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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
2019-02-13
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume11Issue:6Pages:5966
SubtypeArticle
AbstractMg 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.
KeywordMg-Li dual-salt electrolyte POM MOF NENU-5 chalcogenide cathodes Mg-based batteries
DOI10.1021/acsami.8b18607
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27334
Collection中国科学院上海硅酸盐研究所
Recommended Citation
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.
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