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Heavy impact test

Partial certification program

Heavy impact test requirements

UN38.3 certification

Impact (for cylindrical batteries with a diameter of not less than 18 mm)
Place the cell or polymer cell for the test sample on a flat, smooth surface
After placing a crossbar of 15.8 mm in diameter across the middle of the cell, an object of mass 9.1 kg was dropped from the height of 61 ± 2.5 cm toward the sample.
For specimens subjected to impact, the longitudinal axis should be parallel to the flat surface and perpendicular to the longitudinal axis of the curved surface 15.8 ± 0.1 mm across the center of the specimen. Each sample was subjected to only one impact.
Result: The maximum surface temperature of the cell or battery does not exceed 170 °C. Within 6 hours after the end of the test, the cell and the polymer cell should be free from disintegration and no ignition.

UL certification

The battery was tested at an ambient temperature of 20 ° C ± 5 ° C. The test sample was placed on a flat surface. A strip of 15.8 mm ± 0.1 mm diameter was placed in the center of the sample. An object weighing 9.1 Kg ± 0.46 Kg dropped from the height of 610 mm ± 25 mm and hit the battery.
The cylindrical or prismatic battery was subjected to a weight impact test under its longitudinal axis parallel to the plane and vertically across a cast strip having a diameter of 15.8 mm. The prismatic battery is rotated 90° about its longitudinal axis so that both its wide and narrow sides are impacted. Each sample cell is squeezed in only one direction. A separate sample is used for each test. The button battery was subjected to a weight impact test in parallel with a transversely placed 15.8 mm diameter cast strip and allowed to stand for 6 h.
Result: No fire, no explosion.

CQC certification

The battery was placed on the surface of the platform, and a metal rod with a diameter of 15.8 mm ± 0.2 mm was placed on the upper surface of the geometric center of the battery, and a weight of 9.1 kg ± 0.1 kg was used to impact from a height of 610 mm ± 25 mm. The surface of the battery with metal bars was observed for 6 h.
In the impact test of a cylindrical battery, the longitudinal axis is parallel to the surface of the weight, the metal rod is perpendicular to the longitudinal axis of the battery, the square battery and the flexible packaging battery are only subjected to the impact test on the wide surface, and the metal battery is used in the impact test of the button battery. Across the center of the battery surface. Only one impact test was performed on one sample.
Result: No fire, no explosion.

CB certification

The battery sample was placed on a flat surface and a 15.8 mm diameter cast strip was placed in the center of the sample. An object weighing 9.1 Kg was dropped from the height of 610 mm ± 25 mm to the battery and allowed to stand for 6 h.
Result: No fire, no explosion.


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