fig2

Figure 2. Schematic illustrations of (A) General transport channel of Li ions in polymers^[49,50]. Reproduced from Ref.^[49] with permission. Copyright 2007, Purpose-LED Publishing. Reproduced from Ref.^[50] with permission. Copyright 2023 Wiley-VCH. (B) Fillers construct lithium-ion transport channels^[51]. Reproduced from Ref.^[51] with permission. Copyright 2023 Wiley-VCH. (C) Inert fillers reduce polymer crystallinity^[52]. Reproduced from Ref.^[52] with permission. Copyright 2017, Springer Link. (D) Lewis acid-base interaction between filler and polymer enhances cation selectivity. (E) The cation transport pathway is constructed by the Lewis acid-base interaction between filler and polymer^[53]. Reproduced from Ref.^[53] with permission. Copyright 2024, Wiley-VCH.