Reliable Leak Detection for EV Battery Safety: Decowell RB Series in Action

Application Background
In the electric vehicle battery industry, leak detection is a critical process, especially around the welded areas of the battery housing. If the electrolyte inside a lithium battery leaks due to poor sealing, it may react violently with moisture in the environment. This not only poses serious safety and environmental risks but also shortens equipment lifespan and affects long-term product performance.

Solution Overview
To address these challenges, the project uses a Siemens PLC as the master controller and integrates Decowell's RB Series remote I/O modules. The system consists of three RB-1110 main units, twelve 16-channel digital input modules, and nine 16-channel digital output modules. The annual application volume of this configuration reaches two million I/O points, highlighting its scalability and reliability in large-scale manufacturing environments.

The RB Series modules are responsible for controlling high-precision area scan cameras that inspect the top, bottom, and sides of battery covers for defects. Unlike typical field devices that use current-type loads, the industrial cameras in this setup are voltage-type and require only a low-voltage signal to operate. Decowell's RB output modules are designed to be compatible with both current and voltage-type loads, ensuring seamless performance across various sensor types.

Application Benefits
The RB Series delivers accurate and efficient signal execution, ensuring that inspection commands are transmitted without delay. Its robust design guarantees stable operation in complex industrial environments, making it ideal for high-speed, high-precision processes like battery inspection. By providing consistent, reliable output control, the RB modules enhance system performance and contribute to safer and more efficient EV battery production.

Conclusion
Decowell’s RB Series I/O modules offer a reliable and flexible solution for modern battery manufacturing lines. By supporting a wide range of sensor types and maintaining high operational stability, they enable manufacturers to meet strict quality standards while optimizing system efficiency. This application is a strong example of how smart I/O architecture supports innovation in the growing electric vehicle industry.