Cargando…
Inexpensive Antimony Nanocrystals and Their Composites with Red Phosphorus as High-Performance Anode Materials for Na-ion Batteries
Sodium-ion batteries increasingly become of immense research interest as a potential inexpensive alternative to Lithium-ion batteries. Development of high-energy-density negative electrodes (anodes) remains to be a great challenge, especially because of significant differences between lithium and so...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4649624/ https://www.ncbi.nlm.nih.gov/pubmed/25673146 http://dx.doi.org/10.1038/srep08418 |
_version_ | 1782401392453877760 |
---|---|
author | Walter, Marc Erni, Rolf Kovalenko, Maksym V. |
author_facet | Walter, Marc Erni, Rolf Kovalenko, Maksym V. |
author_sort | Walter, Marc |
collection | PubMed |
description | Sodium-ion batteries increasingly become of immense research interest as a potential inexpensive alternative to Lithium-ion batteries. Development of high-energy-density negative electrodes (anodes) remains to be a great challenge, especially because of significant differences between lithium and sodium chemistries. Two Na-ion anode materials – antimony (Sb) and phosphorus (P) – have been recently shown to offer excellent cycling stability (Sb) and highest known Na-ion charge storage capacity (P). In this work we report on the synergistic Na-ion storage in a P/Sb/Cu-nanocomposite, produced by mixing inexpensive colloidal Sb nanocrystals with red P and with copper (Cu) nanowires. In comparison to electrodes composed of only phosphorus, such P/Sb/Cu-composite shows much greater cycling stability providing a capacity of above 1100 mAh g(−1) after 50 charge/discharge cycles at a current density of 125 mA g(−1). Furthermore, P/Sb/Cu-composite also exhibits excellent rate-capability, with capacity of more than 900 mAh g(−1) at a high charge/discharge current density of 2000 mA g(−1). |
format | Online Article Text |
id | pubmed-4649624 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-46496242015-11-23 Inexpensive Antimony Nanocrystals and Their Composites with Red Phosphorus as High-Performance Anode Materials for Na-ion Batteries Walter, Marc Erni, Rolf Kovalenko, Maksym V. Sci Rep Article Sodium-ion batteries increasingly become of immense research interest as a potential inexpensive alternative to Lithium-ion batteries. Development of high-energy-density negative electrodes (anodes) remains to be a great challenge, especially because of significant differences between lithium and sodium chemistries. Two Na-ion anode materials – antimony (Sb) and phosphorus (P) – have been recently shown to offer excellent cycling stability (Sb) and highest known Na-ion charge storage capacity (P). In this work we report on the synergistic Na-ion storage in a P/Sb/Cu-nanocomposite, produced by mixing inexpensive colloidal Sb nanocrystals with red P and with copper (Cu) nanowires. In comparison to electrodes composed of only phosphorus, such P/Sb/Cu-composite shows much greater cycling stability providing a capacity of above 1100 mAh g(−1) after 50 charge/discharge cycles at a current density of 125 mA g(−1). Furthermore, P/Sb/Cu-composite also exhibits excellent rate-capability, with capacity of more than 900 mAh g(−1) at a high charge/discharge current density of 2000 mA g(−1). Nature Publishing Group 2015-02-12 /pmc/articles/PMC4649624/ /pubmed/25673146 http://dx.doi.org/10.1038/srep08418 Text en Copyright © 2015, Macmillan Publishers Limited. All rights reserved 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 in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Walter, Marc Erni, Rolf Kovalenko, Maksym V. Inexpensive Antimony Nanocrystals and Their Composites with Red Phosphorus as High-Performance Anode Materials for Na-ion Batteries |
title | Inexpensive Antimony Nanocrystals and Their Composites with Red Phosphorus as High-Performance Anode Materials for Na-ion Batteries |
title_full | Inexpensive Antimony Nanocrystals and Their Composites with Red Phosphorus as High-Performance Anode Materials for Na-ion Batteries |
title_fullStr | Inexpensive Antimony Nanocrystals and Their Composites with Red Phosphorus as High-Performance Anode Materials for Na-ion Batteries |
title_full_unstemmed | Inexpensive Antimony Nanocrystals and Their Composites with Red Phosphorus as High-Performance Anode Materials for Na-ion Batteries |
title_short | Inexpensive Antimony Nanocrystals and Their Composites with Red Phosphorus as High-Performance Anode Materials for Na-ion Batteries |
title_sort | inexpensive antimony nanocrystals and their composites with red phosphorus as high-performance anode materials for na-ion batteries |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4649624/ https://www.ncbi.nlm.nih.gov/pubmed/25673146 http://dx.doi.org/10.1038/srep08418 |
work_keys_str_mv | AT waltermarc inexpensiveantimonynanocrystalsandtheircompositeswithredphosphorusashighperformanceanodematerialsfornaionbatteries AT ernirolf inexpensiveantimonynanocrystalsandtheircompositeswithredphosphorusashighperformanceanodematerialsfornaionbatteries AT kovalenkomaksymv inexpensiveantimonynanocrystalsandtheircompositeswithredphosphorusashighperformanceanodematerialsfornaionbatteries |