Cycle and rate performance of chemically modified super-aligned carbon nanotube electrodes for lithium ion batteries

Mengya Li; Yang Wu; Fei Zhao; Yang Wei; Jiaping Wang; Kaili Jiang; Shoushan Fan

doi:10.1016/j.carbon.2013.12.047

Cycle and rate performance of chemically modified super-aligned carbon nanotube electrodes for lithium ion batteries

Mengya Li, Yang Wu, Fei Zhao, Yang Wei, Jiaping Wang, Kaili Jiang, Shoushan Fan

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

32 Scopus citations

Abstract

Super-aligned multi-walled carbon nanotubes (MWCNTs), which had been produced in large-scale, were oxidized by H₂O₂ and HNO₃. The surface defects and oxygen-containing functional groups introduced during the oxidizing process were characterized by Raman spectroscopy and X-ray photoelectron spectroscopy. The surface modification of MWCNTs improved the electrochemical properties. As a result, H₂O ₂-treated and HNO₃-treated MWCNTs displayed reversible capacities of 364 mA h/g and 391 mA h/g, respectively, after 80 galvanostatic cycles, corresponding to 143% and 154% improvements compared with pristine MWCNTs. The rate capability was also increased. At a current density of 3500 mA/g, H₂O₂-treated and HNO₃-treated MWCNTs exhibited reversible capacities of 66 mA h/g and 156 mA h/g, respectively. In contrast, pristine MWCNTs were only able to deliver 27 mA h/g at this current density.

Original language	English
Pages (from-to)	444-451
Number of pages	8
Journal	Carbon
Volume	69
DOIs	https://doi.org/10.1016/j.carbon.2013.12.047
State	Published - Apr 2014
Externally published	Yes

Funding

This work was supported by the National Basic Research Program of China ( 2012CB932301 ), the NSFC ( 51102146 ) and the Chinese Postdoctoral Science Foundation ( 2012M520261 ).

Funders	Funder number
National Natural Science Foundation of China	51102146
China Postdoctoral Science Foundation	2012M520261
National Key Research and Development Program of China	2012CB932301

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.carbon.2013.12.047

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title = "Cycle and rate performance of chemically modified super-aligned carbon nanotube electrodes for lithium ion batteries",

abstract = "Super-aligned multi-walled carbon nanotubes (MWCNTs), which had been produced in large-scale, were oxidized by H2O2 and HNO3. The surface defects and oxygen-containing functional groups introduced during the oxidizing process were characterized by Raman spectroscopy and X-ray photoelectron spectroscopy. The surface modification of MWCNTs improved the electrochemical properties. As a result, H2O 2-treated and HNO3-treated MWCNTs displayed reversible capacities of 364 mA h/g and 391 mA h/g, respectively, after 80 galvanostatic cycles, corresponding to 143% and 154% improvements compared with pristine MWCNTs. The rate capability was also increased. At a current density of 3500 mA/g, H2O2-treated and HNO3-treated MWCNTs exhibited reversible capacities of 66 mA h/g and 156 mA h/g, respectively. In contrast, pristine MWCNTs were only able to deliver 27 mA h/g at this current density.",

author = "Mengya Li and Yang Wu and Fei Zhao and Yang Wei and Jiaping Wang and Kaili Jiang and Shoushan Fan",

year = "2014",

month = apr,

doi = "10.1016/j.carbon.2013.12.047",

language = "English",

volume = "69",

pages = "444--451",

journal = "Carbon",

issn = "0008-6223",

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TY - JOUR

T1 - Cycle and rate performance of chemically modified super-aligned carbon nanotube electrodes for lithium ion batteries

AU - Li, Mengya

AU - Wu, Yang

AU - Zhao, Fei

AU - Wei, Yang

AU - Wang, Jiaping

AU - Jiang, Kaili

AU - Fan, Shoushan

PY - 2014/4

Y1 - 2014/4

N2 - Super-aligned multi-walled carbon nanotubes (MWCNTs), which had been produced in large-scale, were oxidized by H2O2 and HNO3. The surface defects and oxygen-containing functional groups introduced during the oxidizing process were characterized by Raman spectroscopy and X-ray photoelectron spectroscopy. The surface modification of MWCNTs improved the electrochemical properties. As a result, H2O 2-treated and HNO3-treated MWCNTs displayed reversible capacities of 364 mA h/g and 391 mA h/g, respectively, after 80 galvanostatic cycles, corresponding to 143% and 154% improvements compared with pristine MWCNTs. The rate capability was also increased. At a current density of 3500 mA/g, H2O2-treated and HNO3-treated MWCNTs exhibited reversible capacities of 66 mA h/g and 156 mA h/g, respectively. In contrast, pristine MWCNTs were only able to deliver 27 mA h/g at this current density.

AB - Super-aligned multi-walled carbon nanotubes (MWCNTs), which had been produced in large-scale, were oxidized by H2O2 and HNO3. The surface defects and oxygen-containing functional groups introduced during the oxidizing process were characterized by Raman spectroscopy and X-ray photoelectron spectroscopy. The surface modification of MWCNTs improved the electrochemical properties. As a result, H2O 2-treated and HNO3-treated MWCNTs displayed reversible capacities of 364 mA h/g and 391 mA h/g, respectively, after 80 galvanostatic cycles, corresponding to 143% and 154% improvements compared with pristine MWCNTs. The rate capability was also increased. At a current density of 3500 mA/g, H2O2-treated and HNO3-treated MWCNTs exhibited reversible capacities of 66 mA h/g and 156 mA h/g, respectively. In contrast, pristine MWCNTs were only able to deliver 27 mA h/g at this current density.

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VL - 69

SP - 444

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JO - Carbon

JF - Carbon

ER -

Cycle and rate performance of chemically modified super-aligned carbon nanotube electrodes for lithium ion batteries

Abstract

Funding

UN SDGs

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