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2025

Cylindrical Lithium Battery

Q&A: How to do hermeticity test and burst test for cylindrical lithium batteries? A clear article

This article introduces the two core tests of cylindrical lithium battery: air tightness test and burst test. The airtightness test accurately detects whether the battery seal is leaking through minimally invasive drilling, professional fixture system, pressure application and monitoring, etc. The burst test monitors the pressure resistance limit and rupture mode of the shell by slowly and uniformly increasing the pressure. With the advantages of integrated airtightness + bursting, one machine with multiple molds, high pressure capability, and accurate and stable results, Precision Tech's solution is suitable for the R&D and mass production of automotive-grade and power storage batteries.

IPXX Protection Rating Chart_Cover

How much kPa is measured by IP protection level and how to set the parameters of the air tightness tester?

This paper introduces the method of setting airtightness test parameters for IP66 to IP69 protection classes, including test pressure, instrument recommendation, test duration, etc. It also describes the method of defining test parameters and the four phases of establishing enterprise IP airtightness test standards, emphasizing that parameter settings need to be based on data-based decision-making and continuous optimization.

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