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. 2018 Feb 23;4(2):eaar4410. doi: 10.1126/sciadv.aar4410

Fig. 3. Li CEs and anode surface morphology of Li/Cu cells with bare Li or q-PET/Li electrode at a current density of 2.0 mA cm−2.

Fig. 3

(A) Comparison of Li CEs of cells with or without q-PET fabric at various current densities with the same areal capacity of 1.0 mA·hour cm−2. Top-view (B and C) and cross-sectional (D and E) SEM images of dendritic Li deposition on bare Cu foil after 30 cycles. Top-view (F and G) and cross-sectional (H and I) SEM images of dendrite-free Li deposition on q-PET fiber–modified Cu foil after 30 cycles.