What are the indicators for lithium-ion battery safety testing

1. Squeeze test: Put the fully charged battery on a flat surface, apply a pressure of 13±1KN by a hydraulic cylinder, and squeeze the battery from the flat surface of a steel rod with a diameter of 32mm. Once the squeeze pressure reaches the maximum stop Squeeze, the battery does not catch fire, just don't explode. 2. Impact test: After the battery is fully charged, place it on a flat surface, place a steel column with a diameter of 15.8mm vertically in the center of the battery, and drop a 9.1kg weight freely from a height of 610mm onto the steel column above the battery. The battery does not catch fire or explode. 3. Overcharge test: Fully charge the battery with 1C, and perform an overcharge test according to 3C overcharge 10V. When the battery is overcharged, the voltage rises to a certain voltage and stabilizes for a period of time. The battery voltage rises rapidly when it is close to the time. When it reaches a certain limit, the top cap of the battery is pulled off, the voltage drops to 0V, and the battery does not catch fire or explode. 4. Short-circuit test: After the battery is fully charged, the positive and negative electrodes of the battery are short-circuited with a wire with a resistance of no more than 50m, and the surface temperature of the battery is tested. The maximum temperature of the battery surface is 140°C. The battery cap is opened, and the battery does not catch fire or explode. . 5. Acupuncture test: Place the fully charged battery on a flat surface, and pierce the battery in the radial direction with a steel needle with a diameter of 3mm. The test battery does not fire or explode. 6. Temperature cycle test: The temperature cycle test of lithium ion battery is used to simulate the safety of lithium ion battery when it is repeatedly exposed to low temperature and high temperature environment during transportation or storage. The test is to use rapid and extreme temperature Changes are made. After the test, the sample should not fire, explode, or leak. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Why is the drone battery expensive?