Ma Dingtao, Li Yongliang, Zhang Peixin, Lin Zhiqun
College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518060, P. R. China.
Guangdong Flexible Wearable Energy Tools Engineering Technology Research Centre, Shenzhen University, Shenzhen, Guangdong, 518060, P. R. China.
ChemSusChem. 2018 Nov 9;11(21):3693-3703. doi: 10.1002/cssc.201801694. Epub 2018 Oct 18.
A high theoretical capacity of approximately 1400 mA h g makes SnO a promising anode material for sodium-ion batteries (SIBs). However, large volume expansion, poor intrinsic conductivity, and sluggish reaction kinetics have greatly hindered its practical application. The controlled creation of oxygen vacancy (OV) defects allows the intrinsic properties of SnO to be effectively modulated, but related work concerning SIBs is still lacking. In this Minireview, the mechanism of failure of SnO electrodes is discussed and an overview of recent progress in the general synthesis of OV-containing SnO materials and the feasible detection of OVs in SnO is presented. The use of OV-containing SnO -based anode materials in SIBs is also reviewed. Finally, challenges and future opportunities to engineer OVs for semiconductor oxides are examined.
约1400 mA h g的高理论容量使SnO成为钠离子电池（SIB）中一种有前景的负极材料。然而，大体积膨胀、本征导电性差和反应动力学迟缓极大地阻碍了其实际应用。可控地产生氧空位（OV）缺陷能够有效调节SnO的本征性质，但关于SIBs的相关工作仍很缺乏。在这篇综述中，讨论了SnO电极失效的机制，并概述了含OV的SnO材料的一般合成以及SnO中OV的可行检测方面的最新进展。还综述了含OV的SnO基负极材料在SIBs中的应用。最后，研究了为半导体氧化物设计OV所面临的挑战和未来机遇。
