Stacking of Tailored Chalcogenide Nanosheets around MoO2-C Conductive Stakes Modulated by a Hybrid POM subset of MOF Precursor Template: Composite Conversion-Insertion Cathodes for Rechargeable Mg-Li Dual-Salt Batteries

doi:10.1021/acsami.8b18607

	Stacking of Tailored Chalcogenide Nanosheets around MoO2-C Conductive Stakes Modulated by a Hybrid POM subset of MOF Precursor Template: Composite Conversion-Insertion Cathodes for Rechargeable Mg-Li Dual-Salt Batteries
	Wu, Chenglong; Hu, Jiulin; Tian, Jing; Chu, Fulu; Yao, Zhenguo; Zheng, Yongjian; Yin, Dongguang; Li, Chilin
刊名	ACS APPLIED MATERIALS & INTERFACES
	2019-02-13
卷号	11 期号:6 页码:5966
关键词	Mg-Li dual-salt electrolyte POM MOF NENU-5 chalcogenide cathodes Mg-based batteries
ISSN号	1944-8244
DOI	10.1021/acsami.8b18607
文献子类	Article
英文摘要	Mg anode has pronounced advantages in terms of high volumetric capacity, resource abundance, and dendrite-free electrochemical plating, which make rechargeable Mg-based batteries stand out as a representative next-generation energy storage system utilized in the field of large-scale stationary electric grid. However, sluggish Mg2+ diffusion in cathode lattices and facile passivation on the Mg anode hinder the commercialization of Mg batteries. Exploring a highly electroactive cathode prototype with hierarchical nanostructure and compatible electrolyte system with the capability of activating both an anode and a cathode is still a challenge. Here, we propose a POM subset of MOF (NENU-5) core-shell architecture as a hybrid precursor template to achieve the stacking of tailored, chalcogenide nanosheets around MoO2-C conductive stakes, which can be employed as conversion-insertion cathodes (Cu1.96S-MoS2-MoO2 and Cu2Se-MoO2) for Mg-Li dual-salt batteries. Li-salt modulation further activates the capacity and rate performance at the cathode side by preferential Li-driven displacement reaction in Cu+ extrusible lattices. The heterogeneous conductive network and conformal dual-doped carbon coating enable a reversible capacity as high as 200 mAh/g with a coulombic efficiency close to 100%. The composite cathode can endure a long-term cycling up to 400 cycles and a high current density up to 2 A/g. The diversity of MOF-based materials infused by functional molecules or clusters would enrich the nanoengineering of electrodes to meet the performance demand for future multivalent batteries.
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/27334]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Wu, Chenglong,Hu, Jiulin,Tian, Jing,et al. Stacking of Tailored Chalcogenide Nanosheets around MoO2-C Conductive Stakes Modulated by a Hybrid POM subset of MOF Precursor Template: Composite Conversion-Insertion Cathodes for Rechargeable Mg-Li Dual-Salt Batteries[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(6):5966.
APA	Wu, Chenglong.,Hu, Jiulin.,Tian, Jing.,Chu, Fulu.,Yao, Zhenguo.,...&Li, Chilin.(2019).Stacking of Tailored Chalcogenide Nanosheets around MoO2-C Conductive Stakes Modulated by a Hybrid POM subset of MOF Precursor Template: Composite Conversion-Insertion Cathodes for Rechargeable Mg-Li Dual-Salt Batteries.ACS APPLIED MATERIALS & INTERFACES,11(6),5966.
MLA	Wu, Chenglong,et al."Stacking of Tailored Chalcogenide Nanosheets around MoO2-C Conductive Stakes Modulated by a Hybrid POM subset of MOF Precursor Template: Composite Conversion-Insertion Cathodes for Rechargeable Mg-Li Dual-Salt Batteries".ACS APPLIED MATERIALS & INTERFACES 11.6(2019):5966.