Currently, it is not uncommon to see reports about explosions and fires involving cell phones, such as devices that explode while plugged in, in a pocket, in a backpack or explosions at gas stations. Here you will know if these reports are true or false, and you will also learn about the types of batteries and their internal structure, the risks that the batteries can offer, the operation of temperature control in the batteries, the risks that you are subject to use batteries, cell phones, and pirated chargers, as well as how to take the necessary care.
The main cause of explosions
It is a fact that cell phones can explode, but mostly the main cause of explosions is batteries. The cell phones that are manufactured today have a lithium battery, as they are more environmentally friendly (their disposal is less harmful to nature), they store a much greater amount of electrical energy than other types of battery , in a smaller space, which requires much more care, because the material inside the battery is not as stable as it should be, but it has a very efficient internal security system.
Internal battery structure
To facilitate understanding, the internal structure of a battery is basically composed of two plates, one positive and the other negative, an insulating material between the plates and an electrolyte conducting medium, which must be maintained under controlled pressure and temperature. For this protection function, the batteries have a small electronic circuit, which keeps the temperature and internal pressure of the battery stable.
Because the electrolyte is extremely unstable, any event in which the electrolyte loses this stability causes an exothermic reaction to occur in the battery, which releases a large amount of heat, which can cause a fire or explosion. This electrolyte instability can be caused by a fall in the cell phone, battery exposed to high temperatures or even when the battery’s electronic protection circuit is damaged or fails.
Causes of fire and battery explosions.
Another problem that can lead to an overheating of the battery is a manufacturing defect, with impurities or any contamination on the plates or in the conductive medium of the electrolyte, short internal circuits can occur on the battery plates, causing an exothermic reaction to occur, consequently, the battery explodes or catches fire.
Rest assured, cases of manufacturing defects, in companies that value the quality of the product are extremely rare, because the internal components of the batteries undergo strict quality control.
It is important to understand that, because the battery structure is so delicate, the practice of using pirated products, such as chargers, batteries and cell phones, should be abolished and discouraged, as these pirated products do not undergo strict quality control and do not even have the necessary standards for good functioning. Pirated chargers, for example, can damage the battery’s internal protection circuit and lead to accidents.
Myth or truth?
Certainly you have already seen warnings with safety recommendations at a gas station, among them is “keep cell phones off”. If you ignore these warnings, be careful, as the combination of a flammable environment and a cell phone can be dangerous.
The biggest concern is that electromagnetic radiation serves as a trigger and induces an electric current that can cause sparks, the probability of this event occurring is low, but you should not take any chances.
Avoiding these accidents is possible with simple practices, batteries do not support high temperatures, so avoid leaving cell phones exposed to the sun or in closed places with high temperatures, such as inside a car, where the battery’s internal circuit that controls the temperature does not can do nothing.
It is important to avoid leaving cell phones that do not have water protection, in bathrooms and in damp places, as oxidation of various internal components of the cell can occur, which can also lead to internal heating of the battery. And avoid leaving the phone charging overnight or after the battery is fully charged.