Enhanced rate performance of lithium titanium oxide anode material by bromine doping

Haifang Ni; Wei Li Song; Li Zhen Fan; Yin Zhen Wang

doi:10.1007/s11581-015-1508-x

Enhanced rate performance of lithium titanium oxide anode material by bromine doping

Haifang Ni, Wei Li Song, Li Zhen Fan^*, Yin Zhen Wang

^*Corresponding author for this work

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

15 Citations (Scopus)

Abstract

Br-doped lithium titanium oxide (Li₄Ti₅O₁₂) particles in the form of Li₄Ti₅Br_xO_12-x (x = 0, 0.1, 0.2, 0.3, 0.4) are synthesized via a simple liquid deposition reaction, followed by a high-temperature treatment. The effects of bromine (Br) doping on the structures and electrochemical properties of Li₄Ti₅O₁₂ are extensively studied. It is found that Br atoms can enter the lattice structure and enlarge the lattice parameters of Li₄Ti₅O₁₂. Although Br doping has not changed the phase composition, obvious effects on the particle’s morphology and size have been observed. Electrochemical test results indicate that the rate capability of Li₄Ti₅O₁₂ has been evidently improved by Br doping at an appropriate concentration. The as-synthesized Li₄Ti₅O_11.8Br_0.2 electrode presents much higher discharge capacity and better cycle stability than that of the other electrodes. The greatly enhanced electrochemical performance of Li₄Ti₅O_11.8Br_0.2 may be attributed to the improved dispersion of nanoparticles and increased electrical conductivity.

Original language	English
Pages (from-to)	3169-3176
Number of pages	8
Journal	Ionics
Volume	21
Issue number	12
DOIs	https://doi.org/10.1007/s11581-015-1508-x
Publication status	Published - 1 Dec 2015
Externally published	Yes

Keywords

Anode material
Bromine doping
Lithium ion batteries
Lithium titanium oxides

UN SDGs

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10.1007/s11581-015-1508-x

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@article{fa377e7501ed4caeafc3deb59403aa7f,

title = "Enhanced rate performance of lithium titanium oxide anode material by bromine doping",

abstract = "Br-doped lithium titanium oxide (Li4Ti5O12) particles in the form of Li4Ti5BrxO12-x (x = 0, 0.1, 0.2, 0.3, 0.4) are synthesized via a simple liquid deposition reaction, followed by a high-temperature treatment. The effects of bromine (Br) doping on the structures and electrochemical properties of Li4Ti5O12 are extensively studied. It is found that Br atoms can enter the lattice structure and enlarge the lattice parameters of Li4Ti5O12. Although Br doping has not changed the phase composition, obvious effects on the particle{\textquoteright}s morphology and size have been observed. Electrochemical test results indicate that the rate capability of Li4Ti5O12 has been evidently improved by Br doping at an appropriate concentration. The as-synthesized Li4Ti5O11.8Br0.2 electrode presents much higher discharge capacity and better cycle stability than that of the other electrodes. The greatly enhanced electrochemical performance of Li4Ti5O11.8Br0.2 may be attributed to the improved dispersion of nanoparticles and increased electrical conductivity.",

keywords = "Anode material, Bromine doping, Lithium ion batteries, Lithium titanium oxides",

author = "Haifang Ni and Song, \{Wei Li\} and Fan, \{Li Zhen\} and Wang, \{Yin Zhen\}",

note = "Publisher Copyright: {\textcopyright} 2015, Springer-Verlag Berlin Heidelberg.",

year = "2015",

month = dec,

day = "1",

doi = "10.1007/s11581-015-1508-x",

language = "English",

volume = "21",

pages = "3169--3176",

journal = "Ionics",

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}

TY - JOUR

T1 - Enhanced rate performance of lithium titanium oxide anode material by bromine doping

AU - Ni, Haifang

AU - Song, Wei Li

AU - Fan, Li Zhen

AU - Wang, Yin Zhen

PY - 2015/12/1

Y1 - 2015/12/1

N2 - Br-doped lithium titanium oxide (Li4Ti5O12) particles in the form of Li4Ti5BrxO12-x (x = 0, 0.1, 0.2, 0.3, 0.4) are synthesized via a simple liquid deposition reaction, followed by a high-temperature treatment. The effects of bromine (Br) doping on the structures and electrochemical properties of Li4Ti5O12 are extensively studied. It is found that Br atoms can enter the lattice structure and enlarge the lattice parameters of Li4Ti5O12. Although Br doping has not changed the phase composition, obvious effects on the particle’s morphology and size have been observed. Electrochemical test results indicate that the rate capability of Li4Ti5O12 has been evidently improved by Br doping at an appropriate concentration. The as-synthesized Li4Ti5O11.8Br0.2 electrode presents much higher discharge capacity and better cycle stability than that of the other electrodes. The greatly enhanced electrochemical performance of Li4Ti5O11.8Br0.2 may be attributed to the improved dispersion of nanoparticles and increased electrical conductivity.

AB - Br-doped lithium titanium oxide (Li4Ti5O12) particles in the form of Li4Ti5BrxO12-x (x = 0, 0.1, 0.2, 0.3, 0.4) are synthesized via a simple liquid deposition reaction, followed by a high-temperature treatment. The effects of bromine (Br) doping on the structures and electrochemical properties of Li4Ti5O12 are extensively studied. It is found that Br atoms can enter the lattice structure and enlarge the lattice parameters of Li4Ti5O12. Although Br doping has not changed the phase composition, obvious effects on the particle’s morphology and size have been observed. Electrochemical test results indicate that the rate capability of Li4Ti5O12 has been evidently improved by Br doping at an appropriate concentration. The as-synthesized Li4Ti5O11.8Br0.2 electrode presents much higher discharge capacity and better cycle stability than that of the other electrodes. The greatly enhanced electrochemical performance of Li4Ti5O11.8Br0.2 may be attributed to the improved dispersion of nanoparticles and increased electrical conductivity.

KW - Anode material

KW - Bromine doping

KW - Lithium ion batteries

KW - Lithium titanium oxides

UR - https://www.scopus.com/pages/publications/84947613876

U2 - 10.1007/s11581-015-1508-x

DO - 10.1007/s11581-015-1508-x

M3 - Article

AN - SCOPUS:84947613876

SN - 0947-7047

VL - 21

SP - 3169

EP - 3176

JO - Ionics

JF - Ionics

IS - 12

ER -

Enhanced rate performance of lithium titanium oxide anode material by bromine doping

Abstract

Keywords

UN SDGs

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