Loading...
Please wait, while we are loading the content...
Similar Documents
Li-ion and Na-ion transportation and storage properties in various sized TiO2 spheres with hierarchical pores and high tap density
| Content Provider | Semantic Scholar |
|---|---|
| Author | Li, Yong Wang, Shuan He, Yan-Bing Tang, Linkai Kaneti, Yusuf Valentino Lin, Zhiqun Li, Baohua Yang, Quan-Hong Kang, Feiyu |
| Copyright Year | 2017 |
| Abstract | Titanium oxide (TiO2) has attracted great interest as a promising anode material for lithium (Li) ion batteries (LIBs) and sodium (Na) ion batteries (SIBs). However, the key factors that dictate the Li-ion and Na-ion storage and transportation in TiO2 remain unclear. Herein, we report a facile hydrolysis route to crafting a variety of high tap-density TiO2 spheres with controllable size and hierarchical pores. The Li-ion and Na-ion storage properties based on these TiO2 spheres were systematically investigated. The pore distribution and the size of TiO2 spheres were found to exert profound influence on the Li-ion and Na-ion storage and transportation. The Li-ion storage and transportation in dense TiO2 spheres was dependent mainly upon the micropore distribution and volume and independent of the size of spheres. In contrast, the excellent Na-ion storage and transportation in TiO2 spheres was enabled by the loose structure with a large macroscopic pore volume and shortened Na-ion diffusion length. High tap-density TiO2 spheres (1.06 g cm−3) with superior Li-ion and Na-ion storage properties were produced, exhibiting a Li-ion storage specific capacity of 189 mA h g−1 at 1C and a high capacity retention of 88.1% after 100 cycles, and a Na-ion storage specific capacity of 184 mA h g−1 at 1C and capacity retention of 90.5% after 200 cycles. The ability to understand the critical factors controlling the Li-ion and Na-ion storage in high tap-density TiO2 spheres enables their implementation for practical applications in Li-ion and Na-ion batteries. |
| Starting Page | 4359 |
| Ending Page | 4367 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C6TA08611J |
| Volume Number | 5 |
| Alternate Webpage(s) | http://nanofm.mse.gatech.edu/Papers/Li%20et%20al.%20JMCA.%202017,%205,%204359.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/C6TA08611J |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
