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Modelo: Battery System
Marca: htd
Origin: PORCELANA
Lugar de origen: PORCELANA
Posicionamiento del producto:
La barra colectora compuesta del circuito principal del paquete HTD sirve como componente conductor central para la transmisión principal positiva/negativa de alta corriente dentro de los paquetes de baterías de energía. Diseñada con una estructura compuesta de cobre y aluminio de precisión (que presenta una capa de cobre del 20 % por volumen), esta barra colectora ofrece un equilibrio óptimo entre una conductividad superficial superior y una construcción liviana y rentable. Fabricado con tecnología avanzada de unión por rodillos, garantiza una unión metalúrgica a nivel atómico con una resistencia interfacial ≥35 MPa, lo que garantiza confiabilidad a largo plazo. Diseñado para funcionar de manera constante en temperaturas extremas de -40 °C a 105 °C, ofrece una excelente resistencia al agrietamiento por fatiga térmica. Al reemplazar los componentes de cobre sólido, esta innovadora barra colectora reduce significativamente el peso y el costo del sistema y, en última instancia, mejora la densidad energética general del paquete de baterías, lo que la convierte en la opción estratégica para las aplicaciones de vehículos eléctricos modernos.
Parámetros clave de rendimiento de la barra colectora de cobre a aluminio :
| Category | Specific Parameters | Test Standard |
| Composite Structure | Copper layer volume ratio: ~20% (Cu ~45wt%, Al ~55wt%); Density: ~3.94 g/cm³ | Customer Spec / ICP-AES |
| Electrical Conductivity | DC Resistivity: ≤ 0.02554 Ω·mm²/m (Annealed state); Carries ~86% current of equivalent pure copper busbar | GB/T 5585.1 |
| Current-Carrying Capacity |
Continuous Current: 150A – 3000A (section optimized); Temperature Rise: ≤ 40K (@25°C ambient) |
Thermal Simulation Validation |
| Mechanical Properties | Tensile Strength: ≥ 90 MPa (Annealed) / ≥ 110 MPa (Hard); Elongation: ≥ 11% (Annealed) | ASTM E8 |
| Interfacial Bond Strength | Cu-Al Interface Shear Strength: ≥ 35 MPa; Delamination-free up to 300°C | Enterprise Standard |
| Insulation & Protection |
Optional Insulation: Electrostatic Spraying, Fluidized Bed; Withstand Voltage: ≥ 2500V AC | ISO 20653 |
| Operating Temperature |
-40°C ~ +105°C (Long-term); Peak Withstand: ≥ 150°C (Short-term thermal shock) | IEC 60068-2-14 |
| Weight Saving Benefit |
~35% lighter than equivalent pure copper busbar; ~30% lower material cost. | Real-pack Comparison |
| Step | Core Process | Key Technical Points | Output Standard |
| 1 | Roll-Bonding & Blank Prep | Continuous Cu-Al roll bonding, online bright annealing | Interface shear strength ≥35MPa, no oxides |
| 2 | Precision Stamping/Bending | Multi-station progressive die, integrated anti-crack fillets | Dimensional tolerance ±0.15mm, Cu layer wrinkle-free |
| 3 | Connection Surface Treatment | Local selective plating (Ni/Sn), Micro-arc oxidation on cut Al surfaces | Plating thickness ≥5μm, cut surface insulation resistance ≥100MΩ |
| 4 | Insulation Application | Electrostatic powder spraying (Epoxy), mask connection areas | Withstand voltage ≥2500V AC |
| 5 | Comprehensive Testing | Loop resistance, interfacial bonding inspection | Current rating, interface integrity verified |
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