How to use the battery constant temperature and humidity chamber to do the temperature cycle test of the lithium battery of portable electronic products?

Under the change of temperature, the battery of electronic products may cause liquid leakage, fire, and explosion, which will cause harm to the human body. Below, the editor of the huanyi instrument will briefly introduce the temperature cycle test of lithium batteries of electronic products.

Test equipment: lithium battery explosion-proof constant temperature and humidity test chamber

Equipment Model: Huanyi Instrument HYH Series

Pretreatment of the sample: The battery or battery pack is subjected to two charge-discharge cycles according to the specified charge-discharge procedure, and the charge-discharge procedure is put on hold for 10 minutes.

experiment procedure:

1.After the battery is fully charged according to the specified test method, place the battery in the box of a constant temperature and humidity test chamber with a temperature of 20℃± 5℃ and perform the following steps.

2. Put the sample into the experimental chamber with a temperature of 75℃±2℃ for 6 hours.

3. Afterwards, lower the temperature of the experimental chamber to -40℃ ± 2℃ and keep it for 6 h; the temperature conversion time is not more than 30 min.

4. Raise the temperature of the experimental chamber to 75℃±2℃ again, and the temperature conversion time is not more than 30 min.

5. Repeat steps 1-3 for a total of 10 cycles.

So far, after 10 cycles, the battery should not catch fire, explode, or leak.

This test method is applicable to the following electronic products:

1. Portable office products: notebook computers, PDAs, etc.

2. Mobile communication products: mobile phones, cordless phones, Bluetooth headsets, walkie-talkies, etc.

3. Portable audio/video products: portable TV sets, portable DVD players, MP3/MP4 players, cameras, video cameras, voice recorders, etc.

4. Other portable products: electronic navigators, digital photo frames, game consoles, e-books, etc.

The above is a simple explanation of the temperature cycle test of the lithium battery of electronic products using the battery constant temperature and humidity test chamber. If you have any questions, you can visit the official website of "Huanyi Instrument" to consult relevant technical personnel, or you can privately message the editor to answer it for you.