• Good conductivity: Copper itself is an excellent conductive metal, and copper foil also inherits this characteristic, which can efficiently conduct current, making it indispensable in electronic circuits and other applications that require conductivity.
• High thermal conductivity: It can quickly conduct heat. In some electronic devices with high heat dissipation requirements, copper foil helps dissipate heat, thereby ensuring the normal and stable operation of the equipment.
• Flexibility and ductility: Especially for rolled copper foil, it has good flexibility and ductility, and is not easy to break under bending, curling, and other conditions. This is crucial for applications such as flexible circuit boards that need to adapt to different shape changes.
• Chemical stability: Copper foil is relatively stable in conventional environments, but in some specific corrosive environments, protective measures may need to be taken. For example, in lithium batteries, its stability in electrolyte environments may be enhanced through surface treatment and other methods.

Electronic industry:
（1）In the manufacturing of printed circuit boards (PCBs), copper foil is one of the core materials. Through etching and other processes, circuit wiring is formed on copper foil to achieve electrical connections between various electronic components. Almost all electronic devices, from mobile phones, computers to various household appliances, rely on copper foil for their internal PCB boards.
（2）For flexible circuit boards (FPCs), the flexibility advantage of rolled copper foil is fully utilized, and it is applied in the hinge connection parts of foldable mobile phones, laptops, various wearable electronic devices, and other circuit structures that require flexible bending and deformation.
Lithium battery industry: As the negative electrode current collector of lithium batteries, the quality and performance of copper foil directly affect the performance of lithium batteries. With the large-scale application of lithium batteries in electric vehicles, energy storage systems, and other fields, the demand for lithium battery copper foil is also constantly increasing. For example, a lithium battery used in an ordinary electric vehicle requires a large amount of copper foil as a current collector to ensure the normal charging and discharging function of the battery.
Architectural decoration industry: it can be used to decorate the interior and exterior walls, ceilings, doors and windows of buildings, creating visual effects in different styles such as classical, gorgeous or modern. It can also be used to decorate the surface of furniture, such as sticking copper foil on some high-end cabinets, wardrobes, and other furniture to enhance the grade and aesthetics of the furniture.
Electromagnetic shielding, copper foil has excellent electromagnetic shielding performance. In some places with strict requirements for electromagnetic interference, such as electronic laboratories, communication rooms, etc., the shielding material made of copper foil can effectively block external electromagnetic interference from entering the interior, and also prevent internal electromagnetic signal leakage, ensuring the normal operation of equipment and information security.