TiF3 catalyzed MgH2 as a Li/Na ion battery anode

Yaolin Xu, Fokko M. Mulder

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)
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Abstract

MgH2 has been considered as a potential anode material for Li ion batteries due to its low cost and high theoretical capacity. However, it suffers from low electronic conductivity and slow kinetics for hydrogen sorption at room temperature that results in poor reversibility, cycling stability and rate capability for Li ion storage. This work presents a MgH2–TiF3@CNT based Li ion battery anode manufactured via a conventional slurry based method. Working with a liquid electrolyte at room temperature, it achieves a high capacity retention of 543 mAh g−1 in 70 cycles at 0.2 C and an improved rate capability, thanks to the improved hydrogen sorption kinetics with the presence of catalytic TiF3. Meanwhile, the first realization of Na ion uptake in MgH2 has been evidenced in experiments.

Original languageEnglish
Pages (from-to)20033
Number of pages20040
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number43
DOIs
Publication statusPublished - 2018

Bibliographical note

Accepted Author Manuscript

Keywords

  • Li ion battery
  • MgH
  • Na ion battery
  • TiF

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