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ChinaManufacturing2023 – ongoing

CATL

AI inspection of battery seal-pin welds at Liyang

CATL reported 100% defect detection in seal-pin welding at its Liyang plant

WorkingCompany's own claimOfficial ↗

Problem

Battery manufacturing required consistent quality and precise inspection of seal-pin welds. CATL also used helium-leak testing in its inspection process.

Approach

CATL developed a quality-inspection model using a high-precision 3D camera, AI and edge computing. The system operated in the seal-pin welding process at its Liyang plant. CATL said the deployment eliminated helium-leak testing for that process.

Results

100%defect detection in seal-pin welding, according to CATLCompany's own claim[1]

Takeaway

A targeted vision system replaced a separate test in one manufacturing step. The reported detection rate applies to seal-pin welding.

Categories

Business function
Production and quality
Innovation type
Process innovation
AI technology
Computer vision
Evidence
Company's own claim

Sources

Source summaries

[1]CATL14 Dec 2023

CATL described manufacturing systems operating at its Liyang plant. Its AI-assisted weld inspection reportedly detected 100% of seal-pin welding defects and removed the helium-leak testing step.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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