Flexible Membranes of MoS2/C Nanofibers by Electrospinning as Binder-Free Anodes for High-Performance Sodium-Ion Batteries

• Published in: Scientific reports Vol. 5; no. 1; p. 9254
• Main Authors: Xiong, Xiaoqin, Luo, Wei, Hu, Xianluo, Chen, Chaoji, Qie, Long, Hou, Dongfang, Huang, Yunhui
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 24.03.2015; Nature Publishing Group
• Subjects: 147/135; 147/143; 639/301/299/891; 639/925/357/551; Carbon; Electrodes; Humanities and Social Sciences; multidisciplinary; Science; Sodium
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/srep09254

A flexible membrane consisting of MoS 2 /carbon nanofibers has been fabricated by a simple electrospinning method. MoS 2 nanosheets are uniformly encapsulated in the inter-connected carbon nanofibers with diameters of ~150 nm. When evaluated as a binder-free electrode for sodium-ion batteries, the as-obtained electrode demonstrates high performances, including high reversible capacity of 381.7 mA h g −1 at 100 mA g −1 and superior rate capability (283.3, 246.5 and 186.3 mA h g −1 at 0.5, 1 and 2 A g −1 , respectively). Most importantly, the binder-free electrode made of MoS 2 and carbon nanofibers can still deliver a charge capacity of 283.9 mA h g −1 after 600 cycles at a current density of 100 m A g −1 , indicating a very promising anode for long-life SIBs.