当前位置: X-MOL 学术Nano Energy › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
TiS2 Nanoplates: A High-Rate and Stable Electrode Material for Sodium Ion Batteries
Nano Energy ( IF 16.8 ) Pub Date : 2016-01-07 08:48:52
Yuping Liu, Hongtao Wang, Liang Cheng, Na Han, Feipeng Zhao, Peirong Li, Chuanhong Jin, Yanguang Li

Room temperature sodium-ion batteries are of great potential for large-scale energy storage applications because of the abundance and low cost of sodium resources. However, their future viability will largely hinge on the development of high-capacity and stable electrode materials. In this study, we report thin TiS2 nanoplates as a possible cathode material for sodium-ion batteries. These nanoplates possess nanoscale dimensions and large surface areas. Their interlayer galleries are open toward the edges, providing easy access to the large internal space. Electrochemical measurements and multiple ex-situ studies demonstrate that TiS2 nanoplates are capable of fast and reversible Na+ intercalation and deintercalation. They deliver a large capacity close to full Na+ intercalation (186mAh/g), high rate capability (~100mAh/g at 10C) and satisfactory cycling stability at both low and high current rates. Our study suggest that with proper nanostructure engineering, two-dimensional layered materials may hold great promise as sodium ion battery electrode materials to enable fast and robust energy storage at low costs.

中文翻译:

TiS2纳米板:一种用于钠离子电池的高速率和稳定的电极材料

由于钠资源丰富且成本低廉,室温钠离子电池在大规模储能应用中具有巨大潜力。然而,它们未来的生存能力将在很大程度上取决于高容量和稳定电极材料的发展。在这项研究中,我们报道了薄的TiS 2纳米板可以作为钠离子电池的阴极材料。这些纳米板具有纳米级尺寸和大表面积。它们的夹层画廊朝向边缘开放,可轻松进入宽敞的内部空间。电化学测量和多次异位研究表明,TiS 2纳米板具有快速且可逆的Na +插层和脱插层。它们可提供接近完全Na +嵌入的大容量(186mAh / g),高倍率容量(在10C时约为100mAh / g)以及在低电流和高电流速率下均具有令人满意的循环稳定性。我们的研究表明,通过适当的纳米结构工程,二维分层材料有望成为钠离子电池电极材料,从而以低成本实现快速而稳定的能量存储。
更新日期:2016-01-08
down
wechat
bug