Figure 12.

Design of new WCAs for SIBs. a) Synthesis route of Na⁺[MCTFSI]⁻. b) 3D molecular structure of Na⁺[MCTFSI]⁻ salts. Reproduced with permission. ^{[90 ]} Copyright 2019, Wiley VCH. c) Synthesis route of Na⁺[TDI]⁻ and Na⁺[PDI]⁻, where the R represents —CF₃ (TDI⁻) or —CF₂CF₃ (PDI⁻). d) Extended view of coordination environment of the sodium cation in Na⁺[TDI]⁻‐PC. e) Extended view of coordination sphere of the Na⁺ cation in Na⁺[PDI]⁻‐PC. f) View of 3D square grid supramolecular network of Na⁺[TDI]⁻‐PC projected onto the (1 0 0) plane. g) View of the 1D ladder‐like coordination polymer running along [010] direction in Na⁺[PDI]⁻‐PC. h) TG curves with derivative signal of NaTDI (left) and cyclic voltammograms of NaTDI‐PC electrolytes vs Na/Na⁺ electrodes. Reproduced with permission. ^{[91 ]} Copyright 2014, American Chemical Society.