Interfacial Engineering of Polymer Membranes with Intrinsic Microporosity for Dendrite-Free Zinc Metal Batteries

被引：0

作者：

Tan, Rui ^{[1
,2
]}

He, Hongzhen ^{[3
]}

Wang, Anqi ^{[1
]}

Wong, Toby ^{[1
]}

Yang, Yilin ^{[1
]}

Iguodala, Sunshine ^{[1
]}

Ye, Chunchun ^{[4
]}

Liu, Dezhi ^{[1
]}

Fan, Zhiyu ^{[1
]}

Furedi, Mate ^{[3
]}

He, Guanjie ^{[5
]}

Guldin, Stefan ^{[3
]}

Brett, Dan J. L. ^{[3
]}

McKeown, Neil B. ^{[4
]}

Song, Qilei ^{[1
]}

机构：

[1] Imperial Coll London, Dept Chem Engn, London SW7 2AZ, England

[2] Swansea Univ, Dept Chem Engn, Swansea SA1 8EN, Wales

[3] UCL, Dept Chem Engn, London WC1E 7JE, England

[4] Univ Edinburgh, EaStCHEM Sch Chem, Edinburgh EH9 3FJ, Scotland

[5] UCL, Dept Chem, London WC1E 7JE, England

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2024年 / 63卷 / 49期

基金：

欧洲研究理事会; 英国工程与自然科学研究理事会; 英国科研创新办公室;

关键词：

Energy storage; Zinc metal batteries; Ion-selective membranes; Polymers of intrinsic microporosity; Coating; FLOW; ELECTROLYTE; ANODE;

D O I：

10.1002/anie.202409322

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页数：11