UL 1642 added a test requirement for solid state cells,
UL 1642,

▍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.

Following last month’s addition of heavy impact for pouch cell, this month UL 1642 proposed to add a test requirement for solid state lithium cells.At present, most solid state batteries are based on lithium-sulfur batteries. Lithium-sulfur battery has high specific capacity (1672mAh/g) and energy density (2600Wh/kg), which is 5 times that of traditional lithium-ion battery. Therefore, solid state battery is one of the hot-spot of lithium battery. However, the significant changes in the volume of sulfur cathode during the process of delithium/lithium, the dendrite problem of lithium anode and the lack of conductivity of solid electrolyte have hindered the commercialization of sulfur cathode. So for years, researchers have been working on improving the electrolyte and interface of solid state battery.UL 1642 adds this recommendation with the goal of effectively solving the problems caused by the solid battery (and cell) characteristics and potential risks when in usage. After all, cells containing sulphide electrolytes may release the toxic gas like hydrogen sulphide under some extreme conditions. Therefore, in addition to some routine tests, we also need to measure toxic gas concentration after the tests. Specific test items include: capacity measurement, short circuit, abnormal charge, forced discharge, shock, crush, impact, vibration, heating, temperature cycle, low pressure, combustion jet, and measurement of toxic emissions.
The standard GB/T 35590, which covers portable power source, is not included into 3C certification. The main reason may be that GB/T 35590 pays more attention to the performance of the portable power source rather than safety, and the safety requirements are mostly referred to GB 4943.1. While 3C certification is more about ensuring product safety, therefore GB 4943.1 is chosen as the certification standard for portable power source.