Novel layered iron vanadate as a stable high-voltage cathode material for nonaqueous magnesium-ion batteries

Dedy Setiawan, Hyojeong J. Kim, Jeyne Lyoo, Seung Tae Hong, Munseok S. Chae

Research output: Contribution to journalArticlepeer-review


Magnesium-ion batteries (MIBs) have been deemed as a promising alternative to lithium-ion batteries because they can employ a Mg metal anode, potentially yielding a higher energy density. However, the lack of cathode materials capable of the reversible Mg intercalation in non-aqueous electrolytes severely limits the commercialisation of MIBs. In this study, a novel cathode material, layered iron vanadate (FeV3O9·1.1H2O), is proposed for use in non-aqueous MIBs. At 20 mA g−1, FeV3O9·1.1H2O registered a high reversible capacity and average voltage of 149 mAh/g and 2.53 V (vs. Mg/Mg2+), respectively. It also demonstrated a stable cycle life with an 85% capacity retention even after 500 discharge–charge cycles. The reversibility of the Mg intercalation reaction on this novel iron vanadate-based host was confirmed through elemental analyses, X-ray diffraction (XRD), and high-resolution transmission electron microscopy (TEM). This study offers valuable insights that could facilitate the design and development of novel oxide-based materials as high-performance cathodes for non-aqueous MIBs.

Original languageEnglish
Article number145596
JournalChemical Engineering Journal
StatePublished - 15 Oct 2023
Externally publishedYes

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2020R1A2C2007070).

Publisher Copyright:
© 2023


  • Cathode material
  • Layered iron vanadate
  • Magnesium-ion battery
  • Nonaqueous electrolyte


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