1 introduction of testing standards for lithium battery testing equipment

At present, the widely used international standard is the testing standard of lithium battery testing equipment of International Electrotechnical Commission (IEC). According to their respective needs, the International Air Transport Association (IATA), the United Nations Committee of experts on the transport of dangerous goods and the International Civil Aviation Organization (ICAO) have also formulated relevant safety standards for lithium-ion battery transport, which have been widely used. In addition, some countries and organizations, such as UL, IEEE and JIS, also have a wide influence on the safety standards of lithium-ion batteries. The test items of these standards are similar, but the test conditions are different.

There are four international standards which are widely used and affected. United Nations Manual of transport tests and standards for dangerous goods (UN38.3)

Both IEC 62281:2012 and IEC 62281:2012 "safety of lithium primary batteries and batteries and lithium storage batteries and batteries in transportation" focus on the safety test and safety requirements of lithium-ion batteries in transportation, and mainly simulate the external environment and mechanical vibration of lithium-ion batteries in transportation. The test items include height simulation, temperature test, vibration, impact, external short circuit, impact and overcharge During the test process, the battery should ensure that the package does not fall off, does not deform, does not lose quality, does not leak liquid, does not discharge, does not short circuit, does not break, does not explode and does not catch fire. Ul1642:2009 "lithium batteries" is applicable to primary (non rechargeable) and secondary (rechargeable) lithium batteries used as power supply in products. The purpose of the standard is to reduce the risk of fire or explosion of lithium batteries in use. The electric performance test of battery in the standard includes short circuit test, abnormal charging test and forced discharge test; mechanical test includes extrusion test, impact test, impact test and vibration test; environmental test includes heat abuse test, temperature cycle test, high altitude simulation test and projectile test. According to the test requirements, the tested battery shall be free from fire, explosion, leakage, exhaust and combustion, and the package shall not be broken during the test. Ieee1625:2008 "standard for rechargeable batteries for notebook computers" and ieee1725:2006 "standard for rechargeable batteries for mobile phones" mainly establish a unified standard for the design, production and development of batteries for portable computers and cellular phones, mainly involving the electronics, physical structure, chemical composition, processing flow, quality control and packaging technology related to batteries and battery packs Field. Compared with other battery standards, which generally pay attention to batteries or battery packs, the above standards comprehensively consider battery cells, batteries, host nodes, power accessories, consumers and environment. These two standards are focused on the design and manufacturing process, and the use of batteries in the later period, especially the safety issues are not involved much.