Novel synthesis and electrochemical properties of perovskite-type NaFeF3 for a sodium-ion battery

Ayuko Kitajou; Hideyuki Komatsu; Kuniko Chihara; Irina D. Gocheva; Shigeto Okada; Jun Ichi Yamaki

doi:10.1016/j.jpowsour.2011.09.064

Novel synthesis and electrochemical properties of perovskite-type NaFeF₃ for a sodium-ion battery

Ayuko Kitajou, Hideyuki Komatsu, Kuniko Chihara, Irina D. Gocheva, Shigeto Okada, Jun Ichi Yamaki

Department of Advanced Device Materials

Research output: Contribution to journal › Article › peer-review

64 Citations (Scopus)

Abstract

Highly crystallized perovskite-type NaFeF₃ has been investigated as the cathode for sodium-ion batteries through the roll-quench method. In the charge-discharge measurement, the first discharge capacity was 197 mAh g _?1 at a rate of 0.076 mA cm^?2 between 1.5 V and 4.5 V. Reversible Fe²⁺/Fe³⁺ redox reaction on cycle was confirmed by XPS. The ex situ XRD measurements for charged or discharged NaFeF ₃ pellets revealed the reversible vibration on cycle, due to the structure strength and flexibility of the corner-sharing matrix. The peak intensities of (1 1 2) and (0 0 4) were changed with accompanying insertion/extraction of sodium, suggesting the extracted sodium has returned to the original 4c site on discharge.

Original language	English
Pages (from-to)	389-392
Number of pages	4
Journal	Journal of Power Sources
Volume	198
DOIs	https://doi.org/10.1016/j.jpowsour.2011.09.064
Publication status	Published - Jan 15 2012

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.jpowsour.2011.09.064

Cite this

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title = "Novel synthesis and electrochemical properties of perovskite-type NaFeF3 for a sodium-ion battery",

abstract = "Highly crystallized perovskite-type NaFeF3 has been investigated as the cathode for sodium-ion batteries through the roll-quench method. In the charge-discharge measurement, the first discharge capacity was 197 mAh g ?1 at a rate of 0.076 mA cm?2 between 1.5 V and 4.5 V. Reversible Fe2+/Fe3+ redox reaction on cycle was confirmed by XPS. The ex situ XRD measurements for charged or discharged NaFeF 3 pellets revealed the reversible vibration on cycle, due to the structure strength and flexibility of the corner-sharing matrix. The peak intensities of (1 1 2) and (0 0 4) were changed with accompanying insertion/extraction of sodium, suggesting the extracted sodium has returned to the original 4c site on discharge.",

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AU - Kitajou, Ayuko

AU - Komatsu, Hideyuki

AU - Chihara, Kuniko

AU - Gocheva, Irina D.

AU - Okada, Shigeto

AU - Yamaki, Jun Ichi

PY - 2012/1/15

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AB - Highly crystallized perovskite-type NaFeF3 has been investigated as the cathode for sodium-ion batteries through the roll-quench method. In the charge-discharge measurement, the first discharge capacity was 197 mAh g ?1 at a rate of 0.076 mA cm?2 between 1.5 V and 4.5 V. Reversible Fe2+/Fe3+ redox reaction on cycle was confirmed by XPS. The ex situ XRD measurements for charged or discharged NaFeF 3 pellets revealed the reversible vibration on cycle, due to the structure strength and flexibility of the corner-sharing matrix. The peak intensities of (1 1 2) and (0 0 4) were changed with accompanying insertion/extraction of sodium, suggesting the extracted sodium has returned to the original 4c site on discharge.

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