A kind of ultra-thin electrolytic copper foil and its preparation method
An electrolytic copper foil, ultra-thin technology, applied in the field of electrolytic copper foil, can solve problems such as the difficulty in preparing ultra-thin copper foil, and achieve the effect of facilitating large-scale industrial production, good tensile strength and flatness, and simple process
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[0016] See figure 1 , figure 1 It is a process flow diagram of an embodiment of the ultra-thin electrolytic copper foil in the present invention. The ultra-thin electrolyte copper foil is prepared in the present invention, and the steps include:
[0017] S1: Set the anode plate and the cathode roller and is immersed in the copper electrolyte. Specifically, the materials and ratios of the anode plate, the cathode roller, and the copper electrolyte in this step are respectively described.
[0018] In the present embodiment, the anode polar plate is an activated coating plate comprising an activated coating and a substrate, wherein the activation coating comprises palladium, ruthenium, ruthenium, cobalt, lead, manganese, etc., activated coating The total amount of precious metal in the layer is not less than 2g / m 2 And the density of the ruthenium is 0.5 ~ 5g / m 2 The purpose of the above-described various precious metals in the activation coating is to make the surface of the ano...
Embodiment 1
[0026] S1: Select 2G / m 2 The activated coating of the ruthenium composition is formed into an anode plate and a chromium-plated stainless steel roller, and copper electrolyte is mixed with copper electrolyte with copper sulfate, sulfuric acid and hydrochloric acid. The copper electrolytic solution is 60 g / L, 100 g of sulfate. L, the chloride ion concentration of 25 mg / L, so immersed the anode polar plate and the cathode roller in the copper electrolyte.
[0027] S2: Apparatus, N, N-dimethyl dithiocaroxamide propane sulfonate, hydroxyethyl cellulose, and collagen mixing, additive, glycyne, glycyne The concentration of sodium sulfonate is 25 mg / L, N, N-dimethyl dithiomethymethyl propane sulfonate is 30 mg / L, the concentration of hydroxyethyl cellulose is 25 mg / L, the concentration of collagen is 120 mg / L and the molecular weight is 2200, and the disposed additive is added to the S1 step and uniformly mixed.
[0028] S3: Apply a direct current between the anode plate an...
Embodiment 2
[0030] S1: Select 2G / m 2 The activation coating of the ruthenium composition into the titanium plate, surface chrome-plated stainless steel roller as a cathode roller, mixed copper electrolyte with copper sulfate, sulfuric acid and hydrochloric acid, copper electrolytic solution of 75 g / L, 120 g of sulfuric acid L, the chloride ion concentration of 35 mg / L, dip the anode polar plate and the cathode roller in the copper electrolyte.
[0031]S2: Apparatus, N, N-dimethyl dithiocaroxamide propane sulfonate, hydroxyethyl cellulose, and collagen mixing, additive, glycyne, glycyne The concentration of sodium sulfonate is 25 mg / L, N, N-dimethyl dithiomethymethyl propane sulfonate is 45 mg / L, and the concentration of hydroxyethyl cellulose is 35 mg / L, the concentration of collagen is 150 mg / L and the molecular weight is 2500, and the disposed additive is added to the S1 step and the copper electrolyte is configured and mixed well.
[0032] S3: Apply a direct current between t...
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