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Modelo: Battery System
Marca: htd
Origin: PORCELANA
Lugar de origen: PORCELANA
Posicionamiento del producto:
La barra colectora compuesta de puente interno del módulo HTD es un componente conductor compuesto clave responsable de la conexión cruzada precisa y la recolección de corriente entre celdas de batería individuales dentro de un módulo de batería de potencia. Utilizando una estructura compuesta de cobre y aluminio (con una proporción de volumen de capa de cobre de 15%-25%), logra conexiones en serie-paralela de múltiples celdas dentro de un espacio confinado, combinando alta conductividad superficial, propiedades livianas y resistencia a la fluencia. La tecnología compuesta de unión por rodillos de precisión garantiza una unión metalúrgica en la interfaz cobre-aluminio, garantizando una resistencia interfacial ≥30 MPa y un rendimiento confiable en condiciones de expansión del ciclo celular. Es un elemento central para mejorar la densidad de energía del módulo y la confiabilidad de la conexión.
Parámetros clave de rendimiento de la barra colectora de cobre a aluminio :
| Category | Specific Parameters | Test Standard |
| Composite Material Structure | Copper layer volume ratio: 15%-25% (adjustable); Density: 3.2-3.8 g/cm³ | Customer Spec / ICP-AES |
| Electrical Conductivity | DC Resistivity: ≤ 0.028 Ω·mm²/m; Carries 80%-85% of the current of a solid copper busbar of equivalent size. | GB/T 5585.1 |
| Rated Current |
Continuous Current: 60A–400A (custom length); Temperature Rise: ≤ 30K (@25°C ambient) |
Thermal Simulation Validation |
| Mechanical Properties | Tensile Strength: ≥ 85 MPa (Annealed); Bending Fatigue Life: >1000 cycles | ASTM E8 |
| Interfacial Bond Strength | Cu-Al Interface Shear Strength: ≥ 30 MPa; Peel Strength: ≥ 50 N/cm | Enterprise Standard |
| Insulation & Withstand Voltage |
Optional Insulation Coating; Withstand Voltage: ≥ 2500V AC (50Hz, 60s); Protection Class: IP67 | ISO 20653 |
| Operating Temperature |
-40°C ~ +105°C (Long-term); Short-term Withstand: 150°C | IEC 60068-2-14 |
| Dimensional Accuracy |
Mounting Hole Position: ±0.1 mm; Flatness: ≤ 0.15 mm/m | CMM Inspection |
| Step | Core Process | Key Technical Points | Output Standard |
| 1 | Composite Material Preparation | Cu-Al bimetal roll-bonding, online bright annealing | Interface shear strength ≥35MPa, no oxides |
| 2 | Precision Stamping/Bending | Multi-station progressive die processing, integrated anti-crack fillet design | Dimensional tolerance ±0.15mm, Cu layer wrinkle-free |
| 3 | Micro-Arc Forming | Servo bending, precise arc control | Plating thickness ≥5μm, cut surface insulation resistance ≥100MΩ |
| 4 | Connection Treatment | Laser welding / Resistance crimping | Withstand voltage ≥2500V AC |
| 5 | Insulation Coating | Nano-coating electrostatic spraying | Current rating, interface integrity verified |
| 6 | Comprehensive Testing |
Resistance, insulation, cycle testing |
Defect rate ≤0.01% |
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