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Issue 38, 2019
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Flexible all-in-one zinc-ion batteries

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Abstract

The recent development of flexible and wearable electronic devices has increased the demand for energy storage devices with excellent flexibility and structural stability. Aqueous zinc-ion batteries (ZIBs) are promising energy storage devices due to their low cost, high safety, and eco-friendliness. Therefore, flexible ZIBs have to be considered. Herein, we design the flexible all-in-one ZIBs, where the reduced graphene oxide/polyaniline (rGO/PANI) cathode, cellulose nanofiber (CNF) separator, and exfoliated graphene (EG)/Zn anode are integrated together using an all-freeze-casting strategy. The continuous seamless connection of such all-in-one ZIBs can avoid displacing and detaching between the electrodes and separator under different bending states and improve the load-transfer capacity and interface strength between the neighboring component layers. As a result, the all-in-one ZIBs show excellent flexibility and superior electrochemical stability under different bending states.

Graphical abstract: Flexible all-in-one zinc-ion batteries

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Article information


Submitted
29 Jul 2019
Accepted
25 Aug 2019
First published
26 Aug 2019

Nanoscale, 2019,11, 17630-17636
Article type
Paper

Flexible all-in-one zinc-ion batteries

Y. Zhang, Q. Wang, S. Bi, M. Yao, F. Wan and Z. Niu, Nanoscale, 2019, 11, 17630
DOI: 10.1039/C9NR06476A

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