Skip to content

Research at St Andrews

University > Research portal > Research publications > Enhanced cycling performance of magnesium doped lithium coba...

Enhanced cycling performance of magnesium doped lithium cobalt phosphate

Research output: Contribution to journal › Article

DOI

Open Access Status

  • Embargoed (until 26/09/20)

Author(s)

Eun Jeong Kim, David Miller, John T. S. Irvine, A. Robert Armstrong

School/Research organisations

Abstract

The cycling performance of LiCoPO4 (LCP) as a high voltage positive electrode material in lithium‐ion batteries is enhanced by partial magnesium substitution for cobalt. Structural investigation of magnesium‐doped LCP using combined powder neutron and X‐ray diffraction reveals a decrease in anti‐site defects. In addition, the reduced unit cell volume variation during the charging process is observed by operando X‐ray diffraction measurements. Characterisation of the surface shows the presence of a Mg‐rich layer on the surface that might prevent detrimental reactions with the electrolyte. The combined beneficial effects of magnesium doping in LCP result in improved capacity retention.
Close
More...

Details

Original languageEnglish
JournalChemElectroChem
Volume6
Issue number18
DOIs
Publication statusPublished - 26 Sep 2019

    Research areas

  • Lithium cobalt phosphate, Lithium ion battery, Magnesium doping, High voltage positive electrode materials, Operando XRD

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Improved electrochemical performance of LiCoPO4 using eco-friendly aqueous binders

    Kim, E. J., Yue, X., Irvine, J. T. S. & Armstrong, A. R., 1 Nov 2018, In : Journal of Power Sources. 403, p. 11-19 9 p.

    Research output: Contribution to journal › Article

  2. Lattice strain-enhanced exsolution of nanoparticles in thin films

    Han, H., Park, J., Nam, S. Y., Choi, G. M., Parkin, S. S. P., Jang, H. M. & Irvine, J. T. S., 1 Dec 2019, In : Nature Communications. 10, 8 p., 1471.

    Research output: Contribution to journal › Article

  3. Hexagonal perovskite related oxide ion conductor Ba3NbMoO8.5: phase transition, temperature evolution of the local structure and properties

    Chambers, M. S., McCombie, K. S., Auckett, J. E., McLaughlin, A. C., Irvine, J. T. S., Chater, P. A., Evans, J. S. O. & Evans, I. R., 28 Nov 2019, In : Journal of Materials Chemistry. 7, 44, p. 25503-25510 8 p.

    Research output: Contribution to journal › Article

  4. Oxygen storage capacity and thermal stability of brownmillerite-type Ca2(Al1-xGax)MnO5+δ oxides

    Huang, X., Ni, C. & Irvine, J. T. S., 25 Nov 2019, In : Journal of Alloys and Compounds. 810, 151865.

    Research output: Contribution to journal › Article

  5. Nanostructured carbons containing FeNi/NiFe2O4 supported over N-doped carbon nanofibers for oxygen reduction and evolution reactions

    Aziz, I., Lee, J. G., Duran, H., Kirchhoff, K., Baker, R. T., Irvine, J. T. S. & Arshad, S. N., 11 Nov 2019, In : RSC Advances. 9, 63, p. 36586-36599 14 p.

    Research output: Contribution to journal › Article

Related by journal

  1. Analysis of the solid electrolyte interphase on hard carbon electrodes in sodium-ion batteries

    Carboni, M., Manzi, J., Armstrong, A. R., Billaud, J., Brutti, S. & Younesi, R., 7 Feb 2019, In : ChemElectroChem. Early View

    Research output: Contribution to journal › Article

  2. Cobalt diselenide nanorods grafted on graphitic carbon nitride: a synergistic catalyst for oxygen reactions in rechargeable Li-O2 battery

    Kumar, S., Jena, A., Hu, Y. C., Liang, C., Zhou, W., Hung, T-F., Chang, W-S., Chang, H. & Liu, R-S., Jan 2018, In : ChemElectroChem. 5, 1, p. 29-35

    Research output: Contribution to journal › Article

  3. In-situ thermal battery discharge using NiS2 as a cathode material

    Payne, J. L., Percival, J. D., Giagloglou, K., Crouch, C. J., Carins, G. M., Smith, R. I., Comrie, R., Gover, R. K. B. & Irvine, J. T. S., Aug 2017, In : ChemElectroChem. 4, 8, p. 1916-1923 8 p.

    Research output: Contribution to journal › Article

  4. Film quality and electronic properties of a surface-anchored metal-organic framework revealed by using a multi-technique approach

    Liu, J., Paradinas, M., Heinke, L., Buck, M., Ocal, C., Mugnaini, V. & Wöll, C., May 2016, In : ChemElectroChem. 3, 5, p. 713-718 6 p.

    Research output: Contribution to journal › Article

ID: 261240700

Top