Figure 3.

Electrochemical performance of lithium–magnesium alloy anode. (a,b) Voltage profile of lithium cycling at room temperature in a symmetric Li_0.93Mg_0.07/Li_6.75La₃Zr_1.75Ta_0.25O₁₂/Li_0.93Mg_0.07 solid-state cell at 1 mA cm⁻² for 1 h in each half cycle for a total of 500 h (a), followed by 2 mA cm⁻² for 1 h in each half cycle for another 500 h (b). The average overpotentials during lithium plating/stripping at 1 and 2 mA cm⁻² were 0.030 and 0.035 V, respectively. Reproduced with permission from [124]. Copyright 2019 Wiley.