Lithium ion battery safety testing indexes of what are the requirements?

Source: 2020 - 04 - 01 hits: 3 times what is lithium ion battery safety testing indexes of lithium ion battery production come out later, need to go through a series of tests to get to the customer, in order to ensure the safety of the battery, reduce potential safety risks. 1. Knead for check: will be fully charged battery on a flat surface, from the oil cylinder on 13 & plusmn; 1 kn kneading force. The battery from 32 mm diameter steel plane for kneading. 2. Influence check: after a full charge, the steel column diameter of 15. 8 mm plane, the diameter of the steel column 15. 8 mm center batteries, 9. The weight of 1 kg from a height of 610 mm steel column above the battery. The battery will not fire, and not burst. 3, overload test: the battery in a full charge 1 c, according to the 3 c overload imitating experiment was carried out 10 v, when the battery voltage of the voltage must be stable for a period of time, will moment near the battery voltage rise rapidly rises to a certain limit, top hat the battery, voltage drop to 0 v, the battery without fire, blasting. 4, short circuit check: in the battery will use a full battery resistance is not more than 50 m Ω wire is negative short circuit, check the surface temperature of the battery, the battery the maximum surface temperature of 140 ℃, batteries, and battery no fire, no explosion. 5. Acupuncture check: will be fully charged battery in the plane, with a diameter of 3 mm steel radial puncture battery. Check whether the battery is on fire, with or without tank. 6. Temperature cycle test: by the lithium ion battery temperature cycling test, simulation of lithium ion battery in the process of transporting or storing repeatedly exposed to the safety of the low temperature environment. Test using agile methods of temperature and extreme temperature. After the test, the sample should not be on fire, no explosion, no leakage.