Abstract
Multi-walled carbon nanotubes (MWCNTs) with different diameter range are employed as the anode materials in lithium-ion batteries (LIBs). The influence of diameter and pore structure on the electrochemical behavior of MWCNTs has been investigated by characterization of morphology and structure, nitrogen adsorption and desorption measurement, charge/discharge tests, and electrochemical impedance spectroscopy (EIS). The results show that MWCNTs with a diameter of 40-60 nm display the highest specific capacity (187.4 mAh g -1 at the charge/discharge rate of 50 mA g -1 ) and good cyclability (101.9% Coulomb efficiency after 50 cycles). The excellent electrochemical performance verifies the feasibility of MWCNTs as a promising candidate for the anode of LIBs.
| Original language | English |
|---|---|
| Pages (from-to) | 4729-4732 |
| Number of pages | 4 |
| Journal | Applied Surface Science |
| Volume | 258 |
| Issue number | 10 |
| DOIs | |
| State | Published - 1 Mar 2012 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Lithium-ion batteries, Anode
- Multi-walled carbon nanotubes
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