The stable voltage
profiles would be partly ascribed to the electrochemical
interfacial stability of the cellulose/PVDF-HFP composite
separator. Moreover, the initial discharge voltage were
comparable, 4.15 and 4.16 V for PP separator and cellulose/
PVDF-HFP composite separator, respectively, which was
higher than that of cellulose nonwoven (4.12 V).