The new EN62133 standard for lithium batteries will come into effect on March 14, 2020
"Lithium battery" is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Now lithium batteries have become an irreplaceable product in life. In order to regulate lithium batteries, corresponding standards have been issued. Let's take a look at the EN62133 standard for lithium batteries.
In order to further reduce safety risks, the European Committee for Electrotechnical Standardization issued two new standards, EN 62133-1:2017 and EN 62133-2:2017 (with IEC 62133-1:2017 and IEC 62133-2: 2017 is the equivalent standard), which are safety standards for rechargeable nickel-based batteries and rechargeable lithium-based batteries used in portable products, which will replace the original EN 62133:2013 standard (equivalent to IEC 62133:2012). EN 62133-1:2017 and EN 62133-2:2017 will be enforced in Europe on March 14, 2020, and the old version of EN 62133:2013 will not be accepted.
The version change is coming soon, what are the precautions that companies should know?
There is a big difference in testing between the old and new standards, and battery manufacturers need to update their product designs in time to meet the requirements of the new standards.
Among them, in the nickel battery section, EN 62133-1:2017 is compared with the original standard. The difference between the two is reflected in the update of the main test, such as the heat abuse test time from 10 minutes to 30 minutes.
For the lithium battery part, EN 62133-2:2017 has been updated mainly in the following aspects:
1. High and low temperature charging pretreatment: the upper and lower limit voltage and temperature are adjusted according to the manufacturer's definition.
2. The ambient temperature of the external short circuit test of the battery cell and the battery pack is changed.
3. The external short circuit test of the battery pack adds a single failure requirement.
4. Add optional metal drop surface for drop test.
5. The heat abuse test time was changed from 10 minutes to 30 minutes.
6. In the extrusion test, delete 10% deformation and stop the test judgment.
7. Overcharge test voltage adjustment.
8. The forced discharge test increases the voltage requirement.
9. Add mechanical tests (vibration and shock), remove transportation test requirements, etc.
