{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,21]],"date-time":"2026-08-21T13:33:11Z","timestamp":1787319191948,"version":"build-2736575974"},"reference-count":46,"publisher":"Wiley","issue":"52","license":[{"start":{"date-parts":[[2024,10,31]],"date-time":"2024-10-31T00:00:00Z","timestamp":1730332800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100015956","name":"Special Project for Research and Development in Key areas of Guangdong Province","doi-asserted-by":"publisher","award":["2023B0909010001"],"award-info":[{"award-number":["2023B0909010001"]}],"id":[{"id":"10.13039\/501100015956","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"published-print":{"date-parts":[[2024,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Aqueous iron\u2010ion batteries with reversible storage of Fe\n                    <jats:sup>2+<\/jats:sup>\n                    have undergone rapid development in recent years. Consistently throughout these studies, metallic iron is selected as the anode material. However, the large overpotential (250\u00a0mV) associated with the plating\/stripping process of iron in aqueous solutions leads to unsatisfactory energy efficiency of the battery, although high capacity and Coulomb efficiency can be achieved. Herein, an iron\u2010free anode material, 9,10\u2010anthraquinone (AQ) is proposed in aqueous iron\u2010ion batteries, which shows a low reaction potential and minimal polarization during storing iron ions. The organic anode exhibits favorable specific capacity of 106\u00a0mAh\u00a0g\n                    <jats:sup>\u22121<\/jats:sup>\n                    at 0.5\u00a0A\u00a0g\n                    <jats:sup>\u22121<\/jats:sup>\n                    and excellent cycling stability (92.6% retention after 500 cycles). In addition, an aqueous full iron\u2010ion battery is constructed using AQ as the anode and 9,10\u2010phenanthraquinone (PQ) as the cathode. The full battery demonstrates an enhanced energy efficiency of 72%, which is 206% higher than that of metal iron anode, and shows excellent cycling stability and Coulombic efficiency. This work provides a viable route to overcome the high polarization of metallic iron anode and promote the development of aqueous iron\u2010ion batteries.\n                  <\/jats:p>","DOI":"10.1002\/smll.202407715","type":"journal-article","created":{"date-parts":[[2024,10,31]],"date-time":"2024-10-31T04:31:14Z","timestamp":1730349074000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Iron\u2010Free Anode Boosting High Energy Efficiency Aqueous Full Iron\u2010Ion Batteries"],"prefix":"10.1002","volume":"20","author":[{"given":"Chang","family":"Li","sequence":"first","affiliation":[{"name":"School of Advanced Materials Peking University Shenzhen Graduate School  Shenzhen 518055 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinyu","family":"Guo","sequence":"additional","affiliation":[{"name":"School of Advanced Materials Peking University Shenzhen Graduate School  Shenzhen 518055 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