Redox of naphthalenediimide radicals in a 3D polyimide for stable Li-ion batteries

Shuai Gu; Yatu Chen; Rui Hao; Jun Zhou; Iftikhar Hussain; Ning Qin; Muqing Li; Jingjing Chen; Zhiqiang Wang; Wei Zheng; Qingmeng Gan; Zhiqiang Li; Hao Guo; Yingzhi Li; Kaili Zhang; Zhouguang Lu

doi:10.1039/d1cc02426d

Redox of naphthalenediimide radicals in a 3D polyimide for stable Li-ion batteries

Chem Commun (Camb). 2021 Aug 5;57(63):7810-7813. doi: 10.1039/d1cc02426d.

Authors

Shuai Gu¹, Yatu Chen², Rui Hao³, Jun Zhou², Iftikhar Hussain², Ning Qin¹, Muqing Li³, Jingjing Chen³, Zhiqiang Wang³, Wei Zheng³, Qingmeng Gan³, Zhiqiang Li³, Hao Guo³, Yingzhi Li³, Kaili Zhang², Zhouguang Lu³

Affiliations

¹ Department of Mechanical Engineering, City University of Hong Kong, Kowloon, Hong Kong, P. R. China. kaizhang@cityu.edu.hk and Department of Materials Science and Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, Guangdong, P. R. China. luzg@sustech.edu.cn.
² Department of Mechanical Engineering, City University of Hong Kong, Kowloon, Hong Kong, P. R. China. kaizhang@cityu.edu.hk.
³ Department of Materials Science and Engineering, Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, Guangdong, P. R. China. luzg@sustech.edu.cn.

PMID: 34269362
DOI: 10.1039/d1cc02426d

Abstract

A 3D polyimide is designed as an organic cathode for Li-ion batteries. Detailed characterization and DFT simulations demonstrate that the 3D polyimide undergoes the redox of naphthalenediimide radicals and the rigidity effect of the 3D structure contributes to the stability of the radical intermediates for high-performance organic batteries.