Super-Thin 4.5um Copper Foil

Cat No:BMBCC-0008

Description

Extremely thin electrolytic foil designed for maximizing the volumetric energy density of advanced lithium-ion and sodium-ion batteries.

Datasheet

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Basic Information

Substrate Material	Pure Copper
Purity (%)	≥99.99
Thickness (μm)	4.5
Width (mm)	280
Areal Density (g/m²)	40.0 - 42.0
Tensile Strength (MPa)	≥330
Elongation (%)	≥1.8
Surface Finish	Single-sided Matte
Surface Roughness (Ra, μm)	≤0.30
Electrical Resistivity (Ω·m)	1.65 x 10⁻⁸
Thermal Conductivity (W/m·K)	405
Melting Point (°C)	1085
Oxidation Resistance (Temp/Time)	150°C / 20min
Coating Type	N/A
Coating Thickness (μm)	N/A
Core ID (mm)	76
Standard Length (m)	1000
Operating Voltage Range (V)	0.0 - 2.0
Application Compatibility	Next-Gen Anodes
Storage Requirements	Nitrogen Box
Form Factor	Roll
Hydrophilic Properties	Ultra-Smooth
Compliance / Grade	Professional Grade

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