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

127 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

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Electrochemical properties
electric batteries
liquid phases
Sodium
Particle size
sodium
Ions
Liquids
synthesis
ions
Boiling point
Discharge (fluid mechanics)
Transmission electron microscopy
Chemical analysis
boiling
transmission electron microscopy

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

Cite this

Liquid-phase synthesis of highly dispersed NaFeF3 particles and their electrochemical properties for sodium-ion batteries. / Yamada, Yosuke; Doi, Takayuki; Tanaka, Ichiro; Okada, Shigeto; Yamaki, Jun Ichi.

In: Journal of Power Sources, Vol. 196, No. 10, 15.05.2011, p. 4837-4841.

Research output: Contribution to journalArticle

Yamada, Yosuke ; Doi, Takayuki ; Tanaka, Ichiro ; Okada, Shigeto ; Yamaki, Jun Ichi. / Liquid-phase synthesis of highly dispersed NaFeF3 particles and their electrochemical properties for sodium-ion batteries. In: Journal of Power Sources. 2011 ; Vol. 196, No. 10. pp. 4837-4841.
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