A sulfonated polyaniline with high density and high rate Na-storage performances as a flexible organic cathode for sodium ion batteries.
A Na-rich cathode is developed by grafting the electron-withdrawing -SO3Na group on polyaniline chains. Due to the immobile doping and effective activation of the sulfonate group, this polymer demonstrates a high capacity (133 mA h g(-1)) and excellent cyclability through a cation-exchange reaction, offering a low cost and sustainable cathode for SIBs.
State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, and State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China. kjiang@hust.edu.cn klwang@hust.edu.cn.
Min
M
Zhou
Wei
W
Li
Tiantian
T
Gu
Kangli
K
Wang
Shijie
S
Cheng
Kai
K
Jiang