WS2-decorated graphene foam@CNTs hybrid anode for enhanced lithium-ion storage

Integrating nano-sized WS2 with conductive network has been extensively investigated for lithium-ion batteries (LIBs) and demonstrated to be effective. Herein, a 3D flexible graphene foam@carbon nanotubes@WS2 (GF@CNTs@WS2) hybrid has been prepared for LIBs anode applications. The components of GF, CNTs and WS2 in the hybrid foam can offer numerous open channels for the easy access of electrolyte, enhanced flexibility and conductivity, and active sites for electrochemical reactions, respectively. When evaluated as an anode material for LIBs, the GF@CNTs@WS2 electrode delivers a specific capacity of 931 mAh g(-1) at a current density of 0.1 A g(-1), high reversible capacity of 525 mAh g(-1) after 500 cycles at 0.2 A g(-1). Moreover, we believe this structural design can open up a route for electrodes design in advanced flexible energy-storage devices. (C) 2019 Elsevier B.V. All rights reserved.