There may be two reasons for battery bulging, one is the problem of battery manufacturing level, the electrode coating is uneven, and the production process is relatively rough; the other is the problem of overcharge and overdischarge during use. These two factors will cause the battery to undergo a violent reaction similar to a short circuit inside the battery during use, generating a large amount of heat, which will cause the electrolyte to decompose and vaporize, and the battery will swell.
If you have more than one battery, it should be that the cut-off voltage of the charger you are using does not match the battery, it is recommended to replace it.
In addition, the battery will bulge if it is not used for a long time, because the air is conductive to a certain extent, so if it is left for a long time, it is equivalent to the positive and negative electrodes of the battery directly contacting, and a chronic short circuit occurs.
If the spare battery is not used for a long time, it is recommended not to charge it with electricity. It is best to retain about 60% of the power-in addition, use it after a period of time, this will be beneficial to the battery life
Poor battery quality and long charging time. Do not continue to use the battery charging drum. Replace it with a new one as soon as possible.
Different batteries cannot be mixed. Be sure to pay attention later, and keep the battery full when the battery is not in use, otherwise the battery life will be gone after 1-2 months.
Mobile phone batteries are high-energy lithium batteries. Bumps and swellings occur, please do not continue to use it to avoid dangerous situations. At this time, please replace the battery in time!
The battery life of the mobile phone is generally one to two years. After that, problems will occur. The problems are mainly caused by improper use. When the battery leaves the factory, the quality is not sufficient and the structure is not perfect.
The metallic properties of lithium are destined to undergo an oxidation reaction when the bulge is exposed to oxygen in the air, which will oxidize and cause an explosion hazard.
In fact, a chemical reaction occurs during the charging and discharging of a lithium battery. During charging, the lithium atom of the positive electrode loses an electron when it is charged, and becomes negative to become lithium ions. Lithium ions swim to the negative electrode through the alkaline solution, and then are stored and discharged. Otherwise, a lithium ion is released and reduced to a lithium atom. Not durable because of internal wear and tear.
There is a layer of separator paper inside the battery. Good separator paper can actively close the pores when the temperature of the battery is too high, so that lithium ions cannot pass through and prevent injuries. But when the quality of the separator paper is not enough, it will cause harm.
This situation generally occurs in the user's mobile phone with removable batteries. Many users prefer to buy cheap non-original batteries. Such battery vendors will cut corners in order to maximize the profit. Such batteries If the protection circuit is not safe, it will cause the battery to expand. For lithium-ion batteries, the battery will expand to a certain limit and it will cause an explosion. It is very dangerous. Please choose a battery that matches the original manufacturer. , But it is safe to know that life is more expensive than everything.
Usually chargers cause battery problems. In most cases, users do n’t pay much attention to the choice of their mobile phone chargers. They often charge a charger when they can use it. These chargers are likely to be cheap chargers bought in irregular places. Without safe protective circuit devices, the charging current is generally relatively large. Occasionally, the charging problem is not very large, but it is very difficult to charge for a long time. There may be accidents of battery expansion.
Some users like to charge while watching the phone, so that the phone runs in a high temperature environment for a long time. Continuous charging will cause side reactions in the electrolyte inside. If this operation is performed for a long time, it will seriously affect the life of our battery. It is easy to appear the problem of swelling. If our mobile phone is not used for a long time, the battery installed in the mobile phone will also swell. This is the long-term storage of the battery, which gradually reduces the voltage to less than 2V, so that internal chemical reactions will occur, which will cause the lithium battery of the mobile phone to become drummed. This is the reason many users usually find when disassembling their old phones. Therefore, if you want to store the battery for a long time, the most reliable method is to periodically charge the battery to a half-charge state, which can extend its service life.
once the problem of cell phone battery bulging occurs, we must immediately stop using it. For our own safety, according to the model of your cell phone, buy a safe power supply that matches the cell phone. Remember: always take good care of your cell phone, do not play while charging. . Under normal use, if battery bulging occurs, please go to the network 315 platform to complain, there will be a dedicated staff to deal with this situation, these are all bad business, driven by the interests of illegal behavior.