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. 2019 Jul 22;6(18):1900943. doi: 10.1002/advs.201900943

Figure 4.

Figure 4

a–c) SEM images of Li@Cu, d–f) Li@CF, and g–i) Li@PCSF electrodes after 100 cycles at 4 mA cm−2 with capacity of 1 mAh cm−2.