Fig. 2: Electrochemical performance and morphology of cycled lithium metal in Li-symmetric cells and Li | NMC622 cells. | Nature Communications

Fig. 2: Electrochemical performance and morphology of cycled lithium metal in Li-symmetric cells and Li | NMC622 cells.

From: Suppressing electrolyte-lithium metal reactivity via Li+-desolvation in uniform nano-porous separator

Fig. 2: Electrochemical performance and morphology of cycled lithium metal in Li-symmetric cells and Li | NMC622 cells.

Initial voltage profiles of the PP separator (red) and Zr-MOCN@PP (black)-based cells at a fixed current density of: a 1 mA cm−2. b 10 mA cm−2. Top-view SEM images of the lithium metal after 340 h stripping/plating in c, d. The PP separator-based symmetric lithium cell; e, f Zr-MOCN@PP-based symmetric lithium cell; insets are photos of the corresponding lithium metal electrode. g Cycling stability and Coulombic efficiency of Li | NMC622 cells with the PP separator (red) and Zr-MOCN@PP (black) at 0.2 C rate; the voltage range of charge and discharge is 2.7–4.6 V. h, i Charge/discharge voltage profiles with the PP separator and Zr-MOCN@PP based cells, respectively. SEM images of Li metal after 100 cycles with: j, k PP separator, l, m Zr-MOCN@PP separator; insets are photos of the corresponding lithium metal electrode.

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