RT Journal Article T1 Structure–Performance Relationships in Anthraquinone-Disulfonate Coordination Polymers for Li-Ion and Na-Ion Battery Cathodes A1 Ribeiro, Catarina A1 Markowski, Robert A1 Mendes, Ricardo F. A1 Fernández-Alarcón, Alberto A1 Calbo, Joaquín A1 Rocha, João A1 Vlad, Alexandru A1 Souto Salom, Manuel AB Coordination polymers (CPs) based on organic redox-active moieties offer a promising route to sustainable electrode materials for next-generation batteries. Herein, the synthesis, crystal structure determination, theoretical characterization, and electrochemical evaluation of a series of anthraquinone-disulfonate (AQDS) CPs incorporating Na+, Mg2+, and Cu2+ ions (AQDS-Na, AQDS-Mg, AQDS-Cu) as cathode materials for lithium-ion and sodium-ion storage are reported. Single-crystal X-ray diffraction reveals that AQDS-Na adopts a 3D framework, while AQDS-Mg and AQDS-Cu form 2D layered structures with coordinated water molecules. These structural differences significantly influence the electrochemical performance. For Li-ion storage, AQDS-Na delivers an initial capacity of 120 mAh g−1, while AQDS-Mg and AQDS-Cu show lower initial capacities (95 mAh g−1 and 106 mAh g−1, respectively) and faster fading. For Na-ion storage, the performance divergence is even more pronounced: AQDS-Na achieves a stable capacity of 91 mAh g−1 after 100 cycles, while AQDS-Mg and AQDS-Cu suffer from significant capacity loss (47 and 18 mAh g−1 after 100 cycles, respectively), attributed to the presence of coordinated water molecules in the 2D frameworks. This study highlights the importance of structural dimensionality and coordination environment in designing high-performance cathode materials for battery systems. PB Wiley SN 2566-6223 YR 2025 FD 2025-07-16 LK https://hdl.handle.net/10347/42975 UL https://hdl.handle.net/10347/42975 LA eng NO Ribeiro, C., Markowski, R., Mendes, R.F., Fernández-Alarcón, A., Calbo, J., Rocha, J., Vlad, A. and Souto, M. (2025), Structure–Performance Relationships in Anthraquinone-Disulfonate Coordination Polymers for Li-Ion and Na-Ion Battery Cathodes. Batteries & Supercaps 2500360. https://doi.org/10.1002/batt.202500360 NO This work has received funding from the European Research Council (ERC) under the European Union's Horizon Europe Framework Programme (ERC-2021-Starting Grant, grant agreement no. 101039748-ELECTROCOFS), from the FCT/MEC (CICECO-Aveiro Institute of Materials, UIDB/50011/2020, UIDP/50011/2020, LA/P/0006/2020), FCT (PTDC/QUI-ELT/2593/2021), from the Spanish Government (COFCAT, PID2023-152083OA-I00, PID2020-119748GA-I00 and TED2021-131255B-C44), and from the PRRPlano de Recuperação e Resiliência (NextGenerationEU funds) through the scope of the Agenda for Business Innovation “New Generation Storage” (project no. 58 with the application C644936001–00000045). This work has also received financial support from the Xunta de Galicia (Centro singular de investigación de Galicia accreditation 2023–2027, ED431G 2023/03) and the Oportunius program (Gain). A.F.-A. acknowledges Generalitat Valenciana for a postdoctoral contract (CIAPOS/2023/316). R.M. and A.V. acknowledge financial support from F.R.S.-FNRS through ASP PhD fellowship and Excellence of Science (EOS) program—ECOBAT [40007515], respectively. DS Minerva RD 26 abr 2026