fig5

Figure 5. (A and B) EIS spectra before cycling and rate performance of Li/SPE-blank/LiFePO₄, Li/CSPE-15 dry-LLZO/LiFePO₄, and Li/CSPE-15 wet-LLZO/LiFePO₄ batteries, (C and D) Long-cycle performance and charge-discharge curves of Li/SPEs/LiFePO₄ batteries at 0.2 C at 60 °C, with the 50th cycle included, (E and F) Long-term cycling performance of Li/SPEs/LiFePO₄ batteries at 30 °C and 0.2 C, and the charge-discharge curves of the 50th cycle. EIS: Electrochemical impedance spectroscopy; SPE: solid polymer electrolytes; LLZO: Li_6.4Ga_0.2La₃Zr₂O₁₂.