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Title: Li{sub 1+x}Fe{sub 1{minus}3x}Ti{sub 1+2x}O{sub 4} (0.0 {le} x {le} 0.33) based spinels: Possible negative electrode materials for future Li-ion batteries

Abstract

Members of the spinel solid solution between LiFeTiO{sub 4} and Li{sub 4}Ti{sub 5}O{sub 12}, i.e., Li{sub 1+x}Fe{sub 1{minus}3x}Ti{sub 1+2x}O{sub 4} (0.0 {le} x {le} 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{sup +}/Li. Results are promising with anodic capacities in excess of 200 mAh g{sup {minus}1} or {approximately}700 mAh cm{sup {minus}3} being obtained over 25 cycles for x = 0.33. Samples containing Fe have reduced reversible capacity, however, the capacity below 1.00 V{sub Li} 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.

Authors:
; ;
Publication Date:
Research Org.:
Univ. of St. Andrews, Fife (GB)
OSTI Identifier:
20003925
Resource Type:
Journal Article
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 146; Journal Issue: 11; Other Information: PBD: Nov 1999; Journal ID: ISSN 0013-4651
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; SPINELS; ANODES; LITHIUM; IRON; TITANIUM; OXIDES; ELECTRIC BATTERIES

Citation Formats

Robertson, A D, Tukamoto, H, and Irvine, J T.S. Li{sub 1+x}Fe{sub 1{minus}3x}Ti{sub 1+2x}O{sub 4} (0.0 {le} x {le} 0.33) based spinels: Possible negative electrode materials for future Li-ion batteries. United States: N. p., 1999. Web. doi:10.1149/1.1392576.
Robertson, A D, Tukamoto, H, & Irvine, J T.S. Li{sub 1+x}Fe{sub 1{minus}3x}Ti{sub 1+2x}O{sub 4} (0.0 {le} x {le} 0.33) based spinels: Possible negative electrode materials for future Li-ion batteries. United States. doi:10.1149/1.1392576.
Robertson, A D, Tukamoto, H, and Irvine, J T.S. Mon . "Li{sub 1+x}Fe{sub 1{minus}3x}Ti{sub 1+2x}O{sub 4} (0.0 {le} x {le} 0.33) based spinels: Possible negative electrode materials for future Li-ion batteries". United States. doi:10.1149/1.1392576.
@article{osti_20003925,
title = {Li{sub 1+x}Fe{sub 1{minus}3x}Ti{sub 1+2x}O{sub 4} (0.0 {le} x {le} 0.33) based spinels: Possible negative electrode materials for future Li-ion batteries},
author = {Robertson, A D and Tukamoto, H and Irvine, J T.S.},
abstractNote = {Members of the spinel solid solution between LiFeTiO{sub 4} and Li{sub 4}Ti{sub 5}O{sub 12}, i.e., Li{sub 1+x}Fe{sub 1{minus}3x}Ti{sub 1+2x}O{sub 4} (0.0 {le} x {le} 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{sup +}/Li. Results are promising with anodic capacities in excess of 200 mAh g{sup {minus}1} or {approximately}700 mAh cm{sup {minus}3} being obtained over 25 cycles for x = 0.33. Samples containing Fe have reduced reversible capacity, however, the capacity below 1.00 V{sub Li} 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.},
doi = {10.1149/1.1392576},
journal = {Journal of the Electrochemical Society},
issn = {0013-4651},
number = 11,
volume = 146,
place = {United States},
year = {1999},
month = {11}
}