Unraveling the stabilization mechanism of solid electrolyte interface on ZnSe by rGO in sodium ion battery

作     者：Shuang Men Hui Zheng Dejun Ma Xiaolian Huang Xiongwu Kang Shuang Men;Hui Zheng;Dejun Ma;Xiaolian Huang;Xiongwu Kang

作者机构：School of Environment and EnergySouth China University of TechnologyGuangzhou 510006GuangdongChina Department of Chemical EngineeringNorthwest UniversityXi'an 710069ShaanxiChina School ofPhamacyGuangdong Pharmaceutical UniversityGuangzhou 510006GuangdongChina College of Chemistry and Chemical EngineeringGuangzhou UniversityGuangzhou 510006GuangdongChina 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2021年第30卷第3期

页      面：124-130页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 

基　　金：supported by the Fundamental Research Funds for Central Universities(SCUT Grant No.2019ZD22) the Guangdong Innovative and Entrepreneurial Research Team Program(No.2016ZT06N569) 

主　　题：ZIF-8 Zinc selenide Transition metal selenide Reduced graphene oxide XPS Solid electrolyte interface Sodium ion batteries 

摘      要：Transition metal selenides have been widely studied as anode materials of sodium ion batteries(SIBs),however,the investigation of solid-electrolyte-interface(SEI)on these materials,which is critical to the electrochemical performance of SIBs,remains at its *** in this paper,ZnSe@C nanoparticles were prepared from ZIF-8 and the SEI layers on these electrodes with and without reduced graphene oxide(rGO)layers were examined in details by X-ray photoelectron spectroscopies at varied charged/discharged *** is observed that fast and complicated electrolyte decomposition reactions on ZnSe@C leads to quite thick SEI film and intercalation of solvated sodium ions through such thick SEI film results in slow ion diffusion kinetics and unstable electrode ***,the presence of rGO could efficiently suppress the decomposition of electrolyte,thus thin and stable SEI film was ***@C electrodes wrapped by rGO demonstrates enhanced interfacial charge transfer kinetics and high electrochemical performance,a capacity retention of 96.4%,after 1000 cycles at 5 A/*** study might offer a simple avenue for the designing high performance anode materials through manipulation of SEI film.