Electric double layer capacitor  super capacitors  carbon coated aluminum foil

a) Total Width: 250.0 +/-1.0mm
b) Free Margin each end 15.0 +/-1.0mm
c) Total Thickness: 0.200 +/- 0.020mm
d) Al. Foil thickness: 0.20 +/- 0.002mm
e) Density of the active layer: 0.61gm/cc - minimum
f) Mother Roll Core ID = 76.2mm
g) Porosity of Activated Carbon: 0.7cm3/gm
h) Purity of Al. Foil: >99.7%
i) Specific Capacitance of the Active Layer: 12000f/m2
j) Volume resistivity of the Active layer: 20.0 Ohms - Max.