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A novel conversion anode composite for lithium ion batteries based on MnF2/carbon nanotubes with hierarchical structure

Le Zhang, Anji Munnangi Orcid Logo, Xiu-Mei Lin, Zhirong Zhao-Karger, Maximilian Fichtner

Journal of Alloys and Compounds, Volume: 724, Pages: 1101 - 1108

Swansea University Author: Anji Munnangi Orcid Logo

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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 com...

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Published in: Journal of Alloys and Compounds
ISSN: 0925-8388
Published: Elsevier BV 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa51573
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first_indexed 2019-08-27T15:30:57Z
last_indexed 2019-09-04T14:49:34Z
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spelling 2019-09-04T11:07:22.0351722 v2 51573 2019-08-27 A novel conversion anode composite for lithium ion batteries based on MnF2/carbon nanotubes with hierarchical structure 3ed0b4f2ff4fb9e87c7a73e7a3c39da7 0000-0001-9101-0252 Anji Munnangi Anji Munnangi true false 2019-08-27 MTLS 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. Journal Article Journal of Alloys and Compounds 724 1101 1108 Elsevier BV 0925-8388 manganese fluoride, carbon nanotubes, anode, lithium ion batteries, hierarchical porous structure 15 11 2017 2017-11-15 10.1016/j.jallcom.2017.07.138 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2019-09-04T11:07:22.0351722 2019-08-27T12:20:19.1354091 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Le Zhang 1 Anji Munnangi 0000-0001-9101-0252 2 Xiu-Mei Lin 3 Zhirong Zhao-Karger 4 Maximilian Fichtner 5
title A novel conversion anode composite for lithium ion batteries based on MnF2/carbon nanotubes with hierarchical structure
spellingShingle A novel conversion anode composite for lithium ion batteries based on MnF2/carbon nanotubes with hierarchical structure
Anji Munnangi
title_short A novel conversion anode composite for lithium ion batteries based on MnF2/carbon nanotubes with hierarchical structure
title_full A novel conversion anode composite for lithium ion batteries based on MnF2/carbon nanotubes with hierarchical structure
title_fullStr A novel conversion anode composite for lithium ion batteries based on MnF2/carbon nanotubes with hierarchical structure
title_full_unstemmed A novel conversion anode composite for lithium ion batteries based on MnF2/carbon nanotubes with hierarchical structure
title_sort A novel conversion anode composite for lithium ion batteries based on MnF2/carbon nanotubes with hierarchical structure
author_id_str_mv 3ed0b4f2ff4fb9e87c7a73e7a3c39da7
author_id_fullname_str_mv 3ed0b4f2ff4fb9e87c7a73e7a3c39da7_***_Anji Munnangi
author Anji Munnangi
author2 Le Zhang
Anji Munnangi
Xiu-Mei Lin
Zhirong Zhao-Karger
Maximilian Fichtner
format Journal article
container_title Journal of Alloys and Compounds
container_volume 724
container_start_page 1101
publishDate 2017
institution Swansea University
issn 0925-8388
doi_str_mv 10.1016/j.jallcom.2017.07.138
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 0
active_str 0
description 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.
published_date 2017-11-15T03:57:12Z
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score 10.92735