Reconversion Reaction of LiF/Fe Composite Thin Film Cathodes for Lithium-Ion Battery

Hironobu Hori; Shigeto Okada

doi:10.5796/electrochemistry.83.909

Reconversion Reaction of LiF/Fe Composite Thin Film Cathodes for Lithium-Ion Battery

Hironobu Hori, Shigeto Okada

Department of Advanced Device Materials

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

6 Citations (Scopus)

Abstract

The reconversion reaction of lithium fluoride (LiF)/iron (Fe) nanocomposite thin film cathodes prepared with the codeposition method was investigated at room temperature. The LiF:Fe in molar ratio of 1:1 composite thin film was able to be discharged with large capacity of 300mAhg?1 after the reconversion reaction on the first charge at 25°C. After the 2nd cycle, it showed relatively stable reversible capacity more than 200mAhg?1. The discharge profile with 2V plateau was similar to that of ferrous fluoride (FeF2), and the trace of FeF2 was detected in the fully-charged LiF/Fe nanocomposite thin film by X-ray photoelectron spectroscopy (XPS). These results suggest that the reconversion reaction from LiF/Fe to FeF2 proceeded successfully on the first charge as we expected.

Original language	English
Pages (from-to)	909-913
Number of pages	5
Journal	Electrochemistry
Volume	83
Issue number	10
DOIs	https://doi.org/10.5796/electrochemistry.83.909
Publication status	Published - 2015

All Science Journal Classification (ASJC) codes

Electrochemistry

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10.5796/electrochemistry.83.909

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title = "Reconversion Reaction of LiF/Fe Composite Thin Film Cathodes for Lithium-Ion Battery",

abstract = "The reconversion reaction of lithium fluoride (LiF)/iron (Fe) nanocomposite thin film cathodes prepared with the codeposition method was investigated at room temperature. The LiF:Fe in molar ratio of 1:1 composite thin film was able to be discharged with large capacity of 300mAhg?1 after the reconversion reaction on the first charge at 25°C. After the 2nd cycle, it showed relatively stable reversible capacity more than 200mAhg?1. The discharge profile with 2V plateau was similar to that of ferrous fluoride (FeF2), and the trace of FeF2 was detected in the fully-charged LiF/Fe nanocomposite thin film by X-ray photoelectron spectroscopy (XPS). These results suggest that the reconversion reaction from LiF/Fe to FeF2 proceeded successfully on the first charge as we expected.",

author = "Hironobu Hori and Shigeto Okada",

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AU - Hori, Hironobu

AU - Okada, Shigeto

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AB - The reconversion reaction of lithium fluoride (LiF)/iron (Fe) nanocomposite thin film cathodes prepared with the codeposition method was investigated at room temperature. The LiF:Fe in molar ratio of 1:1 composite thin film was able to be discharged with large capacity of 300mAhg?1 after the reconversion reaction on the first charge at 25°C. After the 2nd cycle, it showed relatively stable reversible capacity more than 200mAhg?1. The discharge profile with 2V plateau was similar to that of ferrous fluoride (FeF2), and the trace of FeF2 was detected in the fully-charged LiF/Fe nanocomposite thin film by X-ray photoelectron spectroscopy (XPS). These results suggest that the reconversion reaction from LiF/Fe to FeF2 proceeded successfully on the first charge as we expected.

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Reconversion Reaction of LiF/Fe Composite Thin Film Cathodes for Lithium-Ion Battery

Abstract

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