Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 21st October 2020 from 07:00 AM to 07:00 PM (BST).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 42, 2019
Previous Article Next Article

Binder-free V2O5/CNT paper electrode for high rate performance zinc ion battery

Author affiliations

Abstract

Organic compounds, such as polyvinylidene fluoride (PVDF), have been widely used as a binder in battery electrode preparations. While such an approach does not have a significant impact on the performance of the batteries that utilize low valence ions, such as the Li ion battery (LIB), the diffusion of high valence ions (such as Zn2+) will be severely impaired. This will be especially pronounced if the polymeric binder contains highly electronegative atoms, such as fluorine. The high charge density ions, such as Zn2+, tend to adsorb onto these electronegative atoms, thus the mobility of these ions across the material is inevitably affected. As such, it becomes highly necessary to consider the binder-free electrode architecture when designing a high rate performing and cycling-stable zinc ion battery (ZIB) cathode. Herein, this work demonstrates an improved Zn ion battery by adopting a freestanding electrode. The obtained V2O5/CNT paper electrode delivers a specific capacity of 312 mA h gāˆ’1, while achieving a respectable 75% retention in capacity after increasing the current density by 10-fold. Furthermore, excellent cycling stability is recorded with 81% capacity retention after 2000 cycles at 1.0 A gāˆ’1. Thus, this work clearly demonstrated that the freestanding electrode is a promising approach for high valence ion batteries.

Graphical abstract: Binder-free V2O5/CNT paper electrode for high rate performance zinc ion battery

Back to tab navigation

Supplementary files

Article information


Submitted
29 Aug 2019
Accepted
27 Sep 2019
First published
02 Oct 2019

Nanoscale, 2019,11, 19723-19728
Article type
Communication

Binder-free V2O5/CNT paper electrode for high rate performance zinc ion battery

B. Yin, S. Zhang, K. Ke, T. Xiong, Y. Wang, B. K. D. Lim, W. S. V. Lee, Z. Wang and J. Xue, Nanoscale, 2019, 11, 19723
DOI: 10.1039/C9NR07458A

Social activity

Search articles by author

Spotlight

Advertisements