NaZnHybridBattery_AFM_revised1129-HW.pdf (3.92 MB)
Download file

High-performance aqueous Na–Zn hybrid ion battery boosted by “water-in-gel” electrolyte

Download (3.92 MB)
journal contribution
posted on 01.03.2021, 15:06 by Wending Pan, Yifei Wang, Xiaolong Zhao, Yan Zhao, Xinhua Liu, Jin XuanJin Xuan, Huizhi Wang, Dennis Yiu Cheong Leung
Aqueous hybrid Na–Zn ion batteries (ASZIBs) are promising for large-scale energy storage due to their low cost and potential for high output voltage. However, most ASZIBs show limited discharge voltage (<2.0 V) and capacity (<100 mAh g–1) due to inefficient usage of the dual ions. In this study, a novel large-electrochemical-window “water-in-gel” electrolyte based CuHCF-CNT/Zn Na–Zn hybrid battery is proposed, which achieves a high extraction voltage of Na ion (2.1 V vs Zn/Zn2+), together with a large discharge specific capacity (260 mAh g–1) thanks to the Zn-ion insertion, delivering a superior energy density of 440 Wh kg–1. The hybrid battery also shows a high capacity retention of 96.8% after 450 cycles. Moreover, an ultrahigh discharge capacity of 1250 mAh g–1 is achieved when further coupled with the Zn-O2 reaction, delivering the promising application of ion intercalation and metal–air hybrid battery.

Funding

University of Hong Kong. Grant Number: 201711160009

SZSTI of Shenzhen Municipal Government. Grant Number: JCYJ20170818141758464

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Published in

Advanced Functional Materials

Volume

31

Issue

15

Publisher

Wiley

Version

AM (Accepted Manuscript)

Rights holder

© Wiley

Publisher statement

This is the peer reviewed version of the following article: PAN, W. ... et al, 2021. High-performance aqueous Na–Zn hybrid ion battery boosted by “water-in-gel” electrolyte. Advanced Functional Materials, doi:10.1002/adfm.202008783, which has been published in final form at https://doi.org/10.1002/adfm.202008783. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.

Publication date

2021-02-05

Copyright date

2021

ISSN

1616-301X

eISSN

1616-3028

Language

en

Depositor

Prof Jin Xuan. Deposit date: 28 February 2021

Article number

2008783