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High-Performance Cathode Material of FeF(3)·0.33H(2)O Modified with Carbon Nanotubes and Graphene for Lithium-Ion Batteries

The FeF(3)·0.33H(2)O cathode material can exhibit a high capacity and high energy density through transfer of multiple electrons in the conversion reaction and has attracted great attention from researchers. However, the low conductivity of FeF(3)·0.33H(2)O greatly restricts its application. General...

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Detalles Bibliográficos
Autores principales: Lu, Lu, Li, Sheng, Li, Jun, Lan, Lifang, Lu, Yan, Xu, Shuaijun, Huang, Si, Pan, Chunyang, Zhao, Fenghua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6420562/
https://www.ncbi.nlm.nih.gov/pubmed/30877480
http://dx.doi.org/10.1186/s11671-019-2925-y
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author Lu, Lu
Li, Sheng
Li, Jun
Lan, Lifang
Lu, Yan
Xu, Shuaijun
Huang, Si
Pan, Chunyang
Zhao, Fenghua
author_facet Lu, Lu
Li, Sheng
Li, Jun
Lan, Lifang
Lu, Yan
Xu, Shuaijun
Huang, Si
Pan, Chunyang
Zhao, Fenghua
author_sort Lu, Lu
collection PubMed
description The FeF(3)·0.33H(2)O cathode material can exhibit a high capacity and high energy density through transfer of multiple electrons in the conversion reaction and has attracted great attention from researchers. However, the low conductivity of FeF(3)·0.33H(2)O greatly restricts its application. Generally, carbon nanotubes (CNTs) and graphene can be used as conductive networks to improve the conductivities of active materials. In this work, the FeF(3)·0.33H(2)O cathode material was synthesized via a liquid-phase method, and the FeF(3)·0.33H(2)O/CNT + graphene nanocomposite was successfully fabricated by introduction of CNTs and graphene conductive networks. The electrochemical results illustrate that FeF(3)·0.33H(2)O/CNT + graphene nanocomposite delivers a high discharge capacity of 234.2 mAh g(−1) in the voltage range of 1.8–4.5 V (vs. Li(+)/Li) at 0.1 C rate, exhibits a prominent cycling performance (193.1 mAh g(−1) after 50 cycles at 0.2 C rate), and rate capability (140.4 mAh g(−1) at 5 C rate). Therefore, the electronic conductivity and electrochemical performance of the FeF(3)·0.33H(2)O cathode material modified with CNTs and graphene composite conductive network can be effectively improved.
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spelling pubmed-64205622019-04-05 High-Performance Cathode Material of FeF(3)·0.33H(2)O Modified with Carbon Nanotubes and Graphene for Lithium-Ion Batteries Lu, Lu Li, Sheng Li, Jun Lan, Lifang Lu, Yan Xu, Shuaijun Huang, Si Pan, Chunyang Zhao, Fenghua Nanoscale Res Lett Nano Express The FeF(3)·0.33H(2)O cathode material can exhibit a high capacity and high energy density through transfer of multiple electrons in the conversion reaction and has attracted great attention from researchers. However, the low conductivity of FeF(3)·0.33H(2)O greatly restricts its application. Generally, carbon nanotubes (CNTs) and graphene can be used as conductive networks to improve the conductivities of active materials. In this work, the FeF(3)·0.33H(2)O cathode material was synthesized via a liquid-phase method, and the FeF(3)·0.33H(2)O/CNT + graphene nanocomposite was successfully fabricated by introduction of CNTs and graphene conductive networks. The electrochemical results illustrate that FeF(3)·0.33H(2)O/CNT + graphene nanocomposite delivers a high discharge capacity of 234.2 mAh g(−1) in the voltage range of 1.8–4.5 V (vs. Li(+)/Li) at 0.1 C rate, exhibits a prominent cycling performance (193.1 mAh g(−1) after 50 cycles at 0.2 C rate), and rate capability (140.4 mAh g(−1) at 5 C rate). Therefore, the electronic conductivity and electrochemical performance of the FeF(3)·0.33H(2)O cathode material modified with CNTs and graphene composite conductive network can be effectively improved. Springer US 2019-03-15 /pmc/articles/PMC6420562/ /pubmed/30877480 http://dx.doi.org/10.1186/s11671-019-2925-y Text en © The Author(s). 2019 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Nano Express
Lu, Lu
Li, Sheng
Li, Jun
Lan, Lifang
Lu, Yan
Xu, Shuaijun
Huang, Si
Pan, Chunyang
Zhao, Fenghua
High-Performance Cathode Material of FeF(3)·0.33H(2)O Modified with Carbon Nanotubes and Graphene for Lithium-Ion Batteries
title High-Performance Cathode Material of FeF(3)·0.33H(2)O Modified with Carbon Nanotubes and Graphene for Lithium-Ion Batteries
title_full High-Performance Cathode Material of FeF(3)·0.33H(2)O Modified with Carbon Nanotubes and Graphene for Lithium-Ion Batteries
title_fullStr High-Performance Cathode Material of FeF(3)·0.33H(2)O Modified with Carbon Nanotubes and Graphene for Lithium-Ion Batteries
title_full_unstemmed High-Performance Cathode Material of FeF(3)·0.33H(2)O Modified with Carbon Nanotubes and Graphene for Lithium-Ion Batteries
title_short High-Performance Cathode Material of FeF(3)·0.33H(2)O Modified with Carbon Nanotubes and Graphene for Lithium-Ion Batteries
title_sort high-performance cathode material of fef(3)·0.33h(2)o modified with carbon nanotubes and graphene for lithium-ion batteries
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6420562/
https://www.ncbi.nlm.nih.gov/pubmed/30877480
http://dx.doi.org/10.1186/s11671-019-2925-y
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