SnSe Nanosheet Array on Carbon Cloth as a High-Capacity Anode for Sodium-Ion Batteries
Binder-free electrodes offer a great opportunity for developing high-performance sodium-ion batteries (SIBs) aiming at the application in energy storage devices. Tin selenide (SnSe) is considered to be a promising anode material for SIBs owing to its high theoretical capacity (780 mA h g-1). In this work, a SnSe nanosheet array (SnSe NS) on a carbon cloth is prepared using a vacuum thermal evaporation method. The as-prepared SnSe NS electrode does not have metal current collectors, binders, or any conductive additives. In comparison with the electrode of SnSe blocky particles (SnSe BP), the SnSe NS electrode delivers a higher initial charge capacity of 713 mA h g-1 at a current density of 0.1C and maintains a higher charge capacity of 410 mA h g-1 after 50 cycles. Furthermore, the electrochemical behaviors of the SnSe NS electrode are determined via pseudocapacitance and electrochemical impedance spectroscopy measurements, indicating a faster kinetic process of the SnSe NS electrode compared to that of the SnSe BP. Operando X-ray diffraction measurements prove that the SnSe NS exhibits better phase reversibility than the SnSe BP. After the cycles, the SnSe NS electrode still maintains its particular structure. This work provides a feasible method to prepare SnSe nanostructures with high capacity and improved sodium ion diffusion ability.
National Natural Science Foundation of China["51672051","52072078"] ; Guangdong Basic and Applied Basic Research Foundation[2021A1515010138]
|WOS Research Area|
Science & Technology - Other Topics ; Materials Science
Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
|WOS Accession No|
Cited Times [WOS]:0
|Document Type||Journal Article|
|Department||School of Innovation and Entrepreneurship|
1.School of Physics and Optoelectronic Engineering,Guangdong University of Technology,Guangzhou,510006,China
2.School of Innovation and Entrepreneurship,Southern University of Science and Technology,Shenzhen,518055,China
3.School of Materials,Sun Yat-sen University,Shenzhen,518107,China
Yang，Wenlong,Chen，Yuncai,Yin，Xingxing,et al. SnSe Nanosheet Array on Carbon Cloth as a High-Capacity Anode for Sodium-Ion Batteries[J]. ACS applied materials & interfaces,2023,15(36):42811-42822.
Yang，Wenlong,Chen，Yuncai,Yin，Xingxing,Lai，Xiaofang,Wang，Jun,&Jian，Jikang.(2023).SnSe Nanosheet Array on Carbon Cloth as a High-Capacity Anode for Sodium-Ion Batteries.ACS applied materials & interfaces,15(36),42811-42822.
Yang，Wenlong,et al."SnSe Nanosheet Array on Carbon Cloth as a High-Capacity Anode for Sodium-Ion Batteries".ACS applied materials & interfaces 15.36(2023):42811-42822.
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