Why exploding smartphone batteries and how to avoid it
Devices / / December 19, 2019
The problem of exploding batteries of smartphones is not new and it may be faced with not only the owners of Samsung manufactured devices. In this article we will discuss the causes of this phenomenon and give advice on how to avoid it.
Batteries are one of the main components of modern electronic gadgets. In recent years, engineers have achieved a significant increase of their capacity at a constant or even smaller size. This has been achieved through the use of sophisticated technologies that provide the highest density of the battery. However, now it seems the producers have rested in a barrier to cross that can be dangerous.
From what your battery is made
Currently, lithium-ion batteries used in most electronic gadgets. They consist of electrodes, placed in a sealed housing with terminals, the current collector. Charge carrier here is positively charged lithium ion battery that is displayed in the title.
The characteristics and performance of lithium-ion batteries are largely dependent on the chemical composition of the materials used. Initially, as the negative lithium metal plate was used, and then it was used coke coal. Who is most commonly used graphite.
There are electronic components in addition to purely "chemical" filling in the battery. In the body with inserted charge controller that protects the battery from over-voltage at charging. The same components capable of monitoring battery temperature, to turn it off when overheated.
Why exploding batteries
The most dangerous element in the battery design is the electrolyte, which is extremely chemically active. If the design of the battery has a fault or a technological marriage, the battery housing can not withstand. Then the hot electrolyte gets out that, in turn, lead to inflammation of the gadget. Let's look at the main reasons why this may happen.
Overheating and overcharging
More recently, it was one of the most common reasons due to which the battery fails. Due to the current controller failure I keep going even when the battery is already charged. Occurs battery heating followed by its ignition.
It should be noted that overheating and ignition of the battery as a result of "thermal runaway" can happen very quickly, in just a few minutes. Fortunately, the condition of the battery control systems are becoming more sophisticated. If you avoid overtly cheap products, this kind of damage you hardly threatened.
Mechanical damage
Modern gadgets are becoming increasingly thin and light, so the batteries used in some Special lightweight construction, which, unfortunately, can not always provide sufficient strength. If the battery septum damage happen between the electrodes, there is a short circuit, which will lead to instantaneous heat and ignition of battery.
A thin outer shell of the battery can also be a cause of trouble. The fact is that when the battery charge is in it can occur quite a lot of pressure. If the manufacturer in the pursuit of weight reduction neglected safety rules, such a battery can also sooner or later explode.
How to avoid problems with battery
Nobody, of course, can not one hundred percent guarantee that you will not get a defective or poorly designed battery. However, the implementation of the rules listed below can significantly reduce the risk of fire or explosion of the battery in your smartphone.
- Try to avoid the low-end models and frankly unknown manufacturers. In an effort to win the price race they are trying to save literally at all, including the battery. Inconsistency actual and the declared capacity - it is far from the worst. Much worse when the battery temperature sensor is not used or the charge controller of the last century.
- Use only complete charger. In case of loss or damage, do not buy Chinese penny charge, and prefer proven product manufacturer. Pay attention at the same time to the recommended charge current for your gadget.
- If necessary, replace the search for the original battery. Yes, compatible battery can cost several times cheaper, but the savings can result in literally burn your smartphone.
- While charging the smartphone, try, so it does not overheat. Release him from the cover, pull out from under the pillow and covered with a blanket. This is especially true of new smartphones with fast charging.
- Try to protect the battery from damage. It is clear that you will not play it in football, but even banal fall to the floor can be fatal for the battery. When detecting deformation signs (swelling, warping) replace the battery with a new one.
Do you ever catch fire, or short-circuit the battery? Maybe even explode? Tell us about it in the comments.