| Autor: |
Sämann, Christian, Kelesiadou, Katerina, Hosseinioun, Seyedeh Sheida, Wachtler, Mario, Köhler, Jürgen R., Birke, Kai Peter, Schubert, Markus B., Werner, Jürgen H. |
| Předmět: |
|
| Zdroj: |
Advanced Energy Materials; 1/5/2018, Vol. 8 Issue 1, pn/a-1, 6p |
| Abstrakt: |
This study presents the first laser porosificated silicon anode for lithium-ion batteries. The pulsed laser induced pore creation improves the cycling stability of the d = 210 nm thick sputtered thin film anodes compared to plain Si. Galvanostatic cycling with a charge capacity limited to C = 932 mAh g−1 and a 2 C current rate shows a stable cycling for more than N = 600 cycles. After N = 3000 cycles the laser porosificated and crystallized Si has a remaining capacity of C3000 > 120 mAh g−1. Postmortem scanning electron microscopy images after N = 3000 cycles prove that the laser porosification reduces cracks in the active layer. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Plný text