A detailed explanation of the forced internal short circuit test of lithium ion cell,
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▍SIRIM Certification

For the security of person and property, Malaysia government establishes product certification scheme and puts surveillance on electronic appliances, information & multimedia and construction materials. Controlled products can be exported to Malaysia only after obtaining product certification certificate and labeling. 

▍SIRIM QAS

SIRIM QAS, a wholly-owned subsidiary of the Malaysian Institute of Industry Standards, is the only designated certification unit of the Malaysian national regulatory agencies (KDPNHEP, SKMM, etc.).

The secondary battery certification is designated by KDPNHEP (Malaysian Ministry of Domestic Trade and Consumer Affairs) as the sole certification authority. Currently, manufacturers, importers and traders can apply for certification to SIRIM QAS and apply for the testing and certification of secondary batteries under the licensed certification mode.

▍SIRIM Certification- Secondary Battery

Secondary battery is currently subject to voluntary certification but it is going to be in the scope of mandatory certification soon. The exact mandatory date is subject to the official Malaysian announcement time.  SIRIM QAS has already started accepting certification requests.

Secondary battery certification Standard : MS IEC 62133:2017 or IEC 62133:2012

▍Why MCM?

● Established a good technical exchange and information exchange channel with SIRIM QAS who assigned a specialist to handle with MCM projects and inquiries only and to share the latest precisely information of this area.

● SIRIM QAS recognizes MCM testing data so that samples can be tested in MCM instead of delivering to Malaysia.

● To provide one-stop service for Malaysian certification of batteries, adapters and mobile phones.

Test Purpose: to simulate the short circuit of the positive and negative electrodes, scrap particle and other impurities that may enter the cell during the manufacturing process. In 2004, a laptop battery produced by a Japanese company caught fire. After detailed analysis of the cause of the battery fire, it is believed that the lithium ion battery was mixed with very small metal particles during the production process, and the battery was used due to temperature changes. Or various impacts, metal particles pierce the separator between the positive and negative electrodes, causing a short circuit inside the battery, causing a large amount of heat to cause the battery to catch fire. Since the mixing of metal particles in the production process is an accident, it is difficult to completely prevent this from happening. Therefore, an attempt is made to simulate the internal short circuit caused by the metal particles piercing the diaphragm through the “forced internal short circuit test”. If the lithium ion battery can ensure that no fire occurs during the test, it can effectively ensure that even if the battery is mixed in the production process Test object: cell (except the cell of non-liquid electrolytic liquid system). Destructive experiments show that the use of solid lithium ion batteries has a high safety performance. After destructive experiments such as nail penetration, heating (200℃), short circuit and overcharge (600%), liquid electrolyte lithium-ion batteries will leak and explode. In addition to the slight increase in internal temperature (<20°C), the solid-state battery does not have any other safety issues