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

33 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 ).

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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",

publisher = "Elsevier",

}

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.

UR - https://www.scopus.com/pages/publications/84892829186

U2 - 10.1016/j.carbon.2013.12.047

DO - 10.1016/j.carbon.2013.12.047

M3 - Article

AN - SCOPUS:84892829186

SN - 0008-6223

VL - 69

SP - 444

EP - 451

JO - Carbon

JF - Carbon

ER -

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

Abstract

Funding

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