• DEVALINA SARMAH

      Articles written in Bulletin of Materials Science

    • Elucidating the Al$^{3+}$ ion electrochemical behaviour of LiFePO$_4$

      DEVALINA SARMAH SHYAMAL K DAS

      More Details Abstract Fulltext PDF

      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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