High-Performance Li-ion Batteries and Supercapacitors Base on Prospective 1-D Nanomaterials

Abstract

One-dimensional (1-D) nanomaterials with superior specific capacity, higher rate capability, better cycling peroperties have demonstrated significant advantages for high-performance Li-ion batteries and supercapacitors. This review describes some recent developments on the rechargeable electrodes by using 1-D nanomaterials (such as LiMn2O4 nanowires, carbon nanofibers, NiMoO4·nH2O nanorods, V2O5 nanoribbons, carbon nanotubes, etc.). New preparation methods and superior electrochemical properties of the 1-D nanomaterials including carbon nanotube (CNT), some oxides, transition metal compounds and polymers, and their composites are emphatically introduced. The VGCF/LiFePO4/C triaxial nanowire cathodes for Li-ion battery present a positive cycling performance without any degradation in almost theoretical capacity (160 mAh/g). The Si nanowire anodes for Li-ion battery show the highest known theoretical charge capacity (4277 mAh/g), that is about 11 times larger than that of the commercial graphite (-372 mAh/g). The SWCNT/Ni foam electrodes for supercapacitor display small equivalent series resistance (ESR, 52 m) and impressive high power density (20 kW/kg). The advantages and challenges associated with the application of these materials for energy conversion and storage devices are highlighted.

 Keywords: One-dimensional nanomaterials; Li-ion battery; Supercapacitor; Electrochemical property

 Citation: Dandan Zhao, Ying Wang and Yafei Zhang, “High-performance Li-ion batteries and Supercapacitors Base on 1-D Nanomaterials in Prospect”, Nano-Micro Lett. 3 (1), 62-71 (2011). http://dx.doi.org/10.3786/nml.v3i1.p62-71