Alternating Voltage Introduced [001]-Oriented alpha-MoO3 Microrods for High-Performance Sodium-ion Batteries

作者：Li, Simin; Hou, Hongshuai; Huang, Zhaodong; Liao, Hanxiao; Qiu, Xiaoqing; Ji, Xiaobo^*

来源：Electrochimica Acta, 2017, 245: 949-956.

DOI：10.1016/j.electacta.2017.06.022

• Alternating voltage
• alpha-MoO3 microrods
• Anode
• Sodium-ion batteries

Rod-like alpha-MoO3 is successfully designed by alternating voltage induced electrochemical synthesis (AVIES) approach. The morphology and texture of MoO3 is effectively controlled by applying various calcination temperature of 300-600 degrees C. Notably, the alpha-MoO3 microrods growing along [001] direction have the high aspect ratio, and the randomly stacked structure can facilitate the charge transfer and offer more active sites for sodium storage. When utilized for sodium-ion batteries, it presents the high charge capacities of 305 mAh g(-1) at 1C and 143 mAh g(-1) at 10C. Even after 3000 cycles at 10C, a significant capacity of 108 mAh g(-1) is still delivered, highlighting its marvelous electrochemical properties. This work may be a compelling exploration for developing metal/metal oxides materials for sodium storages by AVIES.

• 出版日期2017-8-10
• 单位中南大学