Optimized Conductor Design For Energy Storage Connectors In High-frequency Transmission

When a conductor transmits high-frequency signals, the current tends to concentrate at the conductor's surface, while the internal current is relatively weaker. This is due to the interaction between eddy currents generated inside the conductor and the external magnetic field. According to Lenz's law, a changing magnetic field generates an induced electromotive force, which impedes the flow of internal current. The higher the frequency, the more pronounced this impediment, and the more significant the current concentration at the surface.

In practical applications of energy storage connector, the effective cross-sectional area of the conductor is actually smaller than the geometric cross-sectional area. This means that only a thin layer on the surface of the conductor truly participates in conductivity, and the contribution of the deeper conductor to current transmission is limited. This directly leads to an increase in the resistance value of battery storage connector, and consequently an increase in power loss.

To reduce resistance loss, the storage connector can use a multi-strand fine wire wound together structure instead of a single solid wire. This design fully utilizes the conductivity advantage of the conductor's surface. By increasing the overall surface area, multi-strand fine wires can provide a larger effective conductive area within the same material volume. In contrast, while a single thick wire may seem to have a sufficient cross-section, the current density in the center is actually much lower than at the surface, resulting in material waste.

Conductor surface treatment is also crucial. Using silver or gold plating on conductors can further reduce surface contact resistance. Silver possesses excellent electrical conductivity, with a resistivity lower than copper, making it outstanding in high-frequency applications. This surface coating, which only needs to cover the outer layer of the conductor, can significantly improve overall electrical performance while reducing costs.