Bridgold In EV battery pack

With over 40 years of expertise in copper busbars and braided wires, we possess in-depth knowledge of the challenges unique to EV battery packs—continuous vibration, tight space constraints, high-current transmission, and thermal management under dynamic driving conditions. From material selection and structural design to fatigue and temperature-rise validation, we offer customized solutions throughout the entire design cycle, ensuring long-term reliability and safety of interconnection systems.

Copper Foil Laminated Busbars : Multi-layer T2 copper foil via molecular diffusion welding; flexible to absorb vibration and protect terminals; flat profile saves space; low parasitic inductance; custom L/Z shapes.

Aluminum Foil Flexible Connections : High-purity aluminum foil stacked welding; flexible conductivity eliminates loosening and poor contact caused by vibration; lightweight design reduces consumption and extends range.

Copper Rigid Busbars : T2 copper rolling/extrusion; high rigidity and current-carrying capacity; ideal for main-circuit fixed connections and mass production.

Aluminum Rigid Busbars : One-shot stamping forming; suitable for humid, high-load-fluctuation environments. Nickel-plated strip molecular diffusion welding solves Cu-Al transition issues; supports laser welding between modules; low cost, avoids electroplating drawbacks.

Braided Busbars : Precision-braided from high-purity copper strands, featuring an extremely small bending radius and multi-directional flexibility to absorb road-induced shocks and relative displacements between modules. The braided structure distributes stress to resist high-frequency fatigue; open design enhances heat dissipation; high tolerance for installation errors simplifies assembly.