biostudies-literatureLu CNatural Science Foundation of Zhejiang ProvinceChina Postdoctoral Science Foundation738977https://www.ebi.ac.uk/biostudies/studies/S-EPMC8355597biostudies-literatureUnknown9Selenium-sulfur solid solutions (Se1-x S x ) are considered to be a new class of promising cathodic materials for high-performance rechargeable lithium batteries owing to their superior electric conductivity than S and higher theoretical specific capacity than Se. In this work, high-performance Li-Se1-x S x batteries employed freestanding cathodes by encapsulating Se1-x S x in a N-doped carbon framework with three-dimensional (3D) interconnected porous structure (NC@SWCNTs) are proposed. Se1-x S x is uniformly dispersed in 3D porous carbon matrix with the assistance of supercritical CO2 (SC-CO2) technique. Impressively, NC@SWCFrontiers in chemistrySupercritical CO2 Synthesis of Freestanding Se1-x S x Foamy Cathodes for High-Performance Li-Se1-x S x Battery.PMC8355597LY21E0200052020M671785 2020T130597Kumar GGZhang WXia YXiao ZHe XHuang HLu CFang RGan YWang KfalseSupercritical CO2 Synthesis of Freestanding Se1-x S x Foamy Cathodes for High-Performance Li-Se1-x S x Battery.Selenium-sulfur solid solutions (Se1-x S x ) are considered to be a new class of promising cathodic materials for high-performance rechargeable lithium batteries owing to their superior electric conductivity than S and higher theoretical specific capacity than Se. In this work, high-performance Li-Se1-x S x batteries employed freestanding cathodes by encapsulating Se1-x S x in a N-doped carbon framework with three-dimensional (3D) interconnected porous structure (NC@SWCNTs) are proposed. Se1-x S x is uniformly dispersed in 3D porous carbon matrix with the assistance of supercritical CO2 (SC-CO2) technique. Impressively, NC@SWC2021-01-01T00:00:00Z20212025-06-01T02:57:05.794Z2022-02-11T07:26:34.144ZS-EPMC83555973439539210.3389/fchem.2021.738977