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Electrochemically Expandable Soft Carbon as Anodes for Na-Ion Batteries
[Image: see text] Na-ion batteries (NIBs) have attracted great attention for scalable electrical energy storage considering the abundance and wide availability of Na resources. However, it remains elusive whether carbon anodes can achieve the similar scale of successes in Na-ion batteries as in Li-i...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2015
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4827671/ https://www.ncbi.nlm.nih.gov/pubmed/27163016 http://dx.doi.org/10.1021/acscentsci.5b00329 |
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author | Luo, Wei Jian, Zelang Xing, Zhenyu Wang, Wei Bommier, Clement Lerner, Michael M. Ji, Xiulei |
author_facet | Luo, Wei Jian, Zelang Xing, Zhenyu Wang, Wei Bommier, Clement Lerner, Michael M. Ji, Xiulei |
author_sort | Luo, Wei |
collection | PubMed |
description | [Image: see text] Na-ion batteries (NIBs) have attracted great attention for scalable electrical energy storage considering the abundance and wide availability of Na resources. However, it remains elusive whether carbon anodes can achieve the similar scale of successes in Na-ion batteries as in Li-ion batteries. Currently, much attention is focused on hard carbon while soft carbon is generally considered a poor choice. In this study, we discover that soft carbon can be a high-rate anode in NIBs if the preparation conditions are carefully chosen. Furthermore, we discover that the turbostratic lattice of soft carbon is electrochemically expandable, where d-spacing rises from 3.6 to 4.2 Å. Such a scale of lattice expansion only due to the Na-ion insertion was not known for carbon materials. It is further learned that portions of such lattice expansion are highly reversible, resulting in excellent cycling performance. Moreover, soft carbon delivers a good capacity at potentials above 0.2 V, which enables an intrinsically dendrite-free anode for NIBs. |
format | Online Article Text |
id | pubmed-4827671 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-48276712016-05-09 Electrochemically Expandable Soft Carbon as Anodes for Na-Ion Batteries Luo, Wei Jian, Zelang Xing, Zhenyu Wang, Wei Bommier, Clement Lerner, Michael M. Ji, Xiulei ACS Cent Sci [Image: see text] Na-ion batteries (NIBs) have attracted great attention for scalable electrical energy storage considering the abundance and wide availability of Na resources. However, it remains elusive whether carbon anodes can achieve the similar scale of successes in Na-ion batteries as in Li-ion batteries. Currently, much attention is focused on hard carbon while soft carbon is generally considered a poor choice. In this study, we discover that soft carbon can be a high-rate anode in NIBs if the preparation conditions are carefully chosen. Furthermore, we discover that the turbostratic lattice of soft carbon is electrochemically expandable, where d-spacing rises from 3.6 to 4.2 Å. Such a scale of lattice expansion only due to the Na-ion insertion was not known for carbon materials. It is further learned that portions of such lattice expansion are highly reversible, resulting in excellent cycling performance. Moreover, soft carbon delivers a good capacity at potentials above 0.2 V, which enables an intrinsically dendrite-free anode for NIBs. American Chemical Society 2015-11-23 2015-12-23 /pmc/articles/PMC4827671/ /pubmed/27163016 http://dx.doi.org/10.1021/acscentsci.5b00329 Text en Copyright © 2015 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Luo, Wei Jian, Zelang Xing, Zhenyu Wang, Wei Bommier, Clement Lerner, Michael M. Ji, Xiulei Electrochemically Expandable Soft Carbon as Anodes for Na-Ion Batteries |
title | Electrochemically Expandable Soft Carbon as Anodes
for Na-Ion Batteries |
title_full | Electrochemically Expandable Soft Carbon as Anodes
for Na-Ion Batteries |
title_fullStr | Electrochemically Expandable Soft Carbon as Anodes
for Na-Ion Batteries |
title_full_unstemmed | Electrochemically Expandable Soft Carbon as Anodes
for Na-Ion Batteries |
title_short | Electrochemically Expandable Soft Carbon as Anodes
for Na-Ion Batteries |
title_sort | electrochemically expandable soft carbon as anodes
for na-ion batteries |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4827671/ https://www.ncbi.nlm.nih.gov/pubmed/27163016 http://dx.doi.org/10.1021/acscentsci.5b00329 |
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