Ion Transport Nanotube Assembled with Vertically Aligned Metallic MoS2 for High Rate Lithium‐Ion Batteries

• DOI: 10.1002/aenm.201702779
• Publication Date: 2018-01-12T08:46:34Z
• Authors: Yucong Jiao; Alolika Mukhopadhyay; Yi Ma; Lei Yang; Ahmed M. Hafez; Hongli Zhu
• Keywords: Molybdenum disulfide

Abstract Metallic phase molybdenum disulfide (MoS 2 ) is well known for orders of magnitude higher conductivity than 2H semiconducting MoS . Herein, the first time, authors design and fabricate a novel porous nanotube assembled with vertically aligned metallic nanosheets by using scalable solvothermal method. This has following advantages: (i) intrinsic high electrical that promotes rate performance battery eliminates conductive additive; (ii) hierarchical, hollow, porous, structure assists electrolyte transportation diffusion; (iii) tubular avoids restacking 2D nanosheets, therefore maintains electrochemistry cycling stability; (iv) shortened ion diffusion path, improves performance. 1D demonstrated to be promising anode material lithium‐ion batteries. The unique delivers an excellent reversible capacity 1100 mA h g −1 under current density 5 A after 350 cycles, outstanding 589 at 20 Furthermore, attributed material's properties, electrode comprising 100% pure without any additive provides ideal system fundamental electrochemical study reveals characteristic anodic peak 1.5 V in cyclic voltammetry 2. research sheds light on fabrication 1D, 2D, or even 3D structures as building blocks various applications.