• 10 months ago
In the realm of Tesla's battery swap technology, the integration of aluminum wire welding introduces a range of safety features, structural robustness, and welding advancements. This article explores the key attributes of this welding process, emphasizing safety measures, structural strength, and the welding technology applied.

Safety Protection:
The incorporation of aluminum wire in the welding process provides instantaneous safety protection. When reinserting the cell, the aluminum wire responds to overcurrent, impact, or potential fall damage by instantly fusing, ensuring the module's safety.

Strong Structure:
Utilizing AB glue, the welding process securely bonds the battery cell, PCB, and bottom plate. This robust structure remains resilient in diverse conditions, including vibrations and extreme temperatures, preventing any displacement.

Welding Technology:
1. Cold welding technology is employed to ensure that the coating of the battery cell remains undamaged during the welding process.
2. The production process is designed to eliminate the risk of fire explosions, effectively safeguarding individuals, products, and equipment.

Overcurrent Impact:
1. The aluminum wire acts as both a diversion in the battery pack and a resistor in the module.
2. During voltage fluctuations affecting the charger, the aluminum wire ensures a constant current, reducing potential damage to the battery cell during charging.

Uniform Overcurrent:
1. Resistance functions as a shunt and voltage division in the circuit.
2. Aluminum wire serves as resistance during the charging and discharging processes of each cell.
3. This uniform approach minimizes pressure differences and premature attenuation in cells with uneven charge and discharge characteristics.

Uniform Temperature Rise:
1. The single-sided, peeling welding process facilitates rapid heat dissipation.
2. Heat dissipation treatment on the negative electrode surface of the cell further enhances temperature regulation.
3. The temperature difference between battery packs is maintained within a narrow range of 5 degrees.

Neat and Beautiful:
1. The integration of collection lines and buses into the PCB board ensures a tidy and aesthetically pleasing appearance.
2. Aluminum wire welding secures the PCB plate to the module, contributing to an overall neat and attractive design.

Conclusion:
Incorporating aluminum wire welding into Tesla's battery swap process not only prioritizes safety and structural integrity but also leverages advanced welding technologies. This innovation ensures a reliable and visually appealing battery swapping experience, showcasing the commitment to excellence in Tesla's business model.
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