Battery weight impact tester (1m)

Battery Impact Test Machine

ZH-WI-60C

1. Introduction.

The test sample battery should be placed on a flat surface. A rod with a diameter of 15.8mm is placed crosswise at the center of the sample. A 9.1KG weight fell from a height of 610mm onto the sample. Each sample battery only needs to withstand one impact, and different samples should be used for each test. By testing the safety performance of the battery with different weights and force areas at different heights, and conducting tests according to regulations, the battery should not ignite or explode.

2. Conforms to the standard

2.1. GB 31241-2014 "Safety requirements for lithium-ion batteries and battery packs for portable electronic products"

Standard requirements:

After the battery is fully charged according to the specified test method, place the battery on the surface of the platform, place the metal bar with a diameter of 15.8mm ± 0.2mm transversely on the upper surface of the Centroid of the battery, and use a weight of 9.1kg ± 0.1kg to hit the battery surface with the metal bar in Free fall from a height of 610mm ± 25mm, and observe for 6h. When conducting impact tests on cylindrical batteries, it is required to ensure that their longitudinal axis is parallel to the surface of the heavy object, and that the metal rod is perpendicular to the longitudinal axis of the battery. For square batteries and flexible packaging batteries, impact tests are only conducted on wide surfaces. When conducting impact tests on button batteries, the metal rod is crossed over the center of the battery surface. One sample is only subjected to one impact test.

Acceptance criteria: The battery should not ignite or explode.

2.2. SJ/T 11169-1998 (UL1642:1995) "Safety Standard for Household and Commercial Batteries".

Standard requirements:

A. Place the test sample battery on a flat surface, one φ A 7.9mm (5/16 inch) rod is placed crosswise at the center of the sample. A 9.1kg (20 pounds) weight fell from a height of 610mm (2 feet) onto the sample.

B. Cylindrical or prismatic shapes should have their longitudinal axis parallel to the plane and perpendicular to the center of the horizontal specimen, so that the longitudinal axis of a φ7.9mm (5/16 inch) curved body is subjected to impact. The prismatic battery needs to be rotated 90 degrees around its longitudinal axis to be placed so that both its wide and narrow sides can be impacted. Each sample battery only needs to withstand one impact. Use different samples for each experiment.

C. Coin or button type batteries should have the surface of the test sample parallel to the plane. And make the φ 7.9mm (5/16 inch) curved body lies horizontally at the center of the battery.

Acceptance criteria: The sample should not explode or catch fire. 

2.3. GB/T 18287-2013 "General Specification for Lithium Ion Batteries for Cellular Phones"

Standard requirements:

Place the battery on a flat surface and a φ 15.8mm ± 0.2mm steel column is placed at the center of the battery, with its longitudinal axis parallel to the plane, allowing a weight of 9.1kg ± 0.1kg to freely fall from a height of 610mm ± 25mm onto the steel column above the center of the battery. After testing, observe for 6 hours. When the battery is subjected to impact testing, its longitudinal axis is parallel to the plane and perpendicular to the longitudinal axis of the steel column. Each battery can only undergo one impact test;

Acceptance criteria: The sample should not explode or catch fire. 

2.4. UN 38.3 "Recommendations for the Transport of Dangerous Goods - Manual of Tests and Standards", Part 3, Section 38.3

Standard requirements:

A. Place the sample battery or battery pack on a flat surface. One φ15.8mm rod is placed horizontally at the center of the specimen. A 9.1 kgs hammer fell from a height of 610 ± 25mm onto the specimen. The longitudinal axis of the cylindrical or prismatic battery to be impacted should be parallel to the flat surface and perpendicular to the longitudinal axis of the φ15.8mm curved surface placed horizontally at the center of the specimen.

B. The prismatic battery must also be rotated 90 ° around its longitudinal axis to withstand impact on both its wide and narrow sides. Each specimen is subjected to only one impact. Different specimens are used for each impact.

C. When a coin shaped or button shaped battery is subjected to impact, the plane of the sample should be parallel to the flat surface and the curved surface of the φ15.8mm rod should be placed horizontally at its center.

Acceptance criteria: If the external temperature of the battery and its components does not exceed 170 ℃ and there is no disassembly or combustion within 6 hours after conducting this test, it meets this requirement.

2.5. UL 1642 "Lithium Battery Standard" 2054 "Household and Commercial Battery Sets"

2.6. QB/T 2502-2000 "General Specification for Lithium Ion Batteries

2.7. GB/T 8897.4-2008 (IEC 60086-4:2007) Primary battery Part 4 Safety Requirements for Lithium Batteries

2.8. GB/T 21966-2008 (IEC 62281:2004) Safety Requirements for Lithium Primary battery and Storage Battery in Transport

Standard requirements:

Place the tested individual or unit battery on a flat plate, and place a steel rod with a diameter of 15.8mm horizontally in the center of the sample, so that a 9.1kg weight falls from a height of 61cm ± 2.5cm onto this steel rod. When a cylindrical or rectangular battery is subjected to heavy impact, its longitudinal axis should be parallel to the flat plate and perpendicular to the longitudinal axis of the steel rod placed in the center of the sample. The rectangular battery should also rotate 90 degrees around its longitudinal axis to ensure that both its wide and narrow sides are subjected to heavy impact. When a button type battery is subjected to heavy impact, its flat surface should be parallel to the flat plate, and the steel rod should be placed horizontally at the center of the battery. Each tested individual battery or unit battery is only subjected to one heavy impact. Continue to observe the tested sample for 6 hours.

Acceptance criteria: The battery should not overheat, explode, or catch fire during inspection and within a 6-hour observation period.

3. Specification.

3.1. Falling ball weight: 9.1 kg ± 0.1 kg (optional: 10 kg)

3.2. Impact height: 0 ~ 1000mm adjustable

3.3. Height display: Displayed through the controller, accurate to 1mm

3.4. Height error: ±5mm

3.5. Impact mode: Raise the falling ball to a certain height and release it, allowing it to fall freely in the vertical direction, no tilting or shaking

3.6. Display method: PLC touch screen display parameter values

3.7. Cross bar diameter: φ15.8 ± 0.2mm (5/8 inch) steel rod (vertically placed horizontally in the middle of the battery, heavy objects falling on the steel rod, and the steel rod kept parallel to the bottom surface of the square battery);

3.8. Inner material: Stainless steel plate with a thickness of 1.2mm, with 1/3 of the area covered with iron fluorine melt adhesive tape, resistant to high temperatures, corrosion resistant insulation and easy to clean;

3.9. External material: Cold rolled sheet with paint treatment, thickness 1.5mm

3.10. Exhaust vent: Located on the back of the box, φ150mm, external diameter exhaust duct, convenient for external laboratory connection, high power exhaust fan

3.11. Chamber door: Single door double layer door, tempered glass observation window, cold pull handle door lock, box door with silicone foam tightening strip

3.12. Pressure relief explosion-proof device: There is a pressure relief and explosion relief port on the back of the box. When the pressure inside the box increases sharply due to abnormal working conditions, or when the structural battery short circuit explodes, resulting in excessive pressure inside the box, the pressure relief port is automatically opened to alleviate destructive pressure inside the box and reduce the impact of pressure on the box door. The pressure relief port is easy to open and restore, and the sealing connection is good;

3.13. Chamber door: Threshold switch, unable to test when the test box door is open;

3.14. Viewing window: 50 X 200mm (20mm thick tempered explosion-proof glass);

3.15. Inner test space: W 600 x  D 500 x  H 1200mm；

3.16. Upper and lower impact surfaces: Stainless steel plate;

3.17. Lifting method: Electric lifting

3.18. External size: W750 * D800 * H1800mm appr.

3.19. Power supply: AC220V 50Hz 1ph 700W

3.20. Machine weight: 250kgs appr.

3.21. Function optional to purchase: 1) Battery voltage and temperature data acquisition system; 2) Manual and Automatic fire suppression functions.