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Mechanical Composite of LiNi(0.8)Co(0.15)Al(0.05)O(2)/Carbon Nanotubes with Enhanced Electrochemical Performance for Lithium-Ion Batteries
LiNi(0.8)Co(0.15)Al(0.05)O(2)/carbon nanotube (NCA/CNT) composite cathode materials are prepared by a facile mechanical grinding method, without damage to the crystal structure and morphology of the bulk. The NCA/CNT composite exhibits enhanced cycling and rate performance compared with pristine NCA...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5449312/ https://www.ncbi.nlm.nih.gov/pubmed/28565884 http://dx.doi.org/10.1186/s11671-017-2143-4 |
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author | Zhang, Liping Fu, Ju Zhang, Chuhong |
author_facet | Zhang, Liping Fu, Ju Zhang, Chuhong |
author_sort | Zhang, Liping |
collection | PubMed |
description | LiNi(0.8)Co(0.15)Al(0.05)O(2)/carbon nanotube (NCA/CNT) composite cathode materials are prepared by a facile mechanical grinding method, without damage to the crystal structure and morphology of the bulk. The NCA/CNT composite exhibits enhanced cycling and rate performance compared with pristine NCA. After 60 cycles at a current rate of 0.25 C, the reversible capacity of NCA/CNT composite cathode is 181 mAh/g with a discharge retention rate of 96%, considerably higher than the value of pristine NCA (153 mAh/g with a retention rate of 90%). At a high current rate of 5 C, it also can deliver a reversible capacity of 160 mAh/g, while only 140 mAh/g is maintained for the unmodified NCA. Highly electrical conductive CNTs rather than common inert insulating materials are for the first time employed as surface modifiers for NCA, which are dispersed homogenously on the surface of NCA particles, not only improving the electrical conductivity but also providing effective protection to the side reactions with liquid electrolyte of the battery. |
format | Online Article Text |
id | pubmed-5449312 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-54493122017-06-15 Mechanical Composite of LiNi(0.8)Co(0.15)Al(0.05)O(2)/Carbon Nanotubes with Enhanced Electrochemical Performance for Lithium-Ion Batteries Zhang, Liping Fu, Ju Zhang, Chuhong Nanoscale Res Lett Nano Express LiNi(0.8)Co(0.15)Al(0.05)O(2)/carbon nanotube (NCA/CNT) composite cathode materials are prepared by a facile mechanical grinding method, without damage to the crystal structure and morphology of the bulk. The NCA/CNT composite exhibits enhanced cycling and rate performance compared with pristine NCA. After 60 cycles at a current rate of 0.25 C, the reversible capacity of NCA/CNT composite cathode is 181 mAh/g with a discharge retention rate of 96%, considerably higher than the value of pristine NCA (153 mAh/g with a retention rate of 90%). At a high current rate of 5 C, it also can deliver a reversible capacity of 160 mAh/g, while only 140 mAh/g is maintained for the unmodified NCA. Highly electrical conductive CNTs rather than common inert insulating materials are for the first time employed as surface modifiers for NCA, which are dispersed homogenously on the surface of NCA particles, not only improving the electrical conductivity but also providing effective protection to the side reactions with liquid electrolyte of the battery. Springer US 2017-05-30 /pmc/articles/PMC5449312/ /pubmed/28565884 http://dx.doi.org/10.1186/s11671-017-2143-4 Text en © The Author(s). 2017 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 Zhang, Liping Fu, Ju Zhang, Chuhong Mechanical Composite of LiNi(0.8)Co(0.15)Al(0.05)O(2)/Carbon Nanotubes with Enhanced Electrochemical Performance for Lithium-Ion Batteries |
title | Mechanical Composite of LiNi(0.8)Co(0.15)Al(0.05)O(2)/Carbon Nanotubes with Enhanced Electrochemical Performance for Lithium-Ion Batteries |
title_full | Mechanical Composite of LiNi(0.8)Co(0.15)Al(0.05)O(2)/Carbon Nanotubes with Enhanced Electrochemical Performance for Lithium-Ion Batteries |
title_fullStr | Mechanical Composite of LiNi(0.8)Co(0.15)Al(0.05)O(2)/Carbon Nanotubes with Enhanced Electrochemical Performance for Lithium-Ion Batteries |
title_full_unstemmed | Mechanical Composite of LiNi(0.8)Co(0.15)Al(0.05)O(2)/Carbon Nanotubes with Enhanced Electrochemical Performance for Lithium-Ion Batteries |
title_short | Mechanical Composite of LiNi(0.8)Co(0.15)Al(0.05)O(2)/Carbon Nanotubes with Enhanced Electrochemical Performance for Lithium-Ion Batteries |
title_sort | mechanical composite of lini(0.8)co(0.15)al(0.05)o(2)/carbon nanotubes with enhanced electrochemical performance for lithium-ion batteries |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5449312/ https://www.ncbi.nlm.nih.gov/pubmed/28565884 http://dx.doi.org/10.1186/s11671-017-2143-4 |
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