Issue 19, 2021

Porous polyimide framework based on perylene and triazine for reversible potassium-ion storage

Abstract

Potassium-ion batteries have attracted considerable attention as an emerging energy-storage solution due to the abundance of potassium resources. The current development of potassium-ion batteries is, however, largely impeded by the lack of high-capacity and cyclable electrode materials. Herein, we report that porous polyimide frameworks (PIFs) based on perylene and triazine are a promising anode material for potassium-ion batteries. Thanks to the high-density electroactive imide groups and their robust molecular structure, our PIF delivers a large reversible specific capacity of ∼190 mA h g−1 at 0.2 A g−1, a good rate performance (∼115 mA h g−1 at 2 A g−1) and long cycling stability (83% capacity retention after 1000 cycles at 5 A g−1). These metrics render PIFs a highly promising anode material for potassium-ion batteries for future large-scale energy-storage applications.

Graphical abstract: Porous polyimide framework based on perylene and triazine for reversible potassium-ion storage

Supplementary files

Article information

Article type
Research Article
Submitted
28 شوال 1442
Accepted
04 محرم 1443
First published
05 محرم 1443

Mater. Chem. Front., 2021,5, 7184-7190

Porous polyimide framework based on perylene and triazine for reversible potassium-ion storage

J. Wu, S. Di, W. Huang, Y. Wu, Q. Huang, X. Zhao, X. Yu, M. Zhang, H. Ye and Y. Li, Mater. Chem. Front., 2021, 5, 7184 DOI: 10.1039/D1QM00843A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements