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Electrolytic Tough Pitch Copper Foil Current Collector – 4.5–50 µm Thickness Roll for Lithium-Ion Electrode Fabrication

Electrolytic Tough Pitch Copper Foil Current Collector – 4.5–50 µm Thickness Roll for Lithium-Ion Electrode Fabrication

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This Electrolytic Tough Pitch copper foil (≥99.8% purity) is designed for stable anode current collection in lithium-ion battery research and laboratory electrode fabrication. Available in thicknesses from 4.5 µm to 50 µm and widths between 80 mm and 280 mm, it is supplied on a 75 mm core to support controlled coating and cell assembly processes.

Defined surface roughness (Ra 0.22–0.25 µm, Rz 1.6 µm) enables consistent slurry adhesion. Tensile strength ranges from 360 MPa to 450 MPa depending on thickness. Suitable for pouch, cylindrical, and coin cell configurations used in battery research and electrochemical testing.

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Specification
Material Electrolytic Tough Pitch Copper (≥99.8% purity)
Temper H19
Structure Copper foil
Thickness Options 4.5 µm / 6 µm / 9 µm / 12 µm / 25 µm / 50 µm
Width 80–280 mm (depending on thickness)
Length According to selected thickness and width
Mass Resistivity 0.168 Ω·g/m²
Tensile Strength 360 MPa (4.5–6 µm), 410 MPa (9 µm), 450 MPa (12–25 µm)
Elongation (RT) 4.2%
Elongation (HT) 5.5%
Surface Roughness (Ra) 0.22–0.25 µm
Surface Roughness (Rz) 1.6 µm
Core Diameter 75 mm
Surface Property 25 µm single-side shiny; others double-side shiny
Packaging Rolled on core

Available Roll Dimensions

Thickness (µm) Width (mm) Length (m) Net Weight (kg)
4.5 180 350 2.5
4.5 280 220 2.5
6 180 525 5
6 280 333 5
9 180 310 5
9 230 250 5
9 280 170 4
12 180 240 5
12 280 155 5
25 80 120 2–2.5
25 150 120 4
50 180 120 2

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