The application of the Xindashida Zhongweixing CR6220 industrial robot in fully automated OCV testing in the lithium-ion battery industry.
2025-07-25
The application of the Xindashida Zhongweixing CR6220 industrial robot in fully automated OCV testing in the lithium-ion battery industry.
Project Background
With the explosive growth of the new-energy vehicle and energy-storage industries, global demand for lithium batteries continues to soar. By 2030, lithium-battery shipments are expected to approach 5 TWh, with a compound annual growth rate of 25.6%.3 As the core unit of lithium batteries, the performance consistency of battery cells directly affects the reliability of battery modules and complete battery packs. OCV testing is a critical step in the extreme testing process for screening consistent battery cells.
In the multi-unit Xindash CR6220 OCV production line, thanks to its flexible hardware configuration and ultra-fast speed, fully automated inspection is achieved for different workstations.
Customer needs
• Traditional processes rely on multiple standalone devices, making debugging complex and increasing labor and time costs.
• Due to the special distribution of current collectors in pouch cells, conventional testing equipment tends to cause current collector slippage or poor electrical contact, necessitating custom fixtures and imposing high spatial requirements.
• Traditional OCV+IR testing takes 600 ms to 1 second per test, making it unable to meet the demands of high-speed production lines.
Xinshida Solution
Proposal Description
Two CR6220 robots—one is responsible for loading cells, performing automated testing of battery IV characteristics, open-circuit voltage, internal resistance, temperature, barcode scanning, terminal shaping, and automatic cell output; the other robot handles cell unloading, sorts good products into trays, and picks out defective ones.
Scheme advantages
• Fast speed—while comparable imported brands achieve 30 ppm, Zhongweixing robots can reach a cycle rate of 35 ppm.
• Fully automated robot calibration significantly shortens the debugging cycle and reduces debugging costs.
• Visual + robotic packaging solution: With Zhongweixing, a single person can handle both visual debugging and robot debugging, reducing overall debugging costs and equipment expenses.
• Highly modular design offers versatile and customizable flexibility. The spline’s starting stroke has been reduced by 36–43 mm, and the base has been redesigned into a cylindrical shape, enhancing overall rigidity and consistency.
• We have mastered high-performance vibration suppression motion control algorithms, control hardware, software platforms, servo drives, and mechanical body technologies, placing us at the forefront of the domestic industry.
Scheme Composition
The project is equipped with two sets of Xindashida Zhongweixing CR series CR6220 controllers.
Associated products
There is no relevant data for the time being; please add it in the backend!
Project Results
The core rationale behind the fully automated OCV testing project lies in the lithium battery industry’s growing demand for high-consistency cells. The industry’s key pain points center on stability, cost, efficiency, and real-time performance. New Shida Robotics focuses on integration, intelligence, and dynamic monitoring, leveraging technological innovation to break through traditional testing bottlenecks.
