Effect of Oxide Nanoparticles on Thermal and Mechanical Properties of Electrospun Separators for Lithium-Ion Batteries

Figure 2

SEM images of PVDF-CTFE electrospun membranes (a) and PVDF-CTFE electrospun membranes containing SiO₂ 5 wt% (b), SiO₂ 10 wt% (c), and SnO₂ 5 wt% (d). Scale bar = 2 μm; insert scale bar = 0.5 μm.

(a)

(b)

(c)

(d)