The reasons of polymer lithium battery bulge

The analysis found that the battery bulge occurred in certain circumstances. There is no relationship between bulge and usage.

Polymer lithium battery often used in MP3, smart tablet, along with the progress of the battery technology, the battery is in use process will ballooning this phenomenon is less and less, basically a probabilistic problem, but a man have a battery of drum phenomenon, started to factory feedback, manufacturers should say playing improper operation using the battery is broken.

I this is an old small intelligent console, bought in 2014 for the holiday, there are a few months and useless, nor do the battery maintenance at ordinary times, two days before how cannot open the airport charge electricity, groped apart when found the battery bulge.

The polymer lithium battery send to bulge bag, is that!

As an ordinary battery, research it is in the normal thing, however, followed the secret study, combined with previous experience, very well is to understand the analysis of the battery of drum is proposed.

One, the first is to determine the battery core is broken or the battery protection board is broken.

The battery 1, get a friend to find the multimeter test voltage, as the chart shows, 0.0872 V, the book is the battery to zero.

Lithium polymer battery ChiFa ballooning package, is that! This is voltage that is not a bad protection board of the batteries is broken, so I will separate the batteries and the protection plate.

2, Separate test battery protection board, to see whether there are abnormal.

Polymer lithium battery send ballooning package. From above all the parameters of the normal battery PCB, now is almost certainly wrong with batteries.

3, disconnect batteries battery internal structure.

Polymer lithium battery send ballooning package, is that!

You can find the lithium battery core inside the suction phenomenon, slightly negative black patches on the copper foil front slightly off powder, but the positive plate and diaphragm paper are normal, which means the battery ballooning mainly for sheet caused by suction. Gather the compound battery is more used now on smart phones and intelligent robot, if the battery will lead to abnormal machine drum.

Is the author of the battery remind you:

1, end products, also should consider when designing product bloating rate around 0.1% of the battery, the battery charge and discharge cycle after will have a certain ratio of ballooning, but does not affect the use, will not affect the product performance and safety, more not bulge.

2, battery manufacturers must strictly control the moisture, control flow process and the baking time and temperature.

3, users find battery must stop using, after sending drum photo or video reserves, otherwise the product could not dead.

Can tell the people around, to buy things to make a copy, the product is bad to take evidence, some bad products, always like to fool the people, or people didn't pay, or even down a few years, many communications industry for no reason, have eaten kui of the battery, you don't fall for it.

The page contains the contents of the machine translation.