Suspending redox-active phenothiazine on a conjugated polythiophene cathode for aluminum dual-ion batteries

Ran Zhou; Wenyan Ma; Shiqi Zhang; Xiaolei Yuan; Jincan Cui; Heng Wang; Yu Chen; Jia-Xing Jiang; Chong Zhang

doi:10.1039/D5CC05811B

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Suspending redox-active phenothiazine on a conjugated polythiophene cathode for aluminum dual-ion batteries

Ran Zhou,^a Wenyan Ma,*^b Shiqi Zhang,^c Xiaolei Yuan,

^d Jincan Cui,^c Heng Wang,^c Yu Chen,

^a Jia-Xing Jiang

*^b and Chong Zhang

*^a

Author affiliations

* Corresponding authors

^a School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710062, China
E-mail: chongzhangabc@snnu.edu.cn

^b Key Laboratory of Flexible Optoelectronic Materials and Technology (Jianghan University), Ministry of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan 430056, China
E-mail: wenyanma@jhun.edu.cn, jiaxing@jhun.edu.cn

^c School of Mechanical Engineering, Nantong University, Nantong, China

^d School of Chemistry and Chemical Engineering, Nantong University, Nantong, China

Abstract

A conjugated polymer (PPTZT) featuring polythiophene mainchains with redox-active phenothiazine pendants is engineered as an anion-hosting cathode for aluminum dual-ion batteries. The synergistic function of the built-in electron-transfer pathway of the polythiophene backbone and electrochemically separated phenothiazine pendants endows PPTZT with a high capacity of 210 mAh g⁻¹ and excellent rate performance.

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Article information

DOI: https://doi.org/10.1039/D5CC05811B
Article type: Communication
Submitted: 12 Oct 2025
Accepted: 20 Oct 2025
First published: 23 Oct 2025

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Chem. Commun., 2025,61, 19056-19059

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Suspending redox-active phenothiazine on a conjugated polythiophene cathode for aluminum dual-ion batteries

R. Zhou, W. Ma, S. Zhang, X. Yuan, J. Cui, H. Wang, Y. Chen, J. Jiang and C. Zhang, Chem. Commun., 2025, 61, 19056 DOI: 10.1039/D5CC05811B

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Chemical Communications

Suspending redox-active phenothiazine on a conjugated polythiophene cathode for aluminum dual-ion batteries

Abstract

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Suspending redox-active phenothiazine on a conjugated polythiophene cathode for aluminum dual-ion batteries

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