The Core-Shell Heterostructure CNT@Li(2)FeSiO(4)@C as a Highly Stable Cathode Material for Lithium-Ion Batteries

The reasonable design of nanostructure is the key to solving the inherent defects and realizing a high performance of Li(2)FeSiO(4) cathode materials. In this work, a novel heterostructure CNT@Li(2)FeSiO(4)@C has been designed and synthesized and used as a cathode material for lithium-ion battery. I...

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Detalles Bibliográficos
Autores principales: Peng, Tao, Guo, Wei, Zhang, Yingge, Wang, Yangbo, Zhu, Kejia, Guo, Yan, Wang, Yinghui, Lu, Yang, Yan, Hailong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2019
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6797695/
https://www.ncbi.nlm.nih.gov/pubmed/31624928
http://dx.doi.org/10.1186/s11671-019-3165-x
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author Peng, Tao
Guo, Wei
Zhang, Yingge
Wang, Yangbo
Zhu, Kejia
Guo, Yan
Wang, Yinghui
Lu, Yang
Yan, Hailong
author_facet Peng, Tao
Guo, Wei
Zhang, Yingge
Wang, Yangbo
Zhu, Kejia
Guo, Yan
Wang, Yinghui
Lu, Yang
Yan, Hailong
author_sort Peng, Tao
collection PubMed
description The reasonable design of nanostructure is the key to solving the inherent defects and realizing a high performance of Li(2)FeSiO(4) cathode materials. In this work, a novel heterostructure CNT@Li(2)FeSiO(4)@C has been designed and synthesized and used as a cathode material for lithium-ion battery. It is revealed that the product has a uniform core-shell structure, and the thickness of the Li(2)FeSiO(4) layer and the outer carbon layer is about 19 nm and 2 nm, respectively. The rational design effectively accelerates the diffusion of lithium ions, improves the electric conductivity, and relieves the volume change during the charging/discharging process. With the advantages of its specific structure, CNT@Li(2)FeSiO(4)@C has successfully overcome the inherent shortcomings of Li(2)FeSiO(4) and shown good reversible capacity and cycle properties.
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spelling pubmed-67976952019-10-24 The Core-Shell Heterostructure CNT@Li(2)FeSiO(4)@C as a Highly Stable Cathode Material for Lithium-Ion Batteries Peng, Tao Guo, Wei Zhang, Yingge Wang, Yangbo Zhu, Kejia Guo, Yan Wang, Yinghui Lu, Yang Yan, Hailong Nanoscale Res Lett Nano Express The reasonable design of nanostructure is the key to solving the inherent defects and realizing a high performance of Li(2)FeSiO(4) cathode materials. In this work, a novel heterostructure CNT@Li(2)FeSiO(4)@C has been designed and synthesized and used as a cathode material for lithium-ion battery. It is revealed that the product has a uniform core-shell structure, and the thickness of the Li(2)FeSiO(4) layer and the outer carbon layer is about 19 nm and 2 nm, respectively. The rational design effectively accelerates the diffusion of lithium ions, improves the electric conductivity, and relieves the volume change during the charging/discharging process. With the advantages of its specific structure, CNT@Li(2)FeSiO(4)@C has successfully overcome the inherent shortcomings of Li(2)FeSiO(4) and shown good reversible capacity and cycle properties. Springer US 2019-10-17 /pmc/articles/PMC6797695/ /pubmed/31624928 http://dx.doi.org/10.1186/s11671-019-3165-x 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
Peng, Tao
Guo, Wei
Zhang, Yingge
Wang, Yangbo
Zhu, Kejia
Guo, Yan
Wang, Yinghui
Lu, Yang
Yan, Hailong
The Core-Shell Heterostructure CNT@Li(2)FeSiO(4)@C as a Highly Stable Cathode Material for Lithium-Ion Batteries
title The Core-Shell Heterostructure CNT@Li(2)FeSiO(4)@C as a Highly Stable Cathode Material for Lithium-Ion Batteries
title_full The Core-Shell Heterostructure CNT@Li(2)FeSiO(4)@C as a Highly Stable Cathode Material for Lithium-Ion Batteries
title_fullStr The Core-Shell Heterostructure CNT@Li(2)FeSiO(4)@C as a Highly Stable Cathode Material for Lithium-Ion Batteries
title_full_unstemmed The Core-Shell Heterostructure CNT@Li(2)FeSiO(4)@C as a Highly Stable Cathode Material for Lithium-Ion Batteries
title_short The Core-Shell Heterostructure CNT@Li(2)FeSiO(4)@C as a Highly Stable Cathode Material for Lithium-Ion Batteries
title_sort core-shell heterostructure cnt@li(2)fesio(4)@c as a highly stable cathode material for lithium-ion batteries
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6797695/
https://www.ncbi.nlm.nih.gov/pubmed/31624928
http://dx.doi.org/10.1186/s11671-019-3165-x
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