@article{Gao2024, 
author = {Cankun Gao and Xiaoling Cui and Caiyun Wang and Mengya Wang and Shumin Wu and Yin Quan and Peng Wang and Dongni Zhao and Shiyou Li},
title = {3D-printed hierarchical porous and multidimensional conductive network based on conducting polymer/graphene oxide},
year = {2024},
journal = {Journal of Materiomics},
volume = {10},
number = {1},
pages = {234-244},
keywords = {3D printing, PEDOT:PSS, Thick electrodes, Areal capacity, Lithium-ion batteries},
url = {https://www.sciopen.com/article/10.1016/j.jmat.2023.05.012},
doi = {10.1016/j.jmat.2023.05.012},
abstract = {Designing ultrathick and hierarchical electrodes is effective to deal with the challenge of high areal capacity and high power density for lithium-ion batteries (LIBs) manufacturing. Here, a thick electrode with hierarchical porous and multidimensional conductive network is fabricated by 3D printing technology, in which both the conducting polymer of poly(3,4-ethylene dioxythiophene):polystyrene sulfonate (PEDOT:PSS) and graphene oxide (GO) play the dual roles as binders and conductive agents. As a consequence, the 3D-printed thick electrode (~900 μm) with a mass loading of ~47 mg/cm2 exhibits a good rate capability of 122 mA·h/g at 2 C, a high areal capacity of up to 5.8 mA·h/cm2, and stable cycling performance of ~95% capacity retention after 100 cycles. Moreover, the C-O-S bond is further confirmed by the spectral analysis and the DFT calculation, which not only hinders the stack of nanosheets but enhances the mechanical stability and electronic conductivity of electrodes. A stable covalent multidimensional conductive network constructed by 3D-printing technology provides a new design strategy to improve the performance of LIBs.}
}