Abstract
MoS2 shows promising potential in the application of lithium ion batteries (LIBs) or sodium ion batteries (SIBs), however, suffering from the sluggish kinetics and terrible volume expansion. Here we fabricate interlayer-expanded VMo2S4 nanosheets onto RGO and exhibit excellent electrochemical properties for lithium and sodium storage. The 2D nature and interlayer-expanded feature assure the shortened ion transfer path and improved diffusion kinetics. RGO substrates enhance the electric conductivity and preserve the material integrity. Based on such benefits, the present sample serves as advanced anode for both LIBs and SIBs, delivering reversible capacities of 1081 mAh g−1 for LIBs and 254 mAh g−1 for SIBs after 200 cycles at 1 A g−1.
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