fig8

Figure 8. (A) HOMO and LUMO levels of EMC, EC, DMC, FEC, LiPF₆, and LiPO₂F₂; Figure 8A is reprinted with permission from Ref.^[251]. Copyright © 2020 Wiley; (B) Cycling behavior of Li||Li symmetric cells at 0.5 mA cm^-2; Figure 8B is reprinted with permission from Ref.^[252]. Copyright © 2020 Wiley; (C) Long-term cycling of NCM/Li₂C₄O₄ and NCM/Li₂N₂C₇H₄O half-cells at 1 C; Figure 8C is reprinted with permission from Ref.^[254]. Copyright © 2025, American Chemical Society; (D) Design principles of LiMTFSI based on LiTFSI; Figure 8D is reprinted with permission from Ref.^[255]. Copyright © 2025 Wiley; (E) Chemical structures of the TFSI, FSI, and FTFSI anions.; Figure 8E is reprinted with permission from Ref.^[257]. Copyright © 2025 Wiley. LUMO: Lowest unoccupied molecular orbital; HOMO: highest occupied molecular orbital; EMC: ethyl methyl carbonate; EC: ethylene carbonate; DMC: dimethyl carbonate; FEC: fluoroethylene carbonate; LiPF₆: lithium hexafluorophosphate; LiPO₂F₂: lithium difluorophosphate; STD: 0.1 M LiPF₆ electrolyte; NCM: nickel cobalt manganese oxide; TFSI: bis(trifluoromethylsulphonyl)imide; MTFSI: (methanesulfonyl)(trifluoromethanesulfonyl)imide; FSI: fluorosulfonyl imide; FTFSI: (fluorosulfonyl)(trifluoro-methanesulfonyl)imide.