Journal article 634 views
A novel conversion anode composite for lithium ion batteries based on MnF2/carbon nanotubes with hierarchical structure
Le Zhang,
Anji Munnangi 
,
Xiu-Mei Lin,
Zhirong Zhao-Karger,
Maximilian Fichtner
,
Xiu-Mei Lin,
Zhirong Zhao-Karger,
Maximilian Fichtner
Journal of Alloys and Compounds, Volume: 724, Pages: 1101 - 1108
Swansea University Author:
Anji Munnangi
Full text not available from this repository: check for access using links below.
DOI (Published version): 10.1016/j.jallcom.2017.07.138
Abstract
A hierarchically structured MnF2/carbon nanotubes composite (CNTs) was successfully prepared using a novel sol-gel method. The reaction mechanism of this process was investigated by simultaneous thermogravimetric analysis, differential scanning calorimetry and mass spectrometry (TGA-DSC-MS). The com...
| Published in: | Journal of Alloys and Compounds |
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| ISSN: | 0925-8388 |
| Published: |
Elsevier BV
2017
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa51573 |
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| Abstract: |
A hierarchically structured MnF2/carbon nanotubes composite (CNTs) was successfully prepared using a novel sol-gel method. The reaction mechanism of this process was investigated by simultaneous thermogravimetric analysis, differential scanning calorimetry and mass spectrometry (TGA-DSC-MS). The composition and morphology were characterized by X-ray diffraction (XRD), Raman spectrometry, and scanning electron microscopy (SEM). The material was built from a bunch of radially arranged nano-rods crystallites with a side length of 40 nm. CNTs were dispersed on the surfaces of MnF2 particles and improved the electrochemical performance. A low discharge plateau around 0.6 V vs. Li/Li+ at 0.2 C was obtained in the first cycle with a reversible discharge capacity of 384 mAh g−1 after 100 cycles. In long-term measurements, a discharge capacity of 203 mAh g−1 at 10 C was delivered after 1000 cycles. Moreover, a first full cell (LiNi1/3Mn1/3Co1/3O2 vs. MnF2) test demonstrates the actual applicability of the MnF2/CNTs composite, as well. |
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| Keywords: |
manganese fluoride, carbon nanotubes, anode, lithium ion batteries, hierarchical porous structure |
| College: |
Faculty of Science and Engineering |
| Start Page: |
1101 |
| End Page: |
1108 |