Fig. 6: Stability characteristics of electrodes before and after cycling for Na||HESSe cell. | Nature Communications

Fig. 6: Stability characteristics of electrodes before and after cycling for Na||HESSe cell.

From: High-entropy sulfoselenide as negative electrodes with fast kinetics and high stability for sodium-ion batteries

Fig. 6

a, b 3D CT (15 × 13.6 × 15 µm3 and 15 × 13.3 × 15 µm3, in x × y × z directions) and Cu WL energy distribution slices at different depths of a pristine and b cycled (3.0 V charged state) for HESSe. SEM images of c HESSe, d LESSe and e CuS after 100 cycles at 1.0 A g−1.

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