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New Approaches to Synthesizing Nanostructured Electrode Materials Based on Double Lithium and Cobalt Phosphates in Salt Melts

  • PHYSICAL CHEMISTRY OF NANOCLUSTERS, SUPRAMOLECULAR STRUCTURES, AND NANOMATERIALS
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Abstract

A new and highly efficient way of obtaining finely dispersed LiCoPO4 powder is developed with a given morphology from ammonium substituted precursor NH4CoPO4⋅H2O in a lithium nitrate melt. It is shown that the morphology of the obtained product is determined by the morphology of the used precursor and depends on the physicochemical conditions of its preparation. The obtained LiCoPO4 and its precursors are characterized by means of XRD, SEM, and BET. Electrochemical tests show the resulting powder is electrochemically active. Cathode material based on the obtained LiCoPO4 shows a high specific discharge capacity of 110 mA h/g at a current density corresponding to a charge/discharge rate of 1C, due to the high dispersion and lamellar morphology of the particles of the synthesized powder. The proposed procedure is characterized by the speed of obtaining the target product. It does not require the use of expensive equipment or additional stages of high-temperature crystallization and grinding, and can be scaled up to industrial use.

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Funding

This work was performed as part of State Task no. FMEZ-2022-0015.

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Authors and Affiliations

  1. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center, Russian Academy of Sciences, Apatity, Russia

    N. V. Zharov, M. V. Maslova, V. I. Ivanenko & R. I. Korneikov

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  1. N. V. Zharov
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  2. M. V. Maslova
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  3. V. I. Ivanenko
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  4. R. I. Korneikov
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Correspondence to N. V. Zharov or M. V. Maslova.

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Zharov, N.V., Maslova, M.V., Ivanenko, V.I. et al. New Approaches to Synthesizing Nanostructured Electrode Materials Based on Double Lithium and Cobalt Phosphates in Salt Melts. Russ. J. Phys. Chem. 97, 2529–2535 (2023). https://doi.org/10.1134/S0036024423110365

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  • DOI: https://doi.org/10.1134/S0036024423110365

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