Freestanding three-dimensional core-shell nanoarrays for lithium-ion battery anodes

Guoqiang Tan, Feng Wu*, Yifei Yuan, Renjie Chen, Teng Zhao, Ying Yao, Ji Qian, Jianrui Liu, Yusheng Ye, Reza Shahbazian-Yassar, Jun Lu, Khalil Amine

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

157 引用 (Scopus)

摘要

Structural degradation and low conductivity of transition-metal oxides lead to severe capacity fading in lithium-ion batteries. Recent efforts to solve this issue have mainly focused on using nanocomposites or hybrids by integrating nanosized metal oxides with conducting additives. Here we design specific hierarchical structures and demonstrate their use in flexible, large-area anode assemblies. Fabrication of these anodes is achieved via oxidative growth of copper oxide nanowires onto copper substrates followed by radio-frequency sputtering of carbon-nitride films, forming freestanding three-dimensional arrays with core-shell nano-architecture. Cable-like copper oxide/carbon-nitride core-shell nanostructures accommodate the volume change during lithiation-delithiation processes, the three-dimensional arrays provide abundant electroactive zones and electron/ion transport paths, and the monolithic sandwich-type configuration without additional binders or conductive agents improves energy/power densities of the whole electrode.

源语言英语
文章编号11774
期刊Nature Communications
7
DOI
出版状态已出版 - 3 6月 2016

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Tan, G., Wu, F., Yuan, Y., Chen, R., Zhao, T., Yao, Y., Qian, J., Liu, J., Ye, Y., Shahbazian-Yassar, R., Lu, J., & Amine, K. (2016). Freestanding three-dimensional core-shell nanoarrays for lithium-ion battery anodes. Nature Communications, 7, 文章 11774. https://doi.org/10.1038/ncomms11774