Cycle Stability of Dual-Phase Lithium Titanate (LTO)/TiO2 Nanowires as Lithium Battery Anode
| Main Authors: | He, Yillin Fan, Chu, Dongzhi Yang, Zhuo, Zhensheng |
|---|---|
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Pandawa Institute
, 2021
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| Subjects: | |
| Online Access: |
https://journal.pandawainstitute.com/index.php/jmans/article/view/8 https://journal.pandawainstitute.com/index.php/jmans/article/view/8/38 |
Daftar Isi:
- This work studied cycle stability of dual-phase Lithium Titanate (LTO)/TiO2 nanowires as a lithium battery anode. Dual-phase LTO/TiO2 nanowires were successfully synthesized by hydrothermal method at various times lithiation of 10, 24, and 48 h at 80 °C. SEM images show that the morphology of dual-phase LTO/TiO2 is nanowires with a size around 100-200 nm in diameter. The XRD analysis result indicates nanowires main components are anatase (TiO2) and spinel Li4Ti5O12. The first discharge specific capacity of LTO/TiO2-10, LTO/TiO2-24, and LTO/TiO2-48 was 181.68, 175.29, and 154.30 mAh/g, respectively. After the rate capacity testing, the LTO/TiO2-10, LTO/TiO2-24, and LTO/TiO2-48 have maintained 161.25, 165.25, and 152.53 mAh/g separately. The retentions for each sample were 86.71, 92.86, and 89.79 %. Based on the results of electrochemical performance, increased LTO content helped increase samples cycle stability. However, the prolonged lithiation time also produced impurities, which reduced the cycle stability.