Research Progress: Does a non-flammable electrolyte mean high battery safety?
Research Progress: Does a non-flammable electrolyte mean high battery safety?,
battery safety,
▍BSMI Introduction Introduction of BSMI certification
BSMI is short for Bureau of Standards, Metrology and Inspection, established in 1930 and called National Metrology Bureau at that time. It is the supreme inspection organization in Republic of China in charge of the work on national standards, metrology and product inspection etc. The inspection standards of electrical appliances in Taiwan are enacted by BSMI. Products are authorized to use BSMI marking on the conditions that they are in compliance with safety requirements, EMC testing and other related tests.
Electrical appliances and electronic products are tested according to the following three schemes: type-approved (T), registration of product certification(R) and declaration of conformity (D).
▍What is the standard of BSMI?
On 20 November 2013, it is announced by BSMI that from 1st, May 2014, 3C secondary lithium cell/battery, secondary lithium power bank and 3C battery charger are not permitted to access to Taiwan market until they are inspected and qualified according to the relevant standards (as shown in table below).
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Product Category for Test |
3C Secondary Lithium Battery with single cell or pack ( button shape excluded) |
3C Secondary Lithium Power Bank |
3C Battery Charger |
Remarks: CNS 15364 1999 version is valid to 30 April 2014. Cell, battery and Mobile only conduct capacity test by CNS14857-2 (2002 version).
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Test Standard |
CNS 15364 (1999 version) CNS 15364 (2002 version ) CNS 14587-2 (2002 version)
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CNS 15364 (1999 version) CNS 15364 (2002 version ) CNS 14336-1 (1999 version） CNS 13438 (1995 version) CNS 14857-2 (2002 version)
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CNS 14336-1 (1999 version) CNS 134408 (1993 version) CNS 13438 (1995 version)
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Inspection Model |
RPC Model II and Model III |
RPC Model II and Model III |
RPC Model II and Model III |
▍Why MCM?
● In 2014, rechargeable lithium battery became mandatory in Taiwan, and MCM began to provide the latest information about BSMI certification and the testing service for global clients, especially those from mainland China.
● High Rate of Pass: MCM has already help clients to obtained more than 1,000 BSMI certificates till now in one go.
● Bundled services: MCM helps clients successfully enter multiple markets in worldwide through one-stop bundled service of simple procedure.
On December 20th, the American Consumer Product Safety Committee (CPSC) posted an article on its website calling on manufacturers of electric scooters, balance scooters, electric bicycles and electric unicycles to audit their products to ensure they meet established voluntary safety standards, or they may face enforcement action.The CPSC sent statement letters to more than 2,000 manufacturers and importers stating that failing to comply with applicable UL safety standards (ANSI/CAN/UL 2272 – Standard for Personal Electric Vehicle Electrical Systems, and ANSI/CAN/UL 2849 – Standard for Electric Bicycle Electrical Systems Safety, and their referenced standards) could pose a risk of fire, serious injury or death to consumers; and that product compliance with relevant UL standards can significantly reduce the risk of injury or death caused by fire in micro-mobility devices.From January 1, 2021 to November 28, 2022, the CPSC received reports of at least 208 minivan fires or overheating incidents from 39 states, resulting in at least 19 deaths.The UL safety standard was developed to reduce the risk of dangerous fires in battery-powered miniature mobile products.” The letter further calls on manufacturers to demonstrate compliance with the standard through certification by an accredited testing laboratory.
