Analysis of the Separator Thickness and Porosity on the Performance of Lithium-Ion Batteries

Figure 1

SEM images of the Celgard commercial separators trilayers (a) H2013 (porosity 45%) and (b) H2512 (porosity 50%); monolayers (c) 2400 (porosity 41%) and (d) PP2075 (porosity 48%).

(a)

(b)

(c)

(d)