Journal article 56 views
Interfacial Engineering of Polymer Membranes with Intrinsic Microporosity for Dendrite‐Free Zinc Metal Batteries
,
Hongzhen He ,
Anqi Wang ,
Toby Wong,
Yilin Yang,
Sunshine Iguodala,
Chunchun Ye ,
Dezhi Liu,
Zhiyu Fan,
Mate Furedi,
Guanjie He ,
Stefan Guldin ,
Dan J. L. Brett ,
Neil B. McKeown ,
Qilei Song
Angewandte Chemie International Edition, Volume: 63, Issue: 49, Start page: e202409322
Swansea University Author:
Rui Tan
Full text not available from this repository: check for access using links below.
DOI (Published version): 10.1002/anie.202409322
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 e...
| Published in: | Angewandte Chemie International Edition |
|---|---|
| ISSN: | 1433-7851 1521-3773 |
| Published: |
Wiley
2024
|
| Online Access: |
Check full text
|
| URI: | https://cronfa.swan.ac.uk/Record/cronfa68344 |
| 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. |
|---|---|
| Keywords: |
Energy storage , Zinc metal batteries, Ion-selective membranes, Polymers of intrinsic microporosity, Coating |
| College: |
Faculty of Science and Engineering |
| Funders: |
This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement No 851272, ERC-StG-PE8-NanoMMES). This work was also funded by the Engineering and Physical Sciences Research Council (EPSRC, UK, EP/V047078/1), and UK Research and Innovation (UKRI) under the UK government's Horizon Europe funding (101077226; EP/Y008707/1). M.F. is grateful for funding by an UCL Engineering Impact Studentship sponsored by Semilab Co. Ltd. A.A.F. and S.G. are grateful for funding by an EPSRC New Investigator Award (EP/R035105/1). |
| Issue: |
49 |
| Start Page: |
e202409322 |