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Synergistic Theoretical and Experimental Insights into NH 4 + -Enhanced Vanadium Oxide Cathodes for Aqueous Zinc-Ion Batteries.
- Source :
-
Molecules . Jun2024, Vol. 29 Issue 12, p2834. 16p. - Publication Year :
- 2024
-
Abstract
- This study explores the enhancement of aqueous zinc-ion batteries (AZIBs) using ammonium-enhanced vanadium oxide cathodes. Density Functional Theory (DFT) calculations reveal that NH4+ incorporation into V6O16 lattices significantly facilitates Zn2+ ion diffusion by reducing electrostatic interactions, acting as a structural lubricant. Subsequent experimental validation using (NH4)2V6O16 cathodes synthesized via a hydrothermal method corroborates the DFT findings, demonstrating remarkable electrochemical stability with a capacity retention of 90% after 2000 cycles at 5 A g−1. These results underscore the potential of NH4+ in improving the performance and longevity of AZIBs, providing a pathway for sustainable energy storage solutions. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14203049
- Volume :
- 29
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- Molecules
- Publication Type :
- Academic Journal
- Accession number :
- 178185117
- Full Text :
- https://doi.org/10.3390/molecules29122834