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However, their practical applications are hindered by sluggish diffusion kinetics stemming from the large steric hindrance of bulky chloroaluminate ions within the densely packed crystalline lattices, as well as severe capacity fading caused by undesirable structural stability in the electrolyte. Herein, we present an amorphous polymerization strategy to construct high\u2010capacity polyimide\u2010based positive electrode materials for stable aluminum\u2010polymer batteries via rational imidization molecular structure design. Benefiting from the amorphous structure with a large surface area, enhanced active site accessibility, and improved structural stability, the polyimide\u2010based positive electrodes deliver a high specific capacity (191 mAh g\n                    <jats:sup>\u22121<\/jats:sup>\n                    at 50 mA g\n                    <jats:sup>\u22121<\/jats:sup>\n                    ), an improved rate capability (135 mAh g\n                    <jats:sup>\u22121<\/jats:sup>\n                    at 500 mA g\n                    <jats:sup>\u22121<\/jats:sup>\n                    ), and prolonged long\u2010term cycling stability (95% capacity retention over 2400 cycles at 1 A g\n                    <jats:sup>\u22121<\/jats:sup>\n                    ). The superior electrochemical performance is attributed to the amorphization\u2010facilitated bipolar\u2010redox charge storage mechanism, in which imide carbonyl groups (AlCl\n                    <jats:sub>2<\/jats:sub>\n                    <jats:sup>+<\/jats:sup>\n                    coordination mechanism) and extended conjugated polycyclic aromatic hydrocarbons (AlCl\n                    <jats:sub>4<\/jats:sub>\n                    <jats:sup>\u2212<\/jats:sup>\n                    adsorption mechanism) alternately serve as redox\u2010active sites within the polyimide segments. These findings highlight a molecular imidization strategy for designing active polymeric materials to construct robust polymer\u2010based RABs for safe energy storage.\n                  <\/jats:p>","DOI":"10.1002\/anie.2153127","type":"journal-article","created":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T16:47:20Z","timestamp":1775926040000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["An Amorphous Polyimide\u2010Based Positive Electrode for High\u2010Capacity and Durable Aluminum Dual\u2010Ion Batteries"],"prefix":"10.1002","volume":"65","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-9248-3941","authenticated-orcid":false,"given":"Xiaodong","family":"Chen","sequence":"first","affiliation":[{"name":"State Key Laboratory of Advanced Processing and Recycling of Non\u2010Ferrous Metals Lanzhou University of Technology  Lanzhou Gansu 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