PP/PET composite copper foil can effectively suppress deformation and damage of electronic components

PP/PET composite copper foilIt is a new type of high-performance composite material composed of PP and PET, which has excellent electrical insulation, heat resistance, corrosion resistance, and arc resistance. Therefore, it is widely used in the packaging of electronic devices, chip packaging, and sensor manufacturing. The production process of PP/PET composite copper foil is to first treat the surface of PP and PET, then composite them together to cover a layer of copper film, and finally perform heat treatment to form the final PP/PET composite copper foil. PP/PET composite copper foil has excellent thermal stability, which can effectively resist the effects of high and low temperatures, suppress the deformation and damage of electronic components, and thus improve the reliability of electronic components.
PP/PET composite copper foil serves as the negative electrode current collector for lithium batteries, mainly supporting the negative electrode active material and collecting current. Traditional copper foil 99% high-purity electrolytic copperAs the main material, there are problems such as a high proportion of mass (about 13% of the total weight of lithium batteries), high cost (about 9% of the cost of lithium batteries), and limitations on the improvement of lithium battery energy density.

At present, lithium-ion copper foil is developing towards thinner and lighter materials, but there is a theoretical limit to the thinning of traditional copper foil, making it difficult to balance cost and performance. Composite copper foil breaks the bottleneck of traditional copper foil and has advantages such as high safety, high energy density, and low cost. It is a good alternative material for traditional lithium battery current collectors (aluminum foil and copper foil) and is leading a new round of industry trends.

Composite copper foilIt is a copper foil material with a sandwich structure formed by electroplating copper films on both sides of PET/PP and other polymer materials as the base film. It is different from traditional copper foil in terms of process principle, material composition, and performance characteristics. At present, the mainstream product is PET copper foil with a thickness of 6-6.5 μ m instead of traditional electrolytic copper foil with a thickness of 6-9 μ m.

In addition, PP/PET composite copper foil also has good moisture resistance, which can effectively resist the erosion of humid environments, thereby improving the service life of electronic components.
In summary, PP/PET composite copper foil is a very practical technology that can effectively block external electromagnetic waves and resist interference, thereby protecting internal electronic components from external interference. It can also improve the conductivity and moisture resistance of electronic components. Therefore, its application can significantly improve the reliability and stability of electronic components, making it a very practical technology. Therefore, PP/PET composite copper foil technology is expected to have greater development and application in the future.