Interfacial engineering of polymer membranes with intrinsic microporosity for dendrite-free zinc metal batteries
Author(s)
Type
Journal Article
Abstract
Metallic zinc has emerged as a promising anode material for high-energy battery systems due to its high theoretical capacity (820 mAh g−1), low redox potential for two-electron reactions, cost-effectiveness and inherent safety. However, current zinc metal batteries face challenges in low coulombic efficiency and limited longevity due to uncontrollable dendrite growth, the corrosive hydrogen evolution reaction (HER) and decomposition of the aqueous ZnSO4 electrolyte. Here, we report an interfacial-engineering approach to mitigate dendrite growth and reduce corrosive reactions through the design of ultrathin selective membranes coated on the zinc anodes. The submicron-thick membranes derived from polymers of intrinsic microporosity (PIMs), featuring pores with tunable interconnectivity, facilitate regulated transport of Zn2+-ions, thereby promoting a uniform plating/stripping process. Benefiting from the protection by PIM membranes, zinc symmetric cells deliver a stable cycling performance over 1500 h at 1 mA/cm2 with a capacity of 0.5 mAh while full cells with NaMnO2 cathode operate stably at 1 A g−1 over 300 cycles without capacity decay. Our work represents a new strategy of preparing multi-functional membranes that can advance the development of safe and stable zinc metal batteries.
Date Issued
2024-12-02
Date Acceptance
2024-08-28
Citation
Angewandte Chemie International Edition, 2024, 63 (49)
ISSN
1433-7851
Publisher
Wiley
Journal / Book Title
Angewandte Chemie International Edition
Volume
63
Issue
49
Copyright Statement
© 2024 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
License URL
Identifier
https://www.ncbi.nlm.nih.gov/pubmed/39195347
Subjects
ANODE
Chemistry
Chemistry, Multidisciplinary
Coating
ELECTROLYTE
Energy storage
FLOW
Ion-selective membranes
Physical Sciences
Polymers of intrinsic microporosity
Science & Technology
Zinc metal batteries
Publication Status
Published
Coverage Spatial
Germany
Article Number
e202409322
Date Publish Online
2024-11-25