Products Description
Copper Foil for Energy Applications
Overview:
Copper foil is a thin sheet made from high-purity copper, typically ranging in thickness from a few microns to several tens of microns. It features exceptional electrical and thermal conductivity, along with excellent flexibility, mechanical strength, and surface uniformity. Copper foil is produced primarily through two processes: electrolytic deposition and calendering. Depending on the application, it is available in various types such as standard copper foil, ultra-thin copper foil, and high-ductility copper foil.
Key Characteristics
High Electrical Conductivity
Provides superior current conduction, making it ideal for high-performance electronic and energy storage applications.
Excellent Flexibility
Adaptable to complex shapes and dynamic environments due to its outstanding bendability and tensile properties.
Smooth and Uniform Surface
Ensures compatibility with downstream processes such as coating, lamination, etching, and patterning.
Corrosion Resistance
After appropriate surface treatments, copper foil exhibits good oxidation and corrosion resistance, extending product life.
Variety in Thickness
Available in a wide range of thicknesses (typically 5–50μm) to meet different technical requirements.
Application Fields
- Battery Industry
Lithium-Ion Battery Anode Current Collector
Copper foil serves as the substrate for anode materials, enabling efficient electron flow and providing mechanical support for active substances.
It is required to have:
High electrical conductivity
Excellent flexibility
Strong mechanical durability to withstand repeated charge/discharge cycles
Power Batteries
Used in electric vehicles (EVs) and energy storage systems (ESS), where high strength and reliability are crucial.
Ultra-Thin Copper Foil
Applied in high energy density batteries to minimize weight and increase volumetric energy efficiency.
- New Energy Applications
Solar Cells
Copper foil functions as a conductive layer, helping enhance photoelectric conversion efficiency.
Fuel Cells
Acts as a conductive component, playing a vital role in ensuring efficient energy transfer in hydrogen and other advanced fuel cell systems.
Technical Parameters
| Mode:XW-C08-S | ||
| Width:300mm | ||
| Lenght: 383m | ||
| Thicness:8um | ||
| Copper foil for battery anode substrate | ||
| Item | Data | |
| width (mm) | 300mm | |
| Thickness (um) | 8 | |
| areal density (g/m2) | 75~80 | |
| Purity(%) More than 99.9% | Cu ≥99.9% | |
| Fe < 0.0010% | ||
| Bi < 0.00020% | ||
| Pb < 0.0005% | ||
| Tensile strength (MPa) | ≥294 | |
| Normal elongation(%) | 2.5 | |
| High temperature Tensile strength180℃(MPa) | ≥147 | |
| High temperature elongation180℃(%) | 2 | |