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Flexible Aluminum Foil Laminated Connectors for Lithium Batteries - China Suppliers & Factory Solutions
Advantages
Extreme flexibility: Multi-layer ultra-thin aluminum foil laminated structure minimizes bending stress, adapting to frequent vibration and thermal expansion/contraction inside battery packs.
Molecular diffusion welding: No additional solder; low contact resistance, excellent fatigue resistance, and uniform strong bonding.
Lightweight: 60%~70% weight reduction compared to copper connectors, helping to extend EV driving range.
Reliable conductivity: Pure aluminum provides stable conductivity, reducing the risk of loose contact or local overheating over long-term use.
Flexible customization: Number of layers, length, width, and terminal shape can be manufactured according to customer drawings or samples for various battery modules.
Product Display
Operating Conditions
Operating temperature range: -40℃ to +105℃ (short-term up to +120℃)
Suitable environment: Dry or indoor conditions with relative humidity ≤85% (typical inside battery packs)
Installation method: Fixed by bolts or laser welded to battery tabs; avoid excessive bending or twisting of the laminated body
Dynamic applications: Suitable for low-frequency vibration and small displacement (amplitude ≤2mm, frequency ≤50Hz) during vehicle operation
Electrical requirements: Suitable for DC or AC systems; rated voltage ≤1500V (for new-energy battery systems)
Maintenance
Check bolt torque every 6 months or during vehicle maintenance (torque wrench recommended).
Clean dust using dry, oil-free compressed air or a soft brush; do not use solvents or corrosive cleaners.
Inspect for delamination, broken foils or discoloration on edges. If single-layer lifting or severe oxidation is found, replace immediately.
Avoid continuous tensile or bending stress on the connector during installation to prevent fatigue life reduction.
Service Life
Under normal operating conditions (temperature, vibration, and current within design limits), the design service life of aluminum foil laminated connectors matches that of new-energy vehicle battery packs: typically 8–10 years.
After-Sales Service
Free technical support: engineering consultation, drawings...
Custom orders: lead time & quality report provided before shipment
Contact Us
Zhejiang Bridgold Copper Tech Co., Ltd. is a professional leader China aluminum laminated shunts, aluminum laminated flexible connectors, laminated aluminum connectors, aluminum foil laminated connectors, laminated aluminum foil connectors manufacturers and suppliers with high quality and low price. Welcome to contact us.
Frequently Asked Questions (FAQ)
What are the main advantages of aluminum foil laminated connectors over copper?
Aluminum foil laminated connectors offer a significant 60% to 70% weight reduction compared to copper connectors, which is critical for lightweight vehicle design and extending EV driving ranges, while still providing stable conductivity and cost efficiency.
How does molecular diffusion welding improve connector performance?
Molecular diffusion welding joins foil layers without using additional solder. This results in uniform strong bonding, low contact resistance, and outstanding fatigue resistance under high vibration environments.
Can aluminum foil laminated connectors be customized?
Yes, parameters such as the number of layers, overall length, width, insulation options, and terminal hole configurations can be fully customized according to client technical drawings and specifications.
What is the typical lifespan and maintenance requirement for these connectors?
Under rated operational parameters, the design life is 8–10 years. Maintenance generally requires routine bolt torque inspections every 6 months and visual inspections for oxidation or delamination.
What are the operating limits regarding temperature and voltage?
The standard operating temperature ranges from -40℃ to +105℃ (short-term tolerance up to +120℃), and they support AC or DC electrical systems with rated voltages up to 1500V.