fig5

Figure 5. (A) SEM images of separators with different tortuosity and corresponding effects on Li⁺ deposition behavior; (B) Concentration distribution of Li⁺ in LT, MT, and HT host structures; (A and B) are reprinted with permission from Ref^[218], Copyright © 2025 Wiley. LT: Finger-like; MT: mixed finger–sponge; HT: sponge-like; SEM: scanning electron microscope.