Synthesis of Na2FePO4F using polytetrafluoroethylene

Atsushi Tsu-Ura, Hirotaka Torii, Takuya Hasegawa, Dai Murayama, Sun Woog Kim, Kazuyoshi Uematsu, Kenji Toda, Mineo Sato

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Polytetrafluoroethylene (PTFE), composed of fluorine and carbon atoms, has a potential to produce carbon-coated fluorides in the calcination of inorganic compounds. We synthesized high voltage cathode material for Na ion secondary battery, Na2FePO4F, using PTFE as the carbon-coating and fluorine source. The Na2FePO4F carbon-coated by a thermal decomposition of PTFE showed high discharge capacity (64.4 mAh g11) at the first cycle of galvanostatic cycling by the improvement of conductivity.

Original languageEnglish
Pages (from-to)336-340
Number of pages5
JournalJournal of the Ceramic Society of Japan
Issue number5
Publication statusPublished - 2018 May
Externally publishedYes


  • Fluoride electrode materials
  • Na-ion battery
  • Na2FePO4F
  • Polytetrafluoroethylene

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry


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