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Application
- Aerospace & Aviation
- Low-Voltage Electrical (Electric Brush Wires）
- Chemical & Metallurgical Engineering Equipment
- Industrial Machinery & Equipment Clusters
- Superconducting Technology Applications
- Rail Transit Equipment
- Smart Grid & Power Transmission/Distribution Applications
- New Energy Wind Power
- Power Storage Equipment
- New Energy Vehicle Systems
- Products
Bridgold: China’s Leading Suppliers in EV Battery Pack Manufacturing with Modern Digital Factory Solutions
Deep Experience in EV Battery Packs
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.
Product Display
Product Details
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.
High-purity aluminum foil stacked welding; flexible conductivity eliminates loosening and poor contact caused by vibration; lightweight design reduces consumption and extends range.
T2 copper rolling/extrusion; high rigidity and current-carrying capacity; ideal for main-circuit fixed connections and mass production.
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.
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.
Frequently Asked Questions
Flexible connections—including Copper Foil Laminated Busbars, Aluminum Foil Flexible Connections, and Braided Busbars—are ideal. Their structural flexibility absorbs continuous dynamic vibrations, prevents terminal loosening, and resists fatigue.
We implement nickel-plated strip molecular diffusion welding. This method eliminates galvanic corrosion and transition weaknesses, supporting direct module-to-module laser welding without common electroplating limitations.
Molecular diffusion welding fuses multi-layer foil stacks into a seamless solid joint at molecular levels without filler metal, ensuring low contact resistance, minimal parasitic inductance, and superior mechanical durability.
Yes, we provide end-to-end customization including multi-layer compact flat profiles, specialized L/Z bending shapes, custom stamping, and precise hole patterns to fit demanding packaging envelopes.
Braided busbars offer multi-directional movement with very tight bending radii, open-weave heat dissipation, and higher tolerance for module alignment tolerances, making field installation easier and more durable.
All interconnection systems undergo rigorous thermal simulation and physical temperature-rise testing under high current loads, combined with multi-axis vibration testing to verify fatigue life across the complete vehicle lifecycle.