Magnesium/Lithium Hybrid Batteries Based on SnS_(2)-MoS_(2) with Reversible Conversion Reactions

作     者：Xin Fan Mike Tebyetekerwa Yilan Wu Rohit Ranganathan Gaddam Xiu Song Zhao 

作者机构：School of Chemical EngineeringThe University of QueenslandSt.LuciaBrisbane 4072Australia School of Material Science and TechnologyNorth University of ChinaShanxiTaiyuan 030051China Dow Centre for Sustainable Engineering InnovationSchool of Chemical EngineeringThe University of QueenslandSt.LuciaBrisbane QLD 4072Australia Department of Chemical EngineeringIndian Institute of Science Education and ResearchBhopalIndia 

出 版 物：《Energy Material Advances》 (能源材料前沿（英文）)

年 卷 期：2022年第2022卷第1期

页      面：118-131页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：XF thanks the University of Queensland(UQ)for offering IPRS and UQ Centennial scholarships and the PhD research startup foundation of North University of China.The authors gratefully acknowledge the facilities and technical assistance of the Australian Microscopy and Microanalysis Research Facility at the UQ Centre for Microscopy and Microanalysis.This work was supported by the Australian Research Council(Project ARC FL170100101) the Research Project Supported by Shanxi Scholarship Council of China(2021-128) supported by the Fundamental Research Program of Shanxi Province(20210302124356) 

主　　题：electrode Reversible magnesium 

摘      要：The magnesium/lithium hybrid batteries(MLHBs)featuring dendrite-less deposition with Mg anode and Li-storage cathode are a promising alternative to Li-ion batteries for large-scale energy ***,their limited energy density limits their practical *** improve this,beyond the commonly proposed intercalation compounds,high-capacity conversion-type cathodes based on heterostructures of tin sulphide-molybdenum disulphide(SnS_(2)-MoS_(2))are proposed in this *** SnS_(2) is already a promising high-capacity electrode material for multivalent batteries and undergoes conversion reactions during the ion storage *** introduction of S-deficient MoS_(2) enhances the reversibility of SnS_(2) in the conversion reaction via strong polysulfide anchoring and catalytic *** results show that the SnS_(2)-MoS_(2) electrode achieves a high charge capacity of~600 mAhg^(-1) at 50mAg^(-1) and an excellent rate capability of 240mAhg^(-1) at 1000mAhg^(-1) with a negligible capacity fading rate of 0.063%per cycle across 1000 *** results highlight a new direction toward designing 2D heterostructures as high-capacity cathodes beyond intercalation-type cathodes for multivalent-ion batteries.