Nanocrystalline MgMnSiO4 and MgCoSiO4 particles for rechargeable Mg-ion batteries

Quang Duc Truong, Murukanahally Kempaiah Devaraju, Itaru Honma

    Research output: Contribution to journalArticlepeer-review

    41 Citations (Scopus)

    Abstract

    Magnesium-ion batteries hold promise as next-generation secondary battery systems owing to its low cost, safety and high volumetric capacity. Magnesium metal silicates exhibit potential electrode materials with high specific capacities. However, the strong electrostatic interaction between Mg2+ and host lattice due to its divalency as well as antisite cation exchange, induces slow intercalation kinetics of Mg ions within the crystal lattices. Thus, nanocrystalline particles with shortened Mg ion diffusion distance enable the insertion/extraction of Mg ions and improve specific capacities of the batteries. Herein, we report the low-temperature production of crystalline MgMnSiO4 and MgCoSiO4 nanoparticles by a rapid supercritical fluid processing. The extraction of magnesium ions from the olivine framework has been confirmed by X-ray photoelectron spectroscopy, revealing its ability as active materials for magnesium-ion battery.

    Original languageEnglish
    Pages (from-to)195-202
    Number of pages8
    JournalJournal of Power Sources
    Volume361
    DOIs
    Publication statusPublished - 2017

    Keywords

    • Magnesium-ion battery
    • MgCoSiO
    • MgMnSiO
    • Nanoparticles
    • Olivine

    ASJC Scopus subject areas

    • Renewable Energy, Sustainability and the Environment
    • Energy Engineering and Power Technology
    • Physical and Theoretical Chemistry
    • Electrical and Electronic Engineering

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