Description
Electrolytic copper foil is a core material used as the anode current collector in lithium-ion batteries. Manufactured from high-purity red copper (≥99.9% Cu), this product ensures excellent electrical conductivity, low internal resistance, and reliable performance across various battery applications.
Produced through advanced electro-deposition processes, the copper foil features uniform thickness, smooth surface morphology, and strong mechanical properties. These characteristics enable consistent coating of anode materials such as graphite and silicon composites, improving battery efficiency and long-term cycling stability.
This material is widely used in electric vehicle batteries, energy storage systems, consumer electronics, and industrial lithium battery solutions. It is compatible with cylindrical, prismatic, and pouch cell manufacturing processes, making it suitable for both mass production and laboratory-scale development.
In lithium-ion batteries, copper foil functions as the current collector on the anode side. It plays a critical role in electron transport, ensuring efficient charge and discharge cycles. High-quality copper foil contributes directly to improved energy density, better rate performance, and extended battery lifespan.
From a manufacturing perspective, stable copper foil quality helps reduce defect rates, improve coating adhesion, and enhance overall battery consistency. As battery technologies evolve toward higher energy density and faster charging, the performance requirements for copper foil continue to increase.
Technical Specifications
Material: Red Copper
Purity (Cu): ≥99.9%
Alloy: Non-Alloy
Grade: Pure Copper
Width: 300 mm (customizable)
Processing Service: Decoiling
Application: Lithium-ion battery anode current collector
Place of Origin: Guangdong, China
Customization Options
Custom solutions are available to meet specific production requirements:
- Custom width and thickness
- OEM logo printing
- Customized packaging
- Graphic and labeling customization
Minimum order for customization: 10 rolls
Packaging and Delivery
Selling Unit: Single item
Package Size: 30 × 20 × 20 cm
Gross Weight: 3.0 kg
Secure packaging ensures safe transportation for both domestic and international shipments.
Supply Advantage
Manufactured in Guangdong, one of China’s key battery material production hubs, this electrolytic copper foil benefits from a mature supply chain, advanced production technology, and large-scale manufacturing capabilities. These advantages ensure stable quality, reliable delivery, and competitive pricing for global customers.
FAQ
What is electrolytic copper foil used for in lithium batteries?
It is used as the anode current collector, enabling efficient electron transfer and supporting active material coating.
What purity is required for battery-grade copper foil?
Typically ≥99.9% copper to ensure optimal conductivity and electrochemical stability.
Can the product be customized?
Yes, customization is available for dimensions, packaging, and branding.
Is this suitable for EV battery manufacturing?
Yes, it is widely used in EV batteries, energy storage systems, and advanced lithium-ion battery production.
Conclusion
Electrolytic copper foil is an essential component in lithium-ion battery manufacturing. With high purity, excellent conductivity, and stable performance, it directly impacts battery efficiency and lifespan. Choosing a reliable supplier ensures consistent quality and long-term competitiveness in the global battery industry.
Author Profile
- BatteryRing Sales Engineers bring over 20 years of experience in the global battery supply chain, positioning us as true industry experts. We provide end-to-end consulting services covering the entire battery lifecycle, including R&D, laboratory testing, product planning, material sourcing, manufacturing equipment, system design, and full production line construction. Our mission is to empower your energy business with efficient, scalable, and technically advanced solutions for accelerated growth.
Latest entries
simpleMay 4, 2026Semi-Auto Pouch Cell Stacking Machine for Lithium-ion Lab Battery R&D
simpleMay 4, 2026High-Efficiency Planetary Ball Mill for Lab Research & Nano-Grinding
simpleMay 4, 2026Semi-Automatic Lamination Stacking Machine for Battery Cells
simpleMay 4, 2026High-Power LFP Cells – BR Series 4500W/kg & 42C Pulse Rate
Reviews
There are no reviews yet.