Li1 + xFe1 − 3xTi1 + 2x O 4 (0.0 ≤ x ≤ 0.33) based spinels: possible negative electrode materials for future Li-ion batteries

A. D. Robertson*, H. Tukamoto, J. T S Irvine

*Corresponding author for this work

Research output: Contribution to journalArticle

88 Citations (Scopus)

Abstract

Members of the spinel solid solution between LiFeTiO4 and Li4Ti5O12, i.e., Li1+xFe1-3xTi1+2xO4 (0.0≤x≤0.33) have been investigated as possible negative electrodes for future lithium-ion batteries. Electrochemical behavior and associated structural changes have been investigated over the potential range 0.01-2.6 V vs. Li+/Li. Results are promising with anodic capacities in excess of 200 mAh g-1 or approximately 700 mAh cm-3 being obtained over 25 cycles for x = 0.33. Samples containing Fe have reduced reversible capacity, however, the capacity below 1.00 VLi is greatly increased. A spinel-type structure is retained upon lithiation for all compositions studied, however, the degree of cation disorder increases with Fe content.

Original languageEnglish
Pages (from-to)3958-3962
Number of pages5
JournalJournal of the Electrochemical Society
Volume146
Issue number11
DOIs
Publication statusPublished - 1 Nov 1999
Externally publishedYes

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Solid solutions
Positive ions
Electrodes
Chemical analysis
Cations
Lithium-ion batteries
spinell

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title = "Li1 + xFe1 − 3xTi1 + 2x O 4 (0.0 ≤ x ≤ 0.33) based spinels: possible negative electrode materials for future Li-ion batteries",
abstract = "Members of the spinel solid solution between LiFeTiO4 and Li4Ti5O12, i.e., Li1+xFe1-3xTi1+2xO4 (0.0≤x≤0.33) have been investigated as possible negative electrodes for future lithium-ion batteries. Electrochemical behavior and associated structural changes have been investigated over the potential range 0.01-2.6 V vs. Li+/Li. Results are promising with anodic capacities in excess of 200 mAh g-1 or approximately 700 mAh cm-3 being obtained over 25 cycles for x = 0.33. Samples containing Fe have reduced reversible capacity, however, the capacity below 1.00 VLi is greatly increased. A spinel-type structure is retained upon lithiation for all compositions studied, however, the degree of cation disorder increases with Fe content.",
author = "Robertson, {A. D.} and H. Tukamoto and Irvine, {J. T S}",
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Li1 + xFe1 − 3xTi1 + 2x O 4 (0.0 ≤ x ≤ 0.33) based spinels : possible negative electrode materials for future Li-ion batteries. / Robertson, A. D.; Tukamoto, H.; Irvine, J. T S.

In: Journal of the Electrochemical Society, Vol. 146, No. 11, 01.11.1999, p. 3958-3962.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Li1 + xFe1 − 3xTi1 + 2x O 4 (0.0 ≤ x ≤ 0.33) based spinels

T2 - possible negative electrode materials for future Li-ion batteries

AU - Robertson, A. D.

AU - Tukamoto, H.

AU - Irvine, J. T S

PY - 1999/11/1

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AB - Members of the spinel solid solution between LiFeTiO4 and Li4Ti5O12, i.e., Li1+xFe1-3xTi1+2xO4 (0.0≤x≤0.33) have been investigated as possible negative electrodes for future lithium-ion batteries. Electrochemical behavior and associated structural changes have been investigated over the potential range 0.01-2.6 V vs. Li+/Li. Results are promising with anodic capacities in excess of 200 mAh g-1 or approximately 700 mAh cm-3 being obtained over 25 cycles for x = 0.33. Samples containing Fe have reduced reversible capacity, however, the capacity below 1.00 VLi is greatly increased. A spinel-type structure is retained upon lithiation for all compositions studied, however, the degree of cation disorder increases with Fe content.

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DO - 10.1149/1.1392576

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