Power Battery Quality Inspection-Suzhou Oi-Smart Technology Co., LTD

Power Battery Quality Inspection

Industry Challenges and Needs

Due to the uniqueness of power batteries, quality issues such as battery swelling, leakage, and fire can lead to exceptionally severe consequences. Therefore, the expansion and upgrading of the industry, along with the application of new materials and new technologies, mean that the manufacturing process of power batteries requires more refined and stringent quality control. Now, 3D vision inspection technology can be introduced at various stages of product manufacturing, helping enterprises accurately identify minor defects, improve inspection efficiency, and product yield.

Solution

Leveraging the high-performance GTS series 3D laser profiling distance meters, combined with advanced image processing algorithms and measurement and inspection algorithms provided by Oi-Smart Vision, high-quality 3D point cloud images are obtained. Coupled with 2D vision inspection, it meets the fast-paced, high-precision demands for defect detection and precise measurement in different stages of lithium battery production, including presence/absence detection, various defect detections, critical dimensions, flatness, thickness measurements, etc., providing tangible assurance for product quality control.

Measurement Details

Electrode Assembly Section

Battery cell top cover weld inspection：Detects defects such as burst points, protrusions, broken welds, pinholes, offsets, and flanging.

Battery cell blue film surface defect inspection：Identifies concave and convex defects like bubbles, scratches, wrinkles, and foreign objects.

Flatness and height difference inspection of battery cell cover plate's positive and negative poles：Measures the flatness and parallelism of the battery cover plate's poles and the height difference from the poles to the bottom surface.

Post-weld inspection of battery cell sealing nails：Fits a free-form surface for the weld path height map, calculates the height difference between the center of the sealing nail and the top cover surface, and checks for defects like reverse nails, warping nails, pinholes, and burst points.

Module Assembly Section

Square battery cell module measurement：Measures the 3D dimensions, surface flatness, corner flatness, module thickness, mounting hole height, and hole spacing of the battery module.

Cylindrical battery cell module measurement：Checks for the presence of the cell, electrode orientation, surface flatness, etc.

Point Cloud Image

PLAN COMPOSITIONPLAN COMPOSITION

GTS Series 3D Laser Profiler

OI-SMART VISION Universal Software Platform

Maximum scanning frequency of 47KHz;

Provides 2048 data points per profile;

Z-axis repeatability accuracy up to 0.1µm;

IP67 protection rating.

Thousands of operators at your disposal;

Simple operations for quick workflow setup;

Supports customization of specialized software based on the platform.

Lithium Battery

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