As the market for consumer electronics continues to be hot, the lithium-ion battery market is growing rapidly, not only the scope and number of applications are expanding, but also the energy of single batteries is becoming higher and higher. And the safety of lithium battery has been paid more and more attention by the safety accidents of lithium batteries.

Although the lithium battery safety, international and domestic standards are put forward, such as lithium batteries transport requirements (UN38.3), specification for mobile phone battery (GB/T18287-2013), portable sealed storage battery safety requirements (IEC 62133: 2012/EN 62133: 2013), but these standards do not have mandatory (such as UN38.3 only for transportation the field of application). All along, China has been actively developing mandatory international standards for lithium battery safety requirements.

Proposed by the Ministry of industry and information technology of the Republic of China, the Institute of standardization of electronic technology of China is in charge. Released on December 2014 05, will be implemented in August 1, 2015.

Since the announcement date, safety laboratory China Electronics Standardization Institute (China Saixi laboratory safety room) began to use the new rules for the implementation of standards and certification for acceptance of portable electronic products for lithium ion batteries and battery safety certification, enterprises can submit application for certification through the ESI website.

According to GB/31241-2014 "portable electronic products for lithium ion batteries and battery safety requirements", in line with the "lithium ion battery is less than 18kg can be scheduled by the use of personnel often carry mobile electronic products use, require mandatory performance standards are required. Standard for portable electronic products including but not limited to the portable office products such as notebook computer, PDA, mobile communication products such as mobile phone, cordless phone, Bluetooth headset, walkie talkie, portable audio and video products such as portable TV, portable DVD player, MP3 player, camera, camera, recorder, and other portable electronic products such as navigator, digital photo frame, games, e-books, mobile power and so on. According to the original standard, the portable electronic products listed above do not include all the products, so the products not listed is not necessarily not within the scope of this standard ", that is to say, the future of the lithium ion battery and battery using wearable electronic products may also need to meet the requirements of the standard. The following standard original screenshot:

The promulgation of the new national mandatory standards, in addition to adopt a number of domestic and foreign battery standards (such as UL, UN, IEC) in the mature security test, the thermal abuse, external short and sags, charging and other test items were revised and improved, and the protection circuit, marking durability requirements. Especially for the battery protection circuit is also put forward the corresponding specific safety requirements and test methods, it should be said that this is at present at home and abroad for portable lithium ion batteries for a comprehensive safety standard. This also made this standard promulgated at first, which aroused great concern of the industry. The following is a standard test item:

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