Fig. 3: Side reaction resistance of PVDF-Sn@Zn gradient electrode.
From: Gradient design of imprinted anode for stable Zn-ion batteries
a Contact angles of 2 M ZnSO4 aqueous solution on the different electrodes. b Digital photos of different electrodes in the initial state and after immersion in 2 M ZnSO4 electrolyte for 7 days. XRD patterns of different electrodes c before and d after immersion in 2 M ZnSO4 electrolyte for 7 days. e Corrosion and f HER curves of different electrodes. In situ optical observations of g Zn foil and h PVDF-Sn@Zn gradient electrodes in symmetric transparent cells at 10 mA cm−2. Scale bar, 100 μm for g, h.
