Rechargeable sodium-ion battery based on a cathode of copper hexacyanoferrate

In this work, the performance of copper (II) hexacyanoferrate(III) (CuHCF) as a cathode material for sodium-ion batteries was studied. The compound was synthesized by a precipitation reaction in aqueous solution in a closed system. The morphology and structure show nanoparticles agglomerated with si...

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Veröffentlicht in:Journal of solid state electrochemistry 2023-04, Vol.27 (4), p.865-872
Hauptverfasser: Rojas, Víctor, Cáceres, Gustavo, López, Silvana, Henríquez, Rodrigo, Grez, Paula, Schrebler, Ricardo, Navarrete, Emilio, Herrera, Francisco, Caballero, Álvaro, Gómez-Cámer, Juan Luis, Aristizábal, Juliet, Muñoz, Eduardo
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Sprache:eng
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Zusammenfassung:In this work, the performance of copper (II) hexacyanoferrate(III) (CuHCF) as a cathode material for sodium-ion batteries was studied. The compound was synthesized by a precipitation reaction in aqueous solution in a closed system. The morphology and structure show nanoparticles agglomerated with sizes ranging between 40 and 70 nm and a crystalline phase with a cubic structure, respectively. The material exhibited a stable performance with a working potential of around 3.4 V vs. Na + /Na. The gravimetric capacity obtained is close to 30 mAh g −1 for 100 cycles at a rate of C/20, which is around half of the capacity for CuHCF when it encounters water in its structure, e.g., zeolite-type (60 mAh g −1 ), which is less than the theoretical capacity for this material (85.1 mAh g −1 ). CuHCF could be a promising cathode material for sodium-ion batteries considering its electrochemical performance.
ISSN:1432-8488
1433-0768
DOI:10.1007/s10008-023-05388-y