High-Purity Oxygen-Free Copper (OFC) For EV High-Voltage Connection Systems in Germany
Published On: July 1, 2026
High-Purity Oxygen-Free Copper (OFC) For EV High-Voltage Connection Systems in Germany
Project Background
A German electric vehicle component manufacturer required advanced copper materials for its next-generation 800V high-voltage powertrain system. The key requirements included extremely low electrical resistance, high conductivity stability, excellent ductility, and long-term thermal reliability.
Our Solution
We supplied high-purity oxygen-free copper (OFC, purity ≥99.99%) with customized processing according to their engineering drawings:
- Precision rolled copper strip with thickness tolerance ±0.002mm
- Stress-relief annealing treatment
- Anti-oxidation surface protection
- Excellent formability for complex stamping components
Application Results
The material was used in high-voltage connector plates and busbar systems. During vehicle testing, it demonstrated:
- Approximately 12% reduction in electrical resistance
- Significant improvement in thermal performance
- No cracking during stamping process
- Excellent long-term operational stability
Customer Feedback
The client highly valued the consistency of material quality and has incorporated this specification into its long-term supply chain strategy.
