Liquid-phase synthesis of highly dispersed NaFeF3 particles and their electrochemical properties for sodium-ion batteries

Yosuke Yamada, Takayuki Doi, Ichiro Tanaka, Shigeto Okada, Jun Ichi Yamaki

Research output: Contribution to journalArticle

134 Citations (Scopus)

Abstract

Highly dispersed NaFeF3 particles were prepared at 280 °C by liquid-phase synthesis using high-boiling-point organic solution, and their electrochemical properties were studied by charge and discharge measurements. TEM observation clarified that the resultant NaFeF3 particles had uniform particle sizes of ca. 10-20, 100-200, and 500-600 nm, which could be controlled by the composition of the synthetic solution. The discharge capacities were higher for NaFeF3 that had smaller particle sizes, particularly at a rate of 0.1 C or higher, while the discharge capacities obtained at a rate of 0.01 C between 1.5 and 4.5 V were almost the same in the range 170-181 mAh g-1 regardless of the particle size of NaFeF 3. These results clearly indicate that the use of well-dispersed nano-sized NaFeF3 particles should effectively improve the rate performance of NaFeF3.

Original languageEnglish
Pages (from-to)4837-4841
Number of pages5
JournalJournal of Power Sources
Volume196
Issue number10
DOIs
Publication statusPublished - May 15 2011

All Science Journal Classification (ASJC) codes

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

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