Abstract
Sodium-ion batteries(SIBs)and potassium-ion batteries(PIBs)have been attracting great attentions and widely been exploited due to the abundant sodium/potas-sium resources.Hence,the preparation of high-powered anode materials for SIBs/PIBs plays a decisive role for the commercial applications of SIBs/PIBs in the future.Man-ganese selenides are a class of potential anode materials for SIBs/PIBs because of their small band gap and high elec-trical conductivity.In this work,MnSe and ReS2 core-shell nanowires connecting by polydopamine derived carbon nanotube(MnSe@NC@ReS2)have been successfully synthesized from growing ReS2 nanosheets array on the surface of MnSe@NC nanowires,which present excellent Na+/K+storage performance.While applied as SIBs anode,the specific capacity of 300 mAh·g-1 was main-tained after 400 cycles at the current density of 1.0 A·g-1.Besides,it could also keep 120 mAh·g-1 specific capacity after 900 cycles at 1.0 A·g-1 for the anode of PIBs.These heterogeneous engineering and one-dimensional-two-di-mensional(1D-2D)hybrid strategies could provide an ideal strategy for the synthesis of new hetero-structured anode materials with outstanding battery performance for SIBs and PIBs.
基金项目
National Natural Science Foundation of China(52101243)
Natural Science Foundation of Guangdong Province(2023A1515012619)
Science and Technology Planning Project of Guangzhou(202102010373)
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