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Figure 11. Lithium metal–LLZO interface at (A) and (B) 2 MPa. (A) 1D slices of the ex-situ⁷Li CSI experiment in the z-direction highlighting the lithium metal region between 200 and 280 ppm at (A) 2 MPa; (C) 7.4 MPa and; (E) 13 MPa, as indicated by the dashed region in (B), (D) and (E). Contour plot of ex-situ⁷Li CSI depicting a strong lithium metal resonance (~ 250 ppm) extending into the electrolyte region (0 ppm) in the z-direction at (B) 2 MPa; (D) 7.4 MPa and; (F) 13 MPa; (G) Simplified cartoon illustration of interface behavior. Copyright 2021, Springer Nature^[103]. LLZO: Li₇La₃Zr₂O₁₂; CSI: chemical shift imaging.