Fig. 2: Impact of PS on Zn plating/stripping behavior.
SEM images of a Cu electrodes and b Zn anodes in 1 M Zn(OTf)2 electrolyte and electrolyte with 1 wt% PS after 50 cycles at 2 mA cm−2 and 2 mAh cm−2. AFM and KPFM images of Zn anodes in (c) 1 M Zn(OTf)2 electrolyte and (d) electrolyte with 1 wt% PS after 50 cycles at 2 mA cm−2 and 2 mAh cm−2. e The 2D GIWAXS results and (f) (002) pole figures of Zn anodes in 1 M Zn(OTf)2 electrolyte and electrolyte with 1 wt% PS after 50 cycles at 2 mA cm−2 and 2 mAh cm−2. The change of feedback current by SECM area scan with the feedback mode on cycled Zn anode surface in (g) 1 M Zn(OTf)2 electrolyte and (h) electrolyte with 1 wt% PS. i Chronocoulometry and mass changes based on EQCM in different electrolytes at a scan rate of 10 mV s−1.
