Rolled double-sided nickel plated copper foil | High end manufactured 'golden coat'

Today, as electronic components evolve towards miniaturization and high integration, even the slightest difference in material properties can determine the success or failure of a product. Advanced Institute Technology has launchedRolled double-sided nickel plated copper foilWith its unique process design and performance advantages, it is becoming a "hidden champion" in high-end manufacturing fields such as new energy, 5G communication, aerospace, etc. This composite material that combines conductivity, corrosion resistance, and processability is redefining the manufacturing standards for precision electronic components.

1、 Double sided nickel plating: a material revolution of 1 1>2

Traditional copper foil is prone to oxidation and failure in humid or corrosive environments, while pure nickel foil, although corrosion-resistant, lacks conductivity. Advanced Institute Technology uses double-sided nickel plating process to uniformly deposit 0.5-3 μ m nickel layer on the surface of rolled copper foil with a thickness of 0.005-0.1mm, forming a composite structure of "copper core nickel shield". This design not only retains the high conductivity of copper at 98% IACS (International Annealed Copper Standard), but also endows the material with the unique corrosion resistance of nickel - in the 5% NaCl salt spray test, the corrosion rate of nickel plated copper foil is reduced by 92% compared to pure copper foil.

The key to the double-sided nickel plating process lies in the control of the uniformity of the nickel layer.Advanced Institute of TechnologyUsing self-developed pulse electroplating technology, nickel atoms are deposited in a layered and orderly manner on the surface of copper foil by precisely controlling the current density and pulse frequency. Through laser confocal microscopy detection, the thickness deviation of the nickel layer is controlled within ± 0.1 μ m, and the surface roughness Ra is ≤ 0.05 μ m. This precise control of the microstructure provides an ideal substrate for subsequent etching processing and component mounting.

2、 Precision rolling: creating nanoscale flatness

The rolling process is the core link that determines the performance of copper foil. Advanced Institute Technology adopts a twelve roll cold rolling mill, which refines the grain size of copper materials to the level of 5-10 μ m through multiple passes of progressive rolling. This ultrafine grain structure enables the tensile strength of copper foil to reach 400-550MPa and the elongation to be maintained at 8-12%, which not only meets the deformation requirements of stamping processing but also avoids cracking of the nickel layer caused by excessive stretching.

In terms of thickness control, the equipment is equipped with a laser online thickness measurement system that can monitor the thickness of copper foil in real time. Through a closed-loop feedback system, the gap between the rollers is automatically adjusted to ensure that the thickness fluctuation of the entire copper foil roll does not exceed ± 0.5%. This millimeter level precision control enables nickel plated copper foil to effectively reduce signal attenuation in high-frequency circuits and significantly improve current distribution uniformity in new energy battery current collectors.

3、 Cross disciplinary applications: breakthroughs from laboratory to industrialization

In the field of new energy, nickel plated copper foil is used as the negative current collector for lithium-ion batteries. Its double-sided nickel plated structure can prevent direct contact between the copper foil and the electrolyte, increasing the battery's cycle life by more than 30%. According to actual test data from a leading power battery company, the capacity retention rate of batteries using advanced institute technology products still reaches 88% after 2000 cycles, which is 12 percentage points higher than the traditional copper foil solution.

In the field of electronic circuits, 0.01mm ultra-thin nickel plated copper foil has become a key material for 5G filters and high-density interconnect boards (HDI). Its surface flatness can meet the precision etching requirements of 0.3mm line width/spacing, and the presence of nickel layer further increases the component welding yield to 99.95%. A communication equipment supplier reported that after using this material, the failure rate of base station power amplifiers decreased by 60%, and maintenance costs were significantly reduced.

4、 Customized service: solving high-end manufacturing problems

Advanced Institute Technology has established a rapid response system from material design to mass production delivery. In response to the special requirements of copper foil heat resistance for new energy vehicle motors, the R&D team has developed a modified nickel plated copper foil that can withstand high temperatures of 220 ℃ by adjusting the composition of the nickel layer; To meet the ultimate pursuit of lightweight in the aerospace industry, the nickel layer thickness of 0.008mm ultra-thin copper foil has been successfully controlled within 0.8 μ m, reducing material density by 15% without affecting performance.

This "material genome" research and development model enables enterprises to customize more than 20 parameters such as nickel layer thickness, surface roughness, and grain orientation based on specific customer conditions. From laboratory sampling to mass production of tens of thousands of tons, the cycle has been compressed to within 45 days, providing material support for the iterative upgrade of high-end equipment.

As electronic components move towards the nanoscale and the new energy industry places strict demands on material performance,Rolled double-sided nickel plated copper foilWith its unique composite advantages, it has become a bridge connecting basic materials and terminal applications. Through continuous technological iteration, Advanced Institute Technology has not only redefined the performance boundaries of metal composite materials, but also provided key material solutions for the transformation and upgrading of high-end manufacturing in China. In this material competition without gunpowder, every micron of precision improvement injects strong momentum into industrial progress.