Meaning
International safety standards define the testing requirements for sealed secondary cells used in portable and industrial applications. Within this regulatory framework, iec 62133 hermetic seals must undergo specific thermal and mechanical stress tests to ensure they do not leak or rupture. This standard provides a baseline for cell safety, protecting both the end device and the user from exposure to electrolyte.
Standard Requirement
The standard mandates that cells undergo temperature cycling, vibration, and drop testing before being inspected for visual signs of leakage. Cells that exhibit leaks or weight loss during these tests fail the certification process. Sourcing specialists must ensure that all cells used in their products carry this certification to satisfy regional regulatory bodies.
Supply Compliance
Cell manufacturers are responsible for obtaining and maintaining these certifications through accredited third-party test houses. Changes to the seal material or the welding process require recertification to prove that the changes have not compromised the safety of the design. This requirement ensures a high level of manufacturing consistency across different production batches.
Safety Assessment
The test focuses on preventing gross leakage that could lead to electrical short circuits or chemical burns. It does not measure the slow, long-term evaporation of electrolyte that reduces cell life. Sourcing teams use this test as a baseline safety gate rather than a performance metric.
