Journal of Engineering Research

As a core component of new energy vehicles, the battery pack plays a critical role in determining the structural stability and safety of the entire vehicle. Aluminum-magnesium alloy bolts, with their low density, high specific strength, and excellent corrosion resistance, have gradually replaced traditional steel bolts in battery system connections, achieving both weight reduction and enhanced reliability. By optimizing connection methods, improving manufacturing processes, and refining assembly control, the service performance of these bolts under complex operating conditions continues to improve. Combined with simulation analysis and experimental verification, their mechanical properties and long-term stability in practical applications have been effectively ensured. These technological advancements have contributed to an overall improvement in the safety performance of new energy vehicles, providing a feasible path for future lightweight development.

Aluminum-magnesium alloy bolt; New energy vehicle; Battery pack structure; Reliability assessment; Corrosion resistance