Stabilization of Li₇La₃Zr₂O₁₂ Solid Electrolyte through Ga-Based Precipitates and the Ga–Au Surface Layer

Figure 4

Performance of symmetric cells with Ga precipitation in Li₇La₃Zr₂O₁₂ electrolyte: (a) photographs of a Li₇La₃Zr₂O₁₂ pellet after the application of molten Li at 300°C; (b) the Nyquist plots of the symmetric cells according to the presence or absence of Ga precipitation; (c) galvanostatic cycling performance of Li/Au/LLZO/Au/Li symmetric cells without and with Ga doping at a current density of 0.1 mA cm⁻² at room temperature.

(a)

(b)

(c)