Ball shaped silver coated copper: a unique solution for conductive fillers

Copper powder, as an ideal conductive filler, not only has a metallic luster and good conductivity, but also costs only one twentieth of silver. However, the active nature of fine copper powder leads to a decline in the performance of conductive materials over prolonged use. To address this issue, Advanced Institute Technology has launched a technology calledBall shaped silver coated copperThe unique structure of the new conductive filler enables it to maintain good conductivity while eliminating oxidation problems.

1. Preparation process of spherical silver coated copper

In order to prepare spherical silver coated copper, scientists have employed an advanced chemical reduction method. Firstly, they prepared a special template composed of special nanofibers that enable silver to form spherical shapes on its surface. Next, copper is dissolved in an appropriate solvent and comes into contact with silver balls. Copper ions will be reduced to solid copper on the surface of the silver balls, forming a spherical silver coated copper. Finally, with a simple step, the template can be removed from the spherical silver coated copper to obtain pure spherical silver coated copper filler.

2. Advantages and application prospects of ball shaped silver coated copper

Compared to traditional copper powder conductive fillers, spherical silver coated copper has the following obvious advantages:

Firstly, ball shaped silver coated copper has higher oxidation stability. Due to the silver ball being wrapped around copper, it can effectively isolate copper from contact with air, prevent copper oxidation, and thus extend the service life of conductive materials.

Secondly, the spherical silver coated copper maintains the conductivity of copper. Although silver is one of the best conductive metals, using pure silver as a conductive filler is not economical due to its high price. The ball shaped silver coated copper effectively solves this problem, as copper forms conductive channels on the surface of the silver ball wrapped in the outer layer, thereby maintaining high conductivity.

Thirdly, ball shaped silver coated copper has excellent decorative properties. Due to the silver ball being completely wrapped around the copper, the surface of the conductive material is smooth and has a good metallic luster, which greatly enhances its decorative properties.

Given the significant advantages of ball shaped silver coated copper, it has broad application prospects in fields such as conductive adhesives, conductive plastics, and conductive coatings. In the manufacturing process of electronic products, ball shaped silver coated copper can be applied to the production of components such as circuit boards, connectors, and conductive adhesives, thereby improving the performance and reliability of electronic products.

Summary:

　　Ball shaped silver coated copperAs a new type of conductive filler, it not only solves the problem of easy oxidation of fine copper powder, but also maintains the conductivity and decorative properties of copper. Its preparation process is simple and feasible, and it has broad application prospects. I believe that with the continuous advancement and innovation of technology, ball shaped silver coated copper will play an increasingly important role in the field of conductive materials.