| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1647008 | Materials Letters | 2012 | 4 Pages |
Si film was prepared by electrodepositing on Ni substrate. SEM images and EDS analysis illustrated that the Si film was obtained successfully. The Si film anodes displayed a high reversible specific capacity (over 2800 mAhg− 1), an excellent stability (little fading after 80 cycles at a current of 0.36 Ag− 1, corresponding to 0.1 C), high rate performances (850 mAhg− 1 at a current of 18 Ag− 1, corresponding to 5 C) and high electrochemical stability (The capacity was still more than 2600 mAhg− 1, when the current density returned to 0.36 Ag− 1 after cycling at the high current densities). Electrochemical impedance spectroscopy tests showed that the Li+ diffusion coefficient of the Si film was much higher than the pristine Si nanoparticles, which resulted in the high rate performances of the Si film.
►Si film anodes with a high capacity of 2800 mAhg− 1. ►An excellent stability of little fading after 80 cycles. ►A high rate performance (850 mAhg− 1) at a current of 18 Ag− 1.
