From the journal:

Chemical Communications

A polymer pillar for the VOPO4 cathode to retain voltage stability in aqueous zinc batteries

Yijie Jiang,†a   Tianshun He,†a   Ruoyao Wang,a   Hua-Yu Shi, ORCID logo *a   Chen Li,a   Shuo Li,a   Xiao-Xia Liu ORCID logo abc  and  Xiaoqi Sun ORCID logo *ab  

* Corresponding authors

a Department of Chemistry, Northeastern University, 3-11 Wenhua Road, Shenyang, China
E-mail: shihy@mail.neu.edu.cn, sunxiaoqi@mail.neu.edu.cn

b National Frontiers Science Center for Industrial Intelligence and Systems Optimization, 3-11 Wenhua Road, Shenyang, China

c Key Laboratory of Data Analytics and Optimization for Smart Industry (Northeastern University), Ministry of Education, China

Abstract

The H2O-pillared VOPO4 cathode in aqueous Zn batteries suffers phase transition to low-potential VOx, causing voltage decay. Replacing interlayer water with poly(3,4-ethylenedioxythiophene) (PEDOT) inhibits this transition via strong PEDOT–VOPO4 interactions, enabling a stable high voltage of 1.41 V. This work addresses a major challenge of the VOPO4 cathode for aqueous zinc batteries.

Graphical abstract: A polymer pillar for the VOPO4 cathode to retain voltage stability in aqueous zinc batteries

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Article information

DOI
https://doi.org/10.1039/D5CC02579F
Article type
Communication
Submitted
07 May 2025
Accepted
07 Aug 2025
First published
18 Aug 2025

Chem. Commun., 2025, Advance Article

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A polymer pillar for the VOPO4 cathode to retain voltage stability in aqueous zinc batteries

Y. Jiang, T. He, R. Wang, H. Shi, C. Li, S. Li, X. Liu and X. Sun, Chem. Commun., 2025, Advance Article , DOI: 10.1039/D5CC02579F

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