Issue 27, 2023

Electrode|electrolyte interface enhancement in quasi-solid-state zinc–air batteries through an anion conducting polymer electrolyte interlayer by in situ polymerization

Abstract

This work introduces a novel concept of electrode|electrolyte interface enhancement using an ultraviolet (UV) light-assisted in situ polymerization strategy to improve the performance of quasi-solid-state zinc–air batteries (ZABs). The suitability of the UV polymerization strategy to process a mechanically stable OH conducting anion exchange polymer electrolyte membrane (AEPEM) reinforced by a glass fiber (GF) separator is also reported. The in situ polymerized ionomer-skin/interlayer (a thin anion-conducting polymer coating over the air-cathode of ZAB) acts as a buffer layer to narrow down the performance gap generally observed between ZABs possessing quasi-solid-state electrolytes and standard liquid electrolytes, respectively. For instance, when combined with the in situ polymerization strategy, a rechargeable ZAB (rZAB) based on an AEPEM-GF composite membrane delivered a high power density of 140 mW cm−2, higher than that of the one without an in situ polymerized ionomer interlayer (120 mW cm−2). Notably, in a flexible rZAB configuration, this new strategy resulted in enhanced rate capability and cycling stability for 14 h at an operating current density of 2 mA cm−2.

Graphical abstract: Electrode|electrolyte interface enhancement in quasi-solid-state zinc–air batteries through an anion conducting polymer electrolyte interlayer by in situ polymerization

Supplementary files

Article information

Article type
Paper
Submitted
18 Apr 2023
Accepted
05 Jun 2023
First published
06 Jun 2023

J. Mater. Chem. A, 2023,11, 14776-14787

Electrode|electrolyte interface enhancement in quasi-solid-state zinc–air batteries through an anion conducting polymer electrolyte interlayer by in situ polymerization

M. Kurian, V. Vijayakumar, N. Manna, F. Kanheerampockil, S. Bhat and S. Kurungot, J. Mater. Chem. A, 2023, 11, 14776 DOI: 10.1039/D3TA02320F

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