Keywords：LiFePO4 busbar, copper connector, battery terminal material
Connector material quality has a direct effect on conductivity and long-term reliability.
1. Copper vs. Aluminum
Copper is superior because:
- Higher conductivity
- Lower heat generation
- Better long-term stability
Aluminum requires thicker bars and anti-oxidation treatment.
2. Busbar Thickness Matters
Thin busbars limit current flow, causing:
- Voltage sag
- Power loss
- Heat buildup
For high-power ESS, thicker busbars ensure stable output.
3. Insulation and Coating
Proper insulation prevents:
- Short circuits
- Moisture penetration
- Corrosion
Powder-coated busbars are common in commercial ESS.
4. Mechanical Strength
Strong busbars reduce vibration-related loosening, especially in:
- Industrial systems
- Outdoor solar ESS
- Mobile power stations