Feb 21, 2019 Pageview:629
In recent years, many mobile phone explosions have caused people to worry about the use of mobile phones. The security industry trend technology said that in fact, as long as we understand the 3 possible reasons behind the explosion, as well as 5 ways to prevent mobile phone users, we can rest assured that the use of convenient and safe mobile phone.
Trend Micro issued an official blog saying that the phone uses a lithium battery, so understanding the characteristics of the lithium battery can achieve effective prevention. Trend Micro lists the reasons why three mobile phones may explode:
First, overcharge or discharge:
The two ends of the lithium battery are positive and negative electrodes, and the middle is the electrolyte. The voltage from the electrolyte brings lithium ions from one end to the other end. This is the process of charging and discharging. This process is safe when charging and discharging normally, but overcharge or discharge causes the battery to overheat and the reaction accelerates. When the temperature continues to rise above 150 °C, the electrolyte will expand to form steam, causing the internal pressure of the battery to be too large to cause an explosion.
Second, lithium battery short circuit:
Since lithium batteries rely on electrolytes to help the ions move to conduct current, the positive and negative poles cannot be touched during the process. If you want to watch movies, you often have to survive in the wild. You can burn through the foil and the battery poles! Therefore, the positive and negative poles must avoid contact or even avoid collision. In order to prevent this, the partition between the yin and yang poles is generally placed. If the diaphragm is damaged due to external physical factors such as collision or fall, the positive and negative poles when the contacts are in contact to form a short circuit, the battery will explode.
Third, the protection circuit chip failure:
The battery itself contains a chip to protect the circuit, especially now that it acts as a circuit. The protection mechanism is even more important. It is reasonable to say that the chip circuit can avoid overcharging and battery failure by turning off the battery. When the battery loop of the charger and the battery fails, even without the protection of the wafer loop, it is easy to explode due to overcharging or short circuit.
After understanding the cause of the explosion of lithium batteries, Trend Micro offers 5 ways to teach mobile phone users to prevent.
1, the wafer loop is very important. Therefore, if you use the original charger and charging cable as much as possible, it will be the most secure on the wafer loop, so it is not easy to cause instability and failure of the battery due to wrong voltage or current.
2, when charging, let the phone have a clean environment, remove the phone case, avoid other items on the top, bottom, left and right of the phone, and pay special attention to avoid nearby flammable materials.
3, you should avoid dropping your phone or soaking water, which may cause abnormal phone circuit.
4, try not to charge in an environment where the temperature is too high or too low, reducing the influence of external environmental factors.
5, the most important thing is to pay attention to the charge at all times. If you find that the temperature is too high, stop charging immediately.
The page contains the contents of the machine translation.
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