Certifié IEC62133

Since the lithium battery is a kind of secondary rechargeable battery, and has the advantages of small size, easy to carry, large energy storage capacity, long service life, low self-discharge rate, etc., gradually

Become the mainstream of current battery products.

The reasons for the explosion of lithium batteries are as follows:

1. Long-term overcharge of the battery: In the long-term charging state, overcharge and overcurrent will also lead to high temperature and high pressure, causing hidden dangers. Lithium battery under special temperature, humidity and poor contact conditions

A large amount of current may be generated by instantaneous discharge, and spontaneous combustion or explosion may occur.

2. Battery short circuit: When the mobile phone is in a high temperature state, or is subjected to impact, metal friction, etc., it may cause a battery short circuit and explode.

3. Charging causes the battery to explode: Playing with the phone while charging will lead to longer charging time. Long-term charging will cause the temperature of the phone to rise, making it more likely to explode.

fry.

4. The charger does not match the battery: Generally, the mobile phone has the original charger. The wrong type of charger can easily cause battery accidents. Apple phones only accept original chargers for charging, which is very

To a large extent, the probability of battery self-explosion is reduced.

5. Excessive temperature: Excessive temperature means that the internal heat of the battery has reached the limit. Long-term charging, high temperature irradiation, and baking will easily cause the battery temperature to be too high. In southern my country, the general

Families will use electric ovens in winter. Many people like to play with mobile phones on the side of the electric oven, which is also very dangerous and can easily induce battery explosion.

6. Thermal runaway: The reason why lithium-ion batteries are at risk of explosion is due to a process called "thermal runaway" in the reaction inside the battery. "Thermal runaway" is an energy positive

Feedback loop process: Elevated temperature causes the system to get hotter, which in turn causes the system to get hotter. The above reasons such as battery short circuit, ambient temperature

Too high, frequent overcharge, unauthorized modification of the casing, etc., will cause thermal runaway of lithium-ion batteries, which may eventually cause fire or explosion.

02What is IEC62133 standard?

IEC/EN62133 certification is a testing standard for batteries.

 In March 2013, CENELEC, the European Committee for Electrotechnical Standardization, officially released the EN 62133: 2013 version of the battery safety standard. This standard is mainly for alkaline or non-

Safety requirements for single cells and batteries with acid electrolytes and portable sealed cells and batteries, the new standard will replace the version EN62133 published in 2003:

2003. At the same time, the European Committee for Electrotechnical Standardization also specified the expiration date of the old EN 62133 standard.

revoke. Betatest laboratory reminds major battery manufacturers and battery product manufacturers to import the new version of EN 62133: 2013 as soon as possible to avoid future battery products exported to Europe.

to influence.

This time, EN 62133: 2013 version, like the previous version, refers to the standard of the International Electrotechnical Commission (IEC). From the standard content, EN 62133: 2013 is equivalent to

IEC 62133: 2012 edition. The new version of the standard has major changes in content and technology compared to the old version. The following are the main differences in the content of the old and new versions of IEC62133

IEC/EN62133 test content?

Detailed inquiry

Vibration test

High temperature shock test

temperature cycle test

Short circuit test

Free drop test

Cell extrusion

forced discharge

transport test

heat abuse test and more