Why did the cell phone battery explode?

Most mobile phones now use lithium batteries. Lithium is a metal element with small size, large energy density, lively chemical properties, and no obvious memory effect, and is therefore favored.

Can cell phone batteries really explode?

I will. The part of the battery that is responsible for storing electrical energy is the core part. However, when overcharged and over-placed, it may break through the diaphragm in the core of the inferior battery, short-circuit the core, and cause high temperature and high pressure to explode. Therefore, the cell phone battery is most likely to explode during the charging process.

Under what circumstances would it explode?

In addition to charging explosions, cell phone batteries can also explode when they are not charged. The reason is that when the phone is charged, it has caused Gaodianya to reach the critical point of the battery shell. When the external temperature and pressure exceed the critical point, an explosion will occur.

Prevention before it happens: Why does the cell phone battery explode?

In simple terms, there are three main reasons why mobile phone batteries explode:

1, battery quality

At present, many mobile phone explosion accidents in China are caused by counterfeit "original batteries." Industry senior sources revealed that these fake original batteries are old battery recycling, too many raw material impurities, unqualified processes, battery safety protection related design is not in place, will cause battery explosion.

2, the core long-term overcharge

In the long-term charging state, overcharging and overcurrent will also lead to high temperature and high pressure, causing hidden dangers. Lithium batteries may be discharged instantaneously at special temperatures, humidity, and poor contact conditions, resulting in a large amount of current, spontaneous combustion or explosion.

3, battery short circuit

When the mobile phone is in a high temperature, or it is hit by impact, metal friction, etc., it may cause the battery to short circuit and explode.

How to charge correctly to prevent cell phone explosion?

1, choose the quality of the original battery

The battery will explode in the final analysis or the quality of the battery. Be sure to choose the original battery, avoid using cottage, poor quality battery. The appearance of the battery is usually covered with a layer of safety film. When the battery pressure reaches a certain peak value, the safety film releases the pressure and protects the battery from explosion. However, the cottage battery and the inferior battery may not have a safety film to protect the battery. When buying the battery, the battery must be pinched first. The internal soft or particularly hard is a fake battery. The price of expensive brand batteries and tens of dollars of cottage batteries is not just a price difference.

In addition, batteries that are hit by hard objects or have serious scratches are also best replaced. For all-in-one machines (such as the iPhone series), do not blindly charge the test machine after entering the water or water, so as not to cause a short circuit to cause the mobile phone to explode.

2, choose a good quality charger

Lithium battery charging process is generally constant current, then constant voltage, the original mobile phone charger has a full self-discharge function, in order to prevent overcharging. Cottage, poor quality charger does not have this feature.

3, pay attention to battery temperature

Keep the phone in a ventilated position when charging. Do not turn the battery down to prevent the battery from exploding due to high temperature during charging. Second, when using a mobile phone, especially when running a large mobile game, you must be moderate and do not make the phone too hot.

And don't charge your phone at low temperatures. At a low temperature below 0 degrees, the charge of the charge will be significantly lower than the normal charge, which in turn will lead to an insufficient equilibrium rate of the positive and negative reactions, resulting in excess lithium ions forming crystals that will precipitate, causing the diaphragm to be punctured and causing the battery. Short circuit causes an explosion.

Do not put the battery in a hot environment, and do not do a severe blow and squeeze, but also to avoid the battery exposed to the sun.

4, stop charging when found abnormal

If you find an abnormal cell phone during charging, power off immediately. Do not use the cell phone immediately after power off. If the battery deforms or bulges, do not use it again.

The page contains the contents of the machine translation.