Figure 4
From: Silicon/copper dome-patterned electrodes for high-performance hybrid supercapacitors
Electrochemical characterization of an intrinsic Si electrode and dome-patterned Si electrode in the Li-ion cell.
(a) CVs from 3 to 0.001 V at a 0.1 mV s−1 scan rate. (b) Charge and discharge voltage profiles for the first cycle for the intrinsic Si electrode and dome-patterned Si electrode (partial enlarged inset) at 0.05 C from 3 to 0.001 V. SEM images of (c) a pristine dome-patterned Si electrode and (d) an electrochemically lithiated Si electrode.
