u2010N,N\u2032\u2010diacetic Acid (HBED) are designed as catholyte and anolyte ligands of AIFB. An AIFB with a voltage of 1.32\u00a0V is designed, which can cycle stably for 13\u00a0000 times. To further enhance the battery's energy density, a more hydrophilic anolyte ligand, SHBED, is designed. Ultimately, the solubilities of Fe\u2013EDMB and Fe\u2013SHBED reach 1.85 and 1.97\u00a0mol L\n                    <jats:sup>\u22121<\/jats:sup>\n                    , respectively. The AIFB can cycle normally with catholyte and anolyte concentrations of 1.5 and 1.25\u00a0mol L\n                    <jats:sup>\u22121<\/jats:sup>\n                    . It shows record specific capacity and energy density of 18.27 Ah L\n                    <jats:sup>\u22121<\/jats:sup>\n                    and 21.01\u00a0Wh L\n                    <jats:sup>\u22121<\/jats:sup>\n                    , almost doubled compared to the currently reported highest energy density of AIFB. Although this design principle is only validated on ethylenediamine derivative ligands, its underlying logic can be extended to other iron\u2010based ligands.\n                  <\/jats:p>","DOI":"10.1002\/adma.74997","type":"journal-article","created":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T05:40:35Z","timestamp":1789710035000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Ethylenediamine Derivative Ligands and Design Principles for High\u2010Performance All\u2010Iron Flow Batteries"],"prefix":"10.1002","author":[{"given":"Chang","family":"Liu","sequence":"first","affiliation":[{"name":"Shanghai Institute of Ceramics Chinese Academy of Sciences  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dongfang","family":"Dong","sequence":"additional","affiliation":[{"name":"Shanghai Institute of Ceramics Chinese Academy of Sciences  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mingda","family":"Luo","sequence":"additional","affiliation":[{"name":"Shanghai Institute of Ceramics Chinese Academy of Sciences  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1788-8045","authenticated-orcid":false,"given":"Xiaowei","family":"Chi","sequence":"additional","affiliation":[{"name":"Shanghai Institute of Ceramics Chinese Academy of Sciences  Shanghai China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7261-455X","authenticated-orcid":false,"given":"Yu","family":"Liu","sequence":"additional","affiliation":[{"name":"Shanghai Institute of Ceramics Chinese Academy of Sciences  Shanghai 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