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Elucidating the Al$^{3+}$ ion electrochemical behaviour of LiFePO$_4$
Volume 46 Published: 4 March 2023 Article ID 0043
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https://www.ias.ac.in/article/fulltext/boms/046/0043 -
Keywords
Lithium iron phosphate ;aqueous electrolyte ;intercalation ;batteries. -
Abstract
This report illustrates an investigation on the electrochemical behaviour of LiFePO$_4$ in Al$^{3+}$ ion conducting aqueous electrolyte for the first time. It is inferred from the electrochemical measurements that Al$^{3+}$ ion together with the structural Li$^+$ ion could take part in the reversible oxidation–reduction process of LiFePO$_4$. This is also supported by the ex-situ X-ray diffraction and X-ray photoelectron spectroscopy investigations. It is also found that leaching of iron species from LiFePO$_4$ in the electrolyte results in low cycling stability. This could be mitigated to an appreciable degree by tweaking the electrolyte composition with a low fraction of iron species in the electrolyte.
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Author Affiliations
DEVALINA SARMAH SHYAMAL K DAS1
- Department of Physics, Tezpur University, Tezpur, Assam 784028, India
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Dates
- Published
- 4 March 2023
- Manuscript received
- 5 May 2022
- Accepted
- 17 October 2022
- Final version published online
- 4 March 2023
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Supplementary Material
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Bulletin of Materials Science
Volume 46, 2023
All articles
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