Nanocrystalline MgMnSiO4 and MgCoSiO4 particles for rechargeable Mg-ion batteries

Quang Duc Truong, Murukanahally Kempaiah Devaraju, Itaru Honma

Research output: Contribution to journalArticlepeer-review

21 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 Jan 1

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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