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Configuring hierarchical Ni/NiO 3D-network assisted with bamboo cellulose nanofibers for high-performance Ni–Zn aqueous batteries

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Abstract

The further application of Ni–Zn aqueous batteries is majorly restricted by nickel-based cathodes due to their low capacity and poor cycling stability, which requires the development of hierarchically nanostructured nickel and nickel oxides. Herein, we prepare a novel nickel-based electrode with hierarchical 3D networks by configuring nanostructured Ni and Ni/NiO nanoparticles onto bamboo-derived cellulose nanofibers (denoted as Ni/NiO-BCF). Owing to the high conductivity of carbonized nanofibers and enhanced Ni/NiO active sites exposed, the Ni/NiO-BCF electrode delivers a capacity of 248 mA h g−1 at 0.625 A g−1 and exhibits a good cycling stability (94.5% after 2000 cycles). The as-fabricated Ni/NiO-BCF//Zn battery shows a high capacity of 296 mA h g−1 at 0.625 A g−1 and excellent cycling stability (almost no decay after 1000 cycles). Notably, a peak energy density of 313.4 W h kg−1 is also achieved from the Ni/NiO-BCF//Zn battery. This work provides novel insights into developing elaborately-nanostructured electrodes from natural and sustainable resources for high-capacity and long-cycle energy storage systems.

Graphical abstract: Configuring hierarchical Ni/NiO 3D-network assisted with bamboo cellulose nanofibers for high-performance Ni–Zn aqueous batteries

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Supplementary files

Article information


Submitted
08 May 2020
Accepted
16 Jun 2020
First published
17 Jun 2020

Nanoscale, 2020, Advance Article
Article type
Paper

Configuring hierarchical Ni/NiO 3D-network assisted with bamboo cellulose nanofibers for high-performance Ni–Zn aqueous batteries

L. Jiang, L. Li, S. Luo, H. Xu, L. Xia, H. Wang, X. Liu, Y. Wu and Y. Qing, Nanoscale, 2020, Advance Article , DOI: 10.1039/D0NR03608K

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