The manufacturing method of electrolytic copper foil and electrolytic copper foil

The manufacturing method of electrolytic copper foil and electrolytic copper foil

  • CN 103,429,793 B
  • Filed: 03/28/2012
  • Issued: 03/05/2019
  • Est. Priority Date: 03/30/2011
  • Status: Active Grant
First Claim
Patent Images

1. electrolytic copper foil, wherein the sulphur concentration in copper foil is 10 mass ppm or more, 50 mass ppm hereinafter, surface roughness Rz is1.8 μ

  • m relative to the million times of observation STEM images obtained carried out using scanning transmission electron microscope hereinafter, formThe lattice at the interval 10nm, when measuring sulphur concentration using the intersection point of each lattice as measuring point, exist compared with the sulphur concentration in copper foil,The measuring point that sulphur concentration increases.

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