Metal oxide/carbon nanotubes nano-hybrid materials for energy storage applications

Sang Bok Ma, Jin Go Kim, Hyun Kyung Kim, Hye Ryun Choi, Kwang Bum Kim

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Nano-sized metal oxides are expected to improve the high rate capability of cathode materials for lithium-ion batteries because of the considerably higher effective interfacial area between the nano-sized metal oxide and electrolyte, and its shorter lithium diffusion length during charge/discharge. Since nano-sized metal oxides tend to agglomerate, good dispersion and improved conductivity of an electrode composed of nano-sized oxides is very important for achieving high rate capability. In this study, metal oxide/CNT nano-hybrid materials (LiMn2O4/CNT, LiCoO2/CNT and Li4Ti5O12/CNT nanocomposites) were synthesized through selective heterogeneous nucleation and growth of the oxides on CNT surface using microwave-hydrothermal process. In the composites, CNTs acted as a substrate to deposit nano-sized metal oxide and to connect the nanoparticles along 1-dimensional conduction path. The nano-hybrid materials showed excellent high rate capability and good structural reversibility for energy storage applications.

Original languageEnglish
JournalACS National Meeting Book of Abstracts
Publication statusPublished - 2010 Dec 1

Fingerprint

Carbon Nanotubes
Hybrid materials
Energy storage
Oxides
Carbon nanotubes
Metals
Lithium
Electrolytes
Nanocomposites
Cathodes
Nucleation
Deposits
Microwaves
Nanoparticles
Electrodes
Composite materials
Substrates

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

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title = "Metal oxide/carbon nanotubes nano-hybrid materials for energy storage applications",
abstract = "Nano-sized metal oxides are expected to improve the high rate capability of cathode materials for lithium-ion batteries because of the considerably higher effective interfacial area between the nano-sized metal oxide and electrolyte, and its shorter lithium diffusion length during charge/discharge. Since nano-sized metal oxides tend to agglomerate, good dispersion and improved conductivity of an electrode composed of nano-sized oxides is very important for achieving high rate capability. In this study, metal oxide/CNT nano-hybrid materials (LiMn2O4/CNT, LiCoO2/CNT and Li4Ti5O12/CNT nanocomposites) were synthesized through selective heterogeneous nucleation and growth of the oxides on CNT surface using microwave-hydrothermal process. In the composites, CNTs acted as a substrate to deposit nano-sized metal oxide and to connect the nanoparticles along 1-dimensional conduction path. The nano-hybrid materials showed excellent high rate capability and good structural reversibility for energy storage applications.",
author = "Ma, {Sang Bok} and Kim, {Jin Go} and Kim, {Hyun Kyung} and Choi, {Hye Ryun} and Kim, {Kwang Bum}",
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Metal oxide/carbon nanotubes nano-hybrid materials for energy storage applications. / Ma, Sang Bok; Kim, Jin Go; Kim, Hyun Kyung; Choi, Hye Ryun; Kim, Kwang Bum.

In: ACS National Meeting Book of Abstracts, 01.12.2010.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Metal oxide/carbon nanotubes nano-hybrid materials for energy storage applications

AU - Ma, Sang Bok

AU - Kim, Jin Go

AU - Kim, Hyun Kyung

AU - Choi, Hye Ryun

AU - Kim, Kwang Bum

PY - 2010/12/1

Y1 - 2010/12/1

N2 - Nano-sized metal oxides are expected to improve the high rate capability of cathode materials for lithium-ion batteries because of the considerably higher effective interfacial area between the nano-sized metal oxide and electrolyte, and its shorter lithium diffusion length during charge/discharge. Since nano-sized metal oxides tend to agglomerate, good dispersion and improved conductivity of an electrode composed of nano-sized oxides is very important for achieving high rate capability. In this study, metal oxide/CNT nano-hybrid materials (LiMn2O4/CNT, LiCoO2/CNT and Li4Ti5O12/CNT nanocomposites) were synthesized through selective heterogeneous nucleation and growth of the oxides on CNT surface using microwave-hydrothermal process. In the composites, CNTs acted as a substrate to deposit nano-sized metal oxide and to connect the nanoparticles along 1-dimensional conduction path. The nano-hybrid materials showed excellent high rate capability and good structural reversibility for energy storage applications.

AB - Nano-sized metal oxides are expected to improve the high rate capability of cathode materials for lithium-ion batteries because of the considerably higher effective interfacial area between the nano-sized metal oxide and electrolyte, and its shorter lithium diffusion length during charge/discharge. Since nano-sized metal oxides tend to agglomerate, good dispersion and improved conductivity of an electrode composed of nano-sized oxides is very important for achieving high rate capability. In this study, metal oxide/CNT nano-hybrid materials (LiMn2O4/CNT, LiCoO2/CNT and Li4Ti5O12/CNT nanocomposites) were synthesized through selective heterogeneous nucleation and growth of the oxides on CNT surface using microwave-hydrothermal process. In the composites, CNTs acted as a substrate to deposit nano-sized metal oxide and to connect the nanoparticles along 1-dimensional conduction path. The nano-hybrid materials showed excellent high rate capability and good structural reversibility for energy storage applications.

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