The Synergetic Effect Induced High Electrochemical Performance of CuO/Cu2O/Cu Nanocomposites as Lithium-Ion Battery Anodes

Due to the high theoretical capability, copper-based oxides were widely investigated. A facile water bath method was used to synthesis CuO nanowires and CuO/Cu2O/Cu nanocomposites. Owing to the synergetic effect, the CuO/Cu2O/Cu nanocomposites exhibit superior electrochemical performance compared to...

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Autores principales: Lin-Hui Wang, Shang Gao, Long-Long Ren, En-Long Zhou, Yu-Feng Qin
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Publicado: Frontiers Media S.A. 2021
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spelling oai:doaj.org-article:872d47715a804bc5919e59d33778da0a2021-11-22T04:41:11ZThe Synergetic Effect Induced High Electrochemical Performance of CuO/Cu2O/Cu Nanocomposites as Lithium-Ion Battery Anodes2296-264610.3389/fchem.2021.790659https://doaj.org/article/872d47715a804bc5919e59d33778da0a2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fchem.2021.790659/fullhttps://doaj.org/toc/2296-2646Due to the high theoretical capability, copper-based oxides were widely investigated. A facile water bath method was used to synthesis CuO nanowires and CuO/Cu2O/Cu nanocomposites. Owing to the synergetic effect, the CuO/Cu2O/Cu nanocomposites exhibit superior electrochemical performance compared to the CuO nanowires. The initial discharge and charge capacities are 2,660.4 mAh/g and 2,107.8 mAh/g, and the reversible capacity is 1,265.7 mAh/g after 200 cycles at 200 mA/g. Moreover, the reversible capacity is 1,180 mAh/g at 800 mA/g and 1,750 mAh/g when back to 100 mA/g, indicating the excellent rate capability. The CuO/Cu2O/Cu nanocomposites also exhibit relatively high electric conductivity and lithium-ion diffusion coefficient, especially after cycling. For the energy storage mechanism, the capacitive controlled mechanism is predominance at the high scan rates, which is consistent with the excellent rate capability. The outstanding electrochemical performance of the CuO/Cu2O/Cu nanocomposites indicates the potential application of copper-based oxides nanomaterials in future lithium-ion batteries.Lin-Hui WangShang GaoLong-Long RenEn-Long ZhouYu-Feng QinFrontiers Media S.A.articleCuO/Cu2O/Cu nanocompositesCuO nanowireslithium-ion batteriesanodeswater bath methodelectrochemical performanceChemistryQD1-999ENFrontiers in Chemistry, Vol 9 (2021)
institution DOAJ
collection DOAJ
language EN
topic CuO/Cu2O/Cu nanocomposites
CuO nanowires
lithium-ion batteries
anodes
water bath method
electrochemical performance
Chemistry
QD1-999
spellingShingle CuO/Cu2O/Cu nanocomposites
CuO nanowires
lithium-ion batteries
anodes
water bath method
electrochemical performance
Chemistry
QD1-999
Lin-Hui Wang
Shang Gao
Long-Long Ren
En-Long Zhou
Yu-Feng Qin
The Synergetic Effect Induced High Electrochemical Performance of CuO/Cu2O/Cu Nanocomposites as Lithium-Ion Battery Anodes
description Due to the high theoretical capability, copper-based oxides were widely investigated. A facile water bath method was used to synthesis CuO nanowires and CuO/Cu2O/Cu nanocomposites. Owing to the synergetic effect, the CuO/Cu2O/Cu nanocomposites exhibit superior electrochemical performance compared to the CuO nanowires. The initial discharge and charge capacities are 2,660.4 mAh/g and 2,107.8 mAh/g, and the reversible capacity is 1,265.7 mAh/g after 200 cycles at 200 mA/g. Moreover, the reversible capacity is 1,180 mAh/g at 800 mA/g and 1,750 mAh/g when back to 100 mA/g, indicating the excellent rate capability. The CuO/Cu2O/Cu nanocomposites also exhibit relatively high electric conductivity and lithium-ion diffusion coefficient, especially after cycling. For the energy storage mechanism, the capacitive controlled mechanism is predominance at the high scan rates, which is consistent with the excellent rate capability. The outstanding electrochemical performance of the CuO/Cu2O/Cu nanocomposites indicates the potential application of copper-based oxides nanomaterials in future lithium-ion batteries.
format article
author Lin-Hui Wang
Shang Gao
Long-Long Ren
En-Long Zhou
Yu-Feng Qin
author_facet Lin-Hui Wang
Shang Gao
Long-Long Ren
En-Long Zhou
Yu-Feng Qin
author_sort Lin-Hui Wang
title The Synergetic Effect Induced High Electrochemical Performance of CuO/Cu2O/Cu Nanocomposites as Lithium-Ion Battery Anodes
title_short The Synergetic Effect Induced High Electrochemical Performance of CuO/Cu2O/Cu Nanocomposites as Lithium-Ion Battery Anodes
title_full The Synergetic Effect Induced High Electrochemical Performance of CuO/Cu2O/Cu Nanocomposites as Lithium-Ion Battery Anodes
title_fullStr The Synergetic Effect Induced High Electrochemical Performance of CuO/Cu2O/Cu Nanocomposites as Lithium-Ion Battery Anodes
title_full_unstemmed The Synergetic Effect Induced High Electrochemical Performance of CuO/Cu2O/Cu Nanocomposites as Lithium-Ion Battery Anodes
title_sort synergetic effect induced high electrochemical performance of cuo/cu2o/cu nanocomposites as lithium-ion battery anodes
publisher Frontiers Media S.A.
publishDate 2021
url https://doaj.org/article/872d47715a804bc5919e59d33778da0a
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