20.500.12556/DiRROS-23832 Toward practical aluminum organic batteries featuring covalent organic framework In recent years, Al metal organic batteries have attracted significant interest due to their promise of sustainability and high volumetric energy densities, while being based on abundant materials. However, many studies assess their performance with insufficient rigor, often emphasizing high capacity and power performance, as well as cycling stability at very high cycling rates. Herein, the feasibility of a highly stable β-ketoenamine-linked anthraquinone-based covalent organic framework (DAAQ-TFP-COF) for rechargeable Al batteries is reassessed. First, the influence of different voltage windows on electrochemical behavior in an ionic liquid electrolyte, identifying an optimal balance between capacity and stability, is investigated. Within the optimized voltage window of 0.5 to 2.0 V, DAAQ-TFP-COF achieves a capacity of 113.9 mAh g−1 at 50 mA g−1. To gain deeper insight into the charge storage mechanism, surface- and bulk-sensitive characterization techniques—energy-dispersive X-ray spectroscopy and X-ray Raman spectroscopy—confirming monovalent AlCl2+ as the main coordination species are employed. Finally, the compatibility of DAAQ-TFP-COF with more cost-effective amide-based Al electrolytes is evaluated. In butyramide-based electrolyte, the organic material exhibits stable performance and high Coulombic efficiency. Based on our findings, a realistic outlook on the key challenges that must be addressed to advance COF-based electrodes for future aluminum battery applications is provided. rechargable batteries aluminum metal batteries covalent organic framework elektrokemija organsko-kovinske baterije baterije za večkratno polnjenje Raman spektroskopija aluminij true false true Angleški jezik Slovenski jezik © 2025 The Author(s). ChemSusChem published by Wiley-VCH GmbH Neznano 2025-10-09 09:00:41 2025-10-09 09:18:51 2025-10-24 03:55:09 0000-00-00 00:00:00 2025 0 0 Nasl. z nasl. zaslona; Soavtorji iz Slovenije: Ava Rajh, Urban Košir, Robert Dominko, Klemen Bučar, Matjaž Kavčič, Jan Bitenc; Opis vira z dne 2. 9. 2025; str. 1-9 iss. 19 Vol. 18 1. Oct. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-10-01 544.5/.6 1864-564X 10.1002/cssc.202500965 247349507 https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/cssc.202500965 1 acfb55e5-a4dd-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=35342 RAZ_Luzanin_Olivera_2025.pdf RAZ_Luzanin_Olivera_2025.pdf 1 920ECDF65F7B539191ABEE4C6D0569C3 fc1f35daff290ffdf8c4f4a93095bc48d930f3a48b186d50f1afa422f66d255f f27419b3-a4df-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=35343 Kemijski inštitut 0 0 0