Most electronic connector terminals require surface treatment, generally referred to as electroplating. There are two main reasons: one is to protect the terminal reed base material from corrosion; the other is to optimize the performance of the surface of the new energy circular terminal, establish and maintain the contact interface between the terminals, especially the film layer control.

1. Anti-corrosion: Most connector reeds are made of copper alloys, which usually corrode in the use environment, such as oxidation and vulcanization.
2. Surface optimization: The optimization of the terminal surface performance can be achieved in two ways. One is the design of the connector to establish and maintain a stable contact interface of the new energy circular terminal.
Non-precious metal plating differs from precious metals in that they always have a certain amount of surface coating. Since the purpose of the connector is to provide and maintain a metallic contact interface, the presence of these layers must be considered. In general, for electroplating of non-precious metals, the normal force requirement is high enough to break the film, thereby maintaining the integrity of the terminal contact interface. The scrubbing effect is also very important for the surface of the new energy circular terminal containing the film layer.