Description
Atomfair High-Precision Rolled Copper Foil
Product Overview
Core Specifications & Performance Parameters
| Specification Item | Specific Parameters |
|---|---|
| Base Material | C11000 Copper |
| Copper Purity | >99.99% |
| Thickness Range | 0.009–0.1mm (0.0003–0.004 inches) |
| Width Range | 150–450.0mm (5.9–17.6 inches) |
| Core Features | High purity; excellent surface finish; good flatness; precise dimensional tolerance; outstanding processability; high flexibility; high elongation; strong fatigue resistance; superior oxidation resistance; stable mechanical properties |
| Process Treatment | Degreasing treatment; anti-oxidation coating |
| Production Environment | Dust-free workshop (production & packaging) |
| Quality Standard | Compliant with strict international manufacturing standards; defect-free quality control |
Core Functional Advantages
Ultra-high Purity & Cleanliness
Balanced Mechanical & Corrosion Resistance
Precise Dimensional Control
Application Scenarios
- Industrial Heat Dissipation: Serves as the core material for heat sinks in automobiles, agricultural machinery, mining equipment, construction machinery, diesel locomotives, ships, and generator sets, enabling efficient heat conduction and dissipation to maintain equipment operating stability.
- Electronics & Electrical Engineering: Used in manufacturing high-end electronic components and printed circuit boards (PCBs), providing stable electrical conductivity and signal transmission performance for precision electronic devices.
- Energy Storage & Functional Materials: Acts as the base material for lithium-ion battery electrodes, electromagnetic shielding materials, and conductive components. Its oxidation resistance and processing compatibility ensure long service life and performance stability of end products.
- Import Substitution Solutions: Directly replaces equivalent-grade copper foil products from Japan and Western countries, helping customers shorten supply chains, reduce procurement costs, and enhance production efficiency.
Quality Compliance
- The product complies with ASTM B152 (Standard Specification for Copper Sheet, Strip, Plate, and Rolled Bar) international standards, ensuring consistent mechanical and physical properties.
- Surface treatment processes meet IPC-4562 specifications for metal foils used in printed circuit boards, matching the requirements of high-end electronics manufacturing.
- Quality control follows ISO 9001 quality management system standards, with full-process inspection to achieve defect-free product output.
The foil must be stored in a dry, dust-free environment to preserve the integrity of its anti-oxidation coating and degreased surface. Contamination from oils, solvents, or particulates can compromise surface cleanliness and functional performance.
- Contamination Prevention: Always handle the foil with clean, lint-free gloves to avoid transferring oils or debris onto the degreased surface.
- Storage Atmosphere: Maintain storage in sealed, moisture-barrier packaging under low-humidity conditions to prevent oxidation of the copper substrate.
- Handling Tools: Use clean, non-abrasive tools for cutting or unrolling to avoid scratching or deforming the foil surface.
What advantages does Atomfair's anti-oxidation rolled copper foil offer over standard electrolytic copper foil for lithium-ion battery anodes?
Atomfair rolled copper foil provides superior mechanical properties including high elongation, flexibility, and fatigue resistance due to its precision rolling process, whereas standard electrolytic foil is more brittle. Its copper purity exceeds 99.99% and the integrated anti-oxidation coating resists corrosion, ensuring longer cycle life and better adhesion for electrode coatings, with surface treatment compliant to IPC-4562 standards.
Can Atomfair rolled copper foil be directly used as a current collector in lithium-ion batteries without additional surface treatment?
Yes, the foil undergoes integrated degreasing and anti-oxidation treatments during production and is manufactured in a dust-free workshop, ensuring high surface cleanliness and oxidation resistance suitable for direct use in battery electrode manufacturing. Its thickness range of 0.009–0.1mm and width up to 450mm are compatible with standard automated coating lines.
What environmental controls are required during handling and storage of Atomfair anti-oxidation rolled copper foil?
The foil should be stored in its original dust-free packaging in a clean, dry environment to preserve the anti-oxidation coating and prevent surface contamination. Handling should avoid exposure to moisture and chemicals, as the integrated anti-oxidation treatment provides extended surface stability but is not a permanent barrier; the product is produced and packaged in a dust-free workshop to maintain cleanliness.
Atomfair's rolled copper foil delivers >99.99% purity and an anti-oxidation coating from dust-free production, enabling reliable performance in battery electrodes and electronics where surface cleanliness and mechanical endurance are required. However, the 9 μm minimum thickness and surface treatment demand contamination-free handling and precise process control to avoid damage or coating compromise.
Positive
- Ultra-high purity for minimal interference: With >99.99% copper purity and dust-free processing, the foil minimizes impurity-related defects in high-precision electronics and battery electrode applications, ensuring consistent electrical and thermal performance.
- Enhanced mechanical durability: The combination of degreasing and anti-oxidation treatments with high elongation and fatigue resistance allows the foil to withstand repeated bending and stress in long-cycle applications like battery electrodes without degradation.
Trade-offs
- Surface cleanliness sensitivity: The foil is produced and packaged in a dust-free workshop, so exposure to ambient particulates during handling can compromise surface cleanliness and require cleanroom-level storage and deployment procedures.
- Thin gauge fragility at lower limit: At the minimum thickness of 9 microns, the foil requires precise tension control and specialized cutting or laminating equipment to prevent tearing, wrinkling, or other mechanical damage during processing.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
