Will the laptop battery explode if it swells?
Are swelling lithium-ion batteries dangerous?
The question of whether lithium-ion battery swelling is dangerous has attracted much attention. Once the swelling of lithium-ion batteries occurs, it may cause serious safety hazards. So, is lithium-ion battery swelling dangerous?
Causes of Lithium-ion Battery Swelling
Gas may be produced during the chemical reaction inside the battery, causing the internal pressure of the battery to increase, thus causing expansion.
In addition, excessively high battery temperature during use is also one of the important reasons for expansion. High temperature will accelerate the chemical reaction rate inside the battery, intensify gas generation, and thus intensify expansion.
Factors such as battery aging, excessive charging and discharging, and external physical damage may also contribute to battery expansion.
Will a swollen laptop battery explode?
When the battery expands internally, it may cause the battery shell to deform or even rupture, resulting in serious consequences such as battery short circuit and leakage. Therefore, the expansion of lithium-ion batteries does pose a certain risk.
The dangers that may be caused by the expansion of lithium-ion batteries are not only the damage to the battery itself, but more importantly, it may cause serious safety accidents such as fire.
Once a lithium-ion battery expands during charging or use, it may cause high temperatures inside the battery, causing the battery to catch fire or even explode.
It should be noted that if the outer shell of the lithium battery is not damaged and the pressure relief valve is working normally, the battery will bulge but will not explode. Only when there is a serious short circuit inside the battery or a large amount of electrolyte vaporizes, breaking the battery shell or the pressure relief valve, will an explosion and combustion occur.
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How to Identify a Swollen Laptop Battery
First, we can judge whether the laptop battery is bulging by appearance. A normal battery shell should be flat, without obvious bulges or expansion. Once the battery shell is found to be bulging or deformed, it is likely that the battery has bulged. At this time, you should stop using the battery immediately and seek help from professionals.
Secondly, you can also preliminarily judge whether the battery is bulging by touching the battery shell. If you feel a noticeable swelling or abnormal changes in hardness, the battery is likely to have a bulging problem.
In addition, the temperature of the battery surface can also be used to determine whether the battery is bulging. Under normal circumstances, the battery will generate a certain degree of heat during use, but if the battery is bulging, it may cause the battery temperature to rise abnormally.
Therefore, timely observation of the battery’s heating conditions can also help in identifying swollen batteries.
How to safely remove a swollen battery
If you suspect your battery is swollen, do not charge your device. Run the battery down as far as possible to reduce the risk of fire.
If the battery starts to burn or leak, you need a safe place to store it. Perform battery replacement operations on a non-flammable surface, or outdoors in a cool, dry place.
Do not use water under any circumstances as lithium will react with water and cause a fire. If you are working indoors, make sure you have access to a location where the battery can react safely (if a leak occurs).
Once you’ve taken the precautions above, you can begin removing the battery. In most cases, you can follow the battery replacement guide for your device, but you should still take special care to avoid damaging the battery during removal.
How to prevent laptop battery swelling
First of all, to avoid laptop battery swelling, we need to pay attention to avoid overcharging and discharging. Frequent overcharging and discharging will cause chemical reactions inside the battery, which will accelerate the risk of battery aging and swelling.
Therefore, it is crucial to use the battery reasonably and avoid long-term high-load use or long-term unused use.
Secondly, keeping the battery ventilated and cool is also an effective way to prevent expansion . Overheating is one of the main causes of battery expansion .
Therefore, when using a laptop computer, you should maintain good ventilation and avoid using it in a high temperature environment for a long time, especially in hot summer weather, you should be extra careful.
In addition, regular maintenance and inspection of laptop batteries is also the key to preventing expansion. Regularly cleaning the battery contact points to ensure good contact can effectively reduce the battery aging rate and reduce the risk of expansion.
At the same time, regularly check the battery appearance for abnormal expansion. If any problem is found, replace the battery in time to avoid more serious consequences.
If you want to learn more about replacing your battery, please visit BatteryMall.com/blogs/support