Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10142276 | Journal of Alloys and Compounds | 2019 | 7 Pages |
Abstract
Li4Ti5O12 nanosheets (LTONS) embedded in three-dimensional amorphous carbon (3DAC) are fabricated by a facile hydrothermal method. Structure and morphology analyses confirm that the Li2TiO3 impurity phase is effectively suppressed in LTONS@3DAC and that the stacking of LTONS is also significantly inhibited in the porous matrix of the 3DAC, helpfully increasing the lithium ion diffusion coefficient. Compared to LTONS, LTONS@3DAC has a greatly enhanced electrochemical performance, including superior rate capabilities of 146, 142, and 140â¯mAh gâ1 at the current rates of 32, 48, and 64â¯C, respectively, and an excellent cycling stability of 140â¯mAh gâ1 after 700 cycles at 8â¯C. Therefore, the LTONS@3DAC composite is promising for applications in superior-rate lithium-ion batteries.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
N.Y. Yao, H.K. Liu, X. Liang, Y. Sun, X.Y. Feng, C.H. Chen, H.F. Xiang,