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Re-construction layer effect of LiNi(0.8)Co(0.15)Mn(0.05)O(2) with solvent evaporation process
The solvent evaporation method on the structural changes and surface chemistry of the cathode and the effect of electrochemical performance of Li(1.0)Ni(0.8)Co(0.15)Mn(0.05)O(2) (NCM) has been investigated. After dissolving of Li residuals using minimum content of solvent in order to minimize the da...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5357953/ https://www.ncbi.nlm.nih.gov/pubmed/28317913 http://dx.doi.org/10.1038/srep44557 |
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author | Park, Kwangjin Park, Jun-Ho Hong, Suk-Gi Choi, Byungjin Heo, Sung Seo, Seung-Woo Min, Kyoungmin Park, Jin-Hwan |
author_facet | Park, Kwangjin Park, Jun-Ho Hong, Suk-Gi Choi, Byungjin Heo, Sung Seo, Seung-Woo Min, Kyoungmin Park, Jin-Hwan |
author_sort | Park, Kwangjin |
collection | PubMed |
description | The solvent evaporation method on the structural changes and surface chemistry of the cathode and the effect of electrochemical performance of Li(1.0)Ni(0.8)Co(0.15)Mn(0.05)O(2) (NCM) has been investigated. After dissolving of Li residuals using minimum content of solvent in order to minimize the damage of pristine material and the evaporation time, the solvent was evaporated without filtering and remaining powder was re-heated at 700 °C in oxygen environment. Two kinds of solvent, de-ionized water and diluted nitric acid, were used as a solvent. The almost 40% of Li residuals were removed using solvent evaporation method. The NCM sample after solvent evaporation process exhibited an increase in the initial capacity (214.3 mAh/g) compared to the pristine sample (207.4 mAh/g) at 0.1C because of enhancement of electric conductivity caused by decline of Li residuals. The capacity retention of NCM sample after solvent evaporation process (96.0% at the 50th cycle) was also improved compared to that of the pristine NCM sample (90.6% at the 50th cycle). The uniform Li residual layer after solvent treated and heat treatment acted like a coating layer, leading to enhance the cycle performance. The NCM sample using diluted nitric acid showed better performance than that using de-ionized water. |
format | Online Article Text |
id | pubmed-5357953 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-53579532017-03-22 Re-construction layer effect of LiNi(0.8)Co(0.15)Mn(0.05)O(2) with solvent evaporation process Park, Kwangjin Park, Jun-Ho Hong, Suk-Gi Choi, Byungjin Heo, Sung Seo, Seung-Woo Min, Kyoungmin Park, Jin-Hwan Sci Rep Article The solvent evaporation method on the structural changes and surface chemistry of the cathode and the effect of electrochemical performance of Li(1.0)Ni(0.8)Co(0.15)Mn(0.05)O(2) (NCM) has been investigated. After dissolving of Li residuals using minimum content of solvent in order to minimize the damage of pristine material and the evaporation time, the solvent was evaporated without filtering and remaining powder was re-heated at 700 °C in oxygen environment. Two kinds of solvent, de-ionized water and diluted nitric acid, were used as a solvent. The almost 40% of Li residuals were removed using solvent evaporation method. The NCM sample after solvent evaporation process exhibited an increase in the initial capacity (214.3 mAh/g) compared to the pristine sample (207.4 mAh/g) at 0.1C because of enhancement of electric conductivity caused by decline of Li residuals. The capacity retention of NCM sample after solvent evaporation process (96.0% at the 50th cycle) was also improved compared to that of the pristine NCM sample (90.6% at the 50th cycle). The uniform Li residual layer after solvent treated and heat treatment acted like a coating layer, leading to enhance the cycle performance. The NCM sample using diluted nitric acid showed better performance than that using de-ionized water. Nature Publishing Group 2017-03-20 /pmc/articles/PMC5357953/ /pubmed/28317913 http://dx.doi.org/10.1038/srep44557 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Park, Kwangjin Park, Jun-Ho Hong, Suk-Gi Choi, Byungjin Heo, Sung Seo, Seung-Woo Min, Kyoungmin Park, Jin-Hwan Re-construction layer effect of LiNi(0.8)Co(0.15)Mn(0.05)O(2) with solvent evaporation process |
title | Re-construction layer effect of LiNi(0.8)Co(0.15)Mn(0.05)O(2) with solvent evaporation process |
title_full | Re-construction layer effect of LiNi(0.8)Co(0.15)Mn(0.05)O(2) with solvent evaporation process |
title_fullStr | Re-construction layer effect of LiNi(0.8)Co(0.15)Mn(0.05)O(2) with solvent evaporation process |
title_full_unstemmed | Re-construction layer effect of LiNi(0.8)Co(0.15)Mn(0.05)O(2) with solvent evaporation process |
title_short | Re-construction layer effect of LiNi(0.8)Co(0.15)Mn(0.05)O(2) with solvent evaporation process |
title_sort | re-construction layer effect of lini(0.8)co(0.15)mn(0.05)o(2) with solvent evaporation process |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5357953/ https://www.ncbi.nlm.nih.gov/pubmed/28317913 http://dx.doi.org/10.1038/srep44557 |
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