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Binding snO_(2)Nanoparticles with MoS_(2)Nanosheets Toward Highly Reversible and Cycle-Stable Lithium/Sodium Storage

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Energy & Environmental Materials 2024年第4期7卷 135-142页

作者： Deliang Cheng Wenbiao Zhang Yi Tang Qingsheng Gao Renzong Hu Lichun Yang Min Zhu Institute of Advanced Materials Jiangxi Normal UniversityNanchang 330022China School of Materials Science and Engineering Guangdong Provincial Key Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhou 510641China College of Chemistry and Materials Science Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and ApplicationsJinan UniversityGuangzhou 510632China Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsLaboratory of Advanced Materials and Collaborative Innovation Center of Chemistry for Energy MaterialsFudan UniversityShanghai 200433China

snO_(2),with its high theoretical capacity,abundant resources,and environmental friendliness,is widely regarded as a potential anode material for lithium-ion batteries(LIBs).Nevertheless,the coarsening of the sn nanoparticles impedes the reconversion back to snO_(2),resulting in low coulombic efficiency and rapid capacity *** this study,we fabricated a heterostructure by combining snO_(2)nanoparticles with MoS_(2)nanosheets via plasma-assisted *** heterostructure consists of in-situ exfoliated MoS_(2)nanosheets predominantly in 1 T phase,which tightly encase the snO_(2)nanoparticles through strong *** configuration effectively mitigates the volume change and particle aggregation upon ***,the strong affinity of Mo,which is the lithiation product of MoS_(2),toward sn plays a pivotal role in inhibiting the coarsening of sn nanograins,thus enhancing the reversibility of sn to snO_(2)upon ***,the snO_(2)/MoS_(2)heterostructure exhibits superb performance as an anode material for LIBs,demonstrating high capacity,rapid rate capability,and extended ***,discharged/charged at a rate of 0.2 A g^(-1)for 300 cycles,it achieves a remarkable reversible capacity of 1173.4 mAh g^(-1).Even cycled at high rates of 1.0 and 5.0 A g^(-1)for 800 cycles,it still retains high reversible capacities of 1005.3 and 768.8 mAh g^(-1),***,the heterostructure exhibits outstanding electrochemical performance in both full LIBs and sodium-ion batteries.

关键词： 1 T-MoS_(2) heterostructure lithium-ion batteries sn coarsening snO_(2)

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