2024-06-21T15:01:32 n12093

Zn-ion ultrafluidity via bioinspired ion channel for ultralong lifespan Zn-ion battery

Viewed: 307

Rechargeable aqueous Zn-ion batteries have been deemed as a promising energy storage device. The dendrite growth and side reactions have hindered the practical application. Herein, inspired by the ultrafluidic and K+ ion-sieving flux through enzyme-gated potassium channels (KcsA) in biological plasma membranes, a metal-organic-framework (MOF-5) grafted with -ClO4 groups as functional enzymes is fabricated to mimic the ultrafluidic lipid-bilayer structure for gating Zn2+ “on” and anions “off” states. Resulting from the perfect Zn2+/SO42- selectivity (~10), enhanced Zn2+ transfer number ( ) and the ultrafluidic Zn2+ flux (1.9 ×10-3 mmol m-2 s-1 vs. 1.67 ×10-3 mol m-2 s-1 for KcsA). The symmetric cells achieve a lifespan of over 5,400 h at 10 mA cm-2/20 mAh cm-2. Specifically, the performance of the PMCl-Zn//V2O5 pouch cell keeps 81% capacity after 2,000 cycles at 1 A g-1. The regulated ion transport by learning from biological plasma membrane opens a new venue towards ultralong lifespan aqueous batteries.

Geographical area of data collection

kmlPolyCoords
153.027041,-27.477302

Publications

Fan Zhang, Ting Liao, Dongchen Qi, Tony Wang, Yanan Xu, Wei Luo, Cheng Yan, Lei Jiang, Ziqi Sun, Zn-ion ultrafluidity via bioinspired ion channel for ultralong lifespan Zn-ion battery, National Science Review, 2024;, nwae199, https://doi.org/10.1093/nsr/nwae199 http://dx.doi.org/https://doi.org/10.1093/nsr/nwae199

Research areas

Aqueous battery

Cite this collection

Zhang, Fan; (2024): Zn-ion ultrafluidity via bioinspired ion channel for ultralong lifespan Zn-ion battery. Queensland University of Technology. (Dataset) http://researchdatafinder.qut.edu.au/individual/n12093

Data file types

.pdf

Licence


Creative Commons Attribution 4.0 (CC-BY)
http://creativecommons.org/licenses/by/4.0/

Copyright

© Queensland University of Technology, 2024.

Dates of data collection

From 2023-05-01 to 2024-06-01

Contacts

Name: Fan zhang

Other

Date record created:
2024-06-11T17:13:03
Date record modified:
2024-06-21T15:01:32
Record status:
Published - Open Access