Fig. 6. (a) Schematic illustration of LiFePO₄/PVDF-HFP-PEO-SiO₂ GPE/Li battery and PVDF-HFP-PEO-SiO₂ membrane. (b) Charge and discharge curves of LiFePO₄/GPEs/Li cells during the first cycle. (c) Cycling performance of LiFePO₄/GPEs/Li cells for 200 cycles at 0.1C rate. (d) Rate capability of LiFePO₄/GPE/Li cells based on Celgard 2325 separator, PVDF-HFP, and PVDF-HFP-PEO-SiO₂ GPEs. (e) Charge and discharge curves of LiFePO₄/PVDF-HFP-PEO-SiO₂ GPE/Li cell at various current densities from 0.1C to 2C.