Nano-SnO2 Decorated Carbon Cloth as Flexible, Self-supporting and Additive-Free Anode for Sodium/Lithium-Ion Batteries

• 作者: Xu Yang Ying-Ying Wang Bao-Hua Hou Hao-Jie Liang Xin-Xin Zhao Haosen Fan Guang Wang Xing-Long Wu
• 来源期刊: 金属学报（英文版）
• 年，卷（期）: 2021,（3）
• 所属期刊栏目: Special Issue:Anode Materials for Rechargeable Batteries
• 页码范围: 390-400
• 页数: 11页
• 语种: 英文

摘要

In this study,nano-sized SnO2 decorated on carbon cloth (SnO2/CC) is prepared through a simple and facile solid method.The nano-sized SnO2 is uniformly distributed on the surface of carbon fibers in carbon cloth,providing sufficient free space to relieve volume expansion and reduce electrode pulverization during cycling.The as-prepared SnO2/CC as a flexible,self-supporting and additive-free anode electrode for sodium-ion/lithium-ion batteries (SIBs/LIBs) can demonstrate outstanding electrochemical performance.SnO2/CC after annealing at 350 ℃ (SC-350) as an anode for SIBs can deliver a reversible capacity of 0.587 mA h cm-2 at the current density of 0.3 mA cm-2 after 100 cycles.In addition,when cycling at 1.5 mA cm-2,SC-350 can maintain 1.69 mA h cm-2 after 500 cycles when used as LIB anode.These results illustrate that the as-prepared SnO2/CC can be a promising flexible anode material for flexible SIBs/LIBs and provide a simple and practical method for designing new flexible electrode materials.