Synthesis of Heterogeneous Li 4Ti 5O 12 Nanostructured Anodes with Long-Term Cycle Stability

Duk Kyu Lee; Hyun Woo Shim; Jae Sul An; Chin Moo Cho; In Sun Cho; Kug Sun Hong; Dong Wan Kim

doi:10.1007/s11671-010-9680-4

Synthesis of Heterogeneous Li ₄Ti ₅O ₁₂ Nanostructured Anodes with Long-Term Cycle Stability

Duk Kyu Lee, Hyun Woo Shim, Jae Sul An, Chin Moo Cho, In Sun Cho, Kug Sun Hong, Dong Wan Kim

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

36 Citations (Scopus)

Abstract

The 0D-1D Lithium titanate (Li ₄Ti ₅O ₁₂) heterogeneous nanostructures were synthesized through the solvothermal reaction using lithium hydroxide monohydrate (Li(OH)·H ₂O) and protonated trititanate (H ₂Ti ₃O ₇) nanowires as the templates in an ethanol/water mixed solvent with subsequent heat treatment. A scanning electron microscope (SEM) and a high resolution transmission electron microscope (HRTEM) were used to reveal that the Li ₄Ti ₅O ₁₂ powders had 0D-1D heterogeneous nanostructures with nanoparticles (0D) on the surface of wires (1D). The composition of the mixed solvents and the volume ratio of ethanol modulated the primary particle size of the Li ₄Ti ₅O ₁₂ nanoparticles. The Li ₄Ti ₅O ₁₂ heterogeneous nanostructures exhibited good capacity retention of 125 mAh/g after 500 cycles at 1C and a superior high-rate performance of 114 mAh/g at 20C.

Original language	English
Pages (from-to)	1585-1589
Number of pages	5
Journal	Nanoscale Research Letters
Volume	5
Issue number	10
DOIs	https://doi.org/10.1007/s11671-010-9680-4
Publication status	Published - 2010
Externally published	Yes

Bibliographical note

Funding Information:
Acknowledgments This research was supported by Future-based Technology Development Program (Nano Fields) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010-0019116).

Keywords

Capacity retention
Li Ti O
Li ion batteries
Nanowires
Solvothermal reaction

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

Access to Document

10.1007/s11671-010-9680-4

Cite this

@article{2825040eb03248a3943d52f4b6b74e08,

title = "Synthesis of Heterogeneous Li 4Ti 5O 12 Nanostructured Anodes with Long-Term Cycle Stability",

abstract = "The 0D-1D Lithium titanate (Li 4Ti 5O 12) heterogeneous nanostructures were synthesized through the solvothermal reaction using lithium hydroxide monohydrate (Li(OH)·H 2O) and protonated trititanate (H 2Ti 3O 7) nanowires as the templates in an ethanol/water mixed solvent with subsequent heat treatment. A scanning electron microscope (SEM) and a high resolution transmission electron microscope (HRTEM) were used to reveal that the Li 4Ti 5O 12 powders had 0D-1D heterogeneous nanostructures with nanoparticles (0D) on the surface of wires (1D). The composition of the mixed solvents and the volume ratio of ethanol modulated the primary particle size of the Li 4Ti 5O 12 nanoparticles. The Li 4Ti 5O 12 heterogeneous nanostructures exhibited good capacity retention of 125 mAh/g after 500 cycles at 1C and a superior high-rate performance of 114 mAh/g at 20C.",

keywords = "Capacity retention, Li Ti O, Li ion batteries, Nanowires, Solvothermal reaction",

author = "Lee, {Duk Kyu} and Shim, {Hyun Woo} and An, {Jae Sul} and Cho, {Chin Moo} and Cho, {In Sun} and Hong, {Kug Sun} and Kim, {Dong Wan}",

note = "Funding Information: Acknowledgments This research was supported by Future-based Technology Development Program (Nano Fields) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010-0019116).",

year = "2010",

doi = "10.1007/s11671-010-9680-4",

language = "English",

volume = "5",

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T1 - Synthesis of Heterogeneous Li 4Ti 5O 12 Nanostructured Anodes with Long-Term Cycle Stability

AU - Lee, Duk Kyu

AU - Shim, Hyun Woo

AU - An, Jae Sul

AU - Cho, Chin Moo

AU - Cho, In Sun

AU - Hong, Kug Sun

AU - Kim, Dong Wan

N1 - Funding Information: Acknowledgments This research was supported by Future-based Technology Development Program (Nano Fields) through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010-0019116).

PY - 2010

Y1 - 2010

N2 - The 0D-1D Lithium titanate (Li 4Ti 5O 12) heterogeneous nanostructures were synthesized through the solvothermal reaction using lithium hydroxide monohydrate (Li(OH)·H 2O) and protonated trititanate (H 2Ti 3O 7) nanowires as the templates in an ethanol/water mixed solvent with subsequent heat treatment. A scanning electron microscope (SEM) and a high resolution transmission electron microscope (HRTEM) were used to reveal that the Li 4Ti 5O 12 powders had 0D-1D heterogeneous nanostructures with nanoparticles (0D) on the surface of wires (1D). The composition of the mixed solvents and the volume ratio of ethanol modulated the primary particle size of the Li 4Ti 5O 12 nanoparticles. The Li 4Ti 5O 12 heterogeneous nanostructures exhibited good capacity retention of 125 mAh/g after 500 cycles at 1C and a superior high-rate performance of 114 mAh/g at 20C.

AB - The 0D-1D Lithium titanate (Li 4Ti 5O 12) heterogeneous nanostructures were synthesized through the solvothermal reaction using lithium hydroxide monohydrate (Li(OH)·H 2O) and protonated trititanate (H 2Ti 3O 7) nanowires as the templates in an ethanol/water mixed solvent with subsequent heat treatment. A scanning electron microscope (SEM) and a high resolution transmission electron microscope (HRTEM) were used to reveal that the Li 4Ti 5O 12 powders had 0D-1D heterogeneous nanostructures with nanoparticles (0D) on the surface of wires (1D). The composition of the mixed solvents and the volume ratio of ethanol modulated the primary particle size of the Li 4Ti 5O 12 nanoparticles. The Li 4Ti 5O 12 heterogeneous nanostructures exhibited good capacity retention of 125 mAh/g after 500 cycles at 1C and a superior high-rate performance of 114 mAh/g at 20C.

KW - Capacity retention

KW - Li Ti O

KW - Li ion batteries

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KW - Solvothermal reaction

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