Figure 7

Comparison of electrochemical performances of ep-PBIPE and Celgard separator with 1.0 M LiPF₆ in EC/DMC electrolyte. (a) Ionic conductivities; (b) Interfacial resistances; (c) Rate performances of Li/LiFePO₄ cells; (d) Discharge/charge profiles at selected C-rates; (e) Long-term cycle performance at 6 C.