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Highly Ordered SnO(2) Nanopillar Array as Binder-Free Anodes for Long-Life and High-Rate Li-Ion Batteries

SnO(2), a typical transition metal oxide, is a promising conversion-type electrode material with an ultrahigh theoretical specific capacity of 1494 mAh g(−1). Nevertheless, the electrochemical performance of SnO(2) electrode is limited by large volumetric changes (~300%) during the charge/discharge...

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Autores principales: Dai, Liyufen, Zhong, Xiangli, Zou, Juan, Fu, Bi, Su, Yong, Ren, Chuanlai, Wang, Jinbin, Zhong, Gaokuo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8156522/
https://www.ncbi.nlm.nih.gov/pubmed/34063408
http://dx.doi.org/10.3390/nano11051307
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author Dai, Liyufen
Zhong, Xiangli
Zou, Juan
Fu, Bi
Su, Yong
Ren, Chuanlai
Wang, Jinbin
Zhong, Gaokuo
author_facet Dai, Liyufen
Zhong, Xiangli
Zou, Juan
Fu, Bi
Su, Yong
Ren, Chuanlai
Wang, Jinbin
Zhong, Gaokuo
author_sort Dai, Liyufen
collection PubMed
description SnO(2), a typical transition metal oxide, is a promising conversion-type electrode material with an ultrahigh theoretical specific capacity of 1494 mAh g(−1). Nevertheless, the electrochemical performance of SnO(2) electrode is limited by large volumetric changes (~300%) during the charge/discharge process, leading to rapid capacity decay, poor cyclic performance, and inferior rate capability. In order to overcome these bottlenecks, we develop highly ordered SnO(2) nanopillar array as binder-free anodes for LIBs, which are realized by anodic aluminum oxide-assisted pulsed laser deposition. The as-synthesized SnO(2) nanopillar exhibit an ultrahigh initial specific capacity of 1082 mAh g(−1) and maintain a high specific capacity of 524/313 mAh g(−1) after 1100/6500 cycles, outperforming SnO(2) thin film-based anodes and other reported binder-free SnO(2) anodes. Moreover, SnO(2) nanopillar demonstrate excellent rate performance under high current density of 64 C (1 C = 782 mA g(−1)), delivering a specific capacity of 278 mAh g(−1), which can be restored to 670 mAh g(−1) after high-rate cycling. The superior electrochemical performance of SnO(2) nanoarray can be attributed to the unique architecture of SnO(2), where highly ordered SnO(2) nanopillar array provided adequate room for volumetric expansion and ensured structural integrity during the lithiation/delithiation process. The current study presents an effective approach to mitigate the inferior cyclic performance of SnO(2)-based electrodes, offering a realistic prospect for its applications as next-generation energy storage devices.
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spelling pubmed-81565222021-05-28 Highly Ordered SnO(2) Nanopillar Array as Binder-Free Anodes for Long-Life and High-Rate Li-Ion Batteries Dai, Liyufen Zhong, Xiangli Zou, Juan Fu, Bi Su, Yong Ren, Chuanlai Wang, Jinbin Zhong, Gaokuo Nanomaterials (Basel) Article SnO(2), a typical transition metal oxide, is a promising conversion-type electrode material with an ultrahigh theoretical specific capacity of 1494 mAh g(−1). Nevertheless, the electrochemical performance of SnO(2) electrode is limited by large volumetric changes (~300%) during the charge/discharge process, leading to rapid capacity decay, poor cyclic performance, and inferior rate capability. In order to overcome these bottlenecks, we develop highly ordered SnO(2) nanopillar array as binder-free anodes for LIBs, which are realized by anodic aluminum oxide-assisted pulsed laser deposition. The as-synthesized SnO(2) nanopillar exhibit an ultrahigh initial specific capacity of 1082 mAh g(−1) and maintain a high specific capacity of 524/313 mAh g(−1) after 1100/6500 cycles, outperforming SnO(2) thin film-based anodes and other reported binder-free SnO(2) anodes. Moreover, SnO(2) nanopillar demonstrate excellent rate performance under high current density of 64 C (1 C = 782 mA g(−1)), delivering a specific capacity of 278 mAh g(−1), which can be restored to 670 mAh g(−1) after high-rate cycling. The superior electrochemical performance of SnO(2) nanoarray can be attributed to the unique architecture of SnO(2), where highly ordered SnO(2) nanopillar array provided adequate room for volumetric expansion and ensured structural integrity during the lithiation/delithiation process. The current study presents an effective approach to mitigate the inferior cyclic performance of SnO(2)-based electrodes, offering a realistic prospect for its applications as next-generation energy storage devices. MDPI 2021-05-15 /pmc/articles/PMC8156522/ /pubmed/34063408 http://dx.doi.org/10.3390/nano11051307 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Dai, Liyufen
Zhong, Xiangli
Zou, Juan
Fu, Bi
Su, Yong
Ren, Chuanlai
Wang, Jinbin
Zhong, Gaokuo
Highly Ordered SnO(2) Nanopillar Array as Binder-Free Anodes for Long-Life and High-Rate Li-Ion Batteries
title Highly Ordered SnO(2) Nanopillar Array as Binder-Free Anodes for Long-Life and High-Rate Li-Ion Batteries
title_full Highly Ordered SnO(2) Nanopillar Array as Binder-Free Anodes for Long-Life and High-Rate Li-Ion Batteries
title_fullStr Highly Ordered SnO(2) Nanopillar Array as Binder-Free Anodes for Long-Life and High-Rate Li-Ion Batteries
title_full_unstemmed Highly Ordered SnO(2) Nanopillar Array as Binder-Free Anodes for Long-Life and High-Rate Li-Ion Batteries
title_short Highly Ordered SnO(2) Nanopillar Array as Binder-Free Anodes for Long-Life and High-Rate Li-Ion Batteries
title_sort highly ordered sno(2) nanopillar array as binder-free anodes for long-life and high-rate li-ion batteries
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8156522/
https://www.ncbi.nlm.nih.gov/pubmed/34063408
http://dx.doi.org/10.3390/nano11051307
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