PxSy nanoparticles encapsulated in graphene as highly reversible cathode for sodium ion batteries

作     者：Ting Wang Zhixiong Huang Donghuang Wang Jiqi Wu Junjie Lu Zihan Jin Shaojun Shi Yongqi Zhang Ting Wang;Zhixiong Huang;Donghuang Wang;Jiqi Wu;Junjie Lu;Zihan Jin;Shaojun Shi;Yongqi Zhang

作者机构：Jiangsu Laboratory of Advanced Functional MaterialSchool of Chemistry and Materials EngineeringChangshu Institute of TechnologyChangshu 215500China Yangtze Delta Region Institute(Huzhou)University of Electronic Science and Technology of ChinaHuzhou 313001China Jiangsu Institute of MetrologyNanjing 210023China Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu 611731China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2023年第34卷第1期

页      面：169-176页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0703[理学-化学] 

基　　金：sponsored by National Natural Science Foundation of China(Nos.21701017 52002052) 

主　　题：Sulfur Graphene Phosphosulfide Cathode Sodium ion battery 

摘      要：Herein,phosphorus-mediated sulfur nanoparticles encapsulated in reduced graphene oxide nanosheets(P-SrGO-T)were successfully synthesized as the cathode for sodium ion battery by a ball milling and the following thermal treatment.A series of covalent bonds,such as P–S,C–S–C,C–O–P and C–S–P,are formed in this process,which are in favor of fixing the sulfur and suppressing the parasitic shuttle effect of *** from the graphene sheets and these covalent bonds,a high reversible capacity of 637.4 m Ah/g was achieved in P-SrGO-T after 100 cycles at the current density of 0.2 A/*** addition,P-SrGO-T also delivers a high-rate capacity(330.7 m Ah/g at 5 A/g)attributing to low charge transfer resistance and faster ion diffusion *** work pushes the progress forward in developing phosphosulfide cathode for sodium ion batteries.