Can the cell phone battery still be used if it is bulged?

I think many people have found that after using a mobile phone for a while, the mobile phone becomes very hot when used, and the battery of the mobile phone develops slowly. already seriously damaged. Question, can the cell phone still be used if the battery is swollen?

When the cell phone battery is swollen, it cannot be used and must be replaced with a new one. The mobile phone battery is a high-energy lithium battery. If it swells or expands, it may explode if you continue to use it. In addition, even if it does not explode, the standby time will be shortened and the back shell will be easily shortened. deformed, so you should replace it quickly to avoid accidents.

The battery life of a mobile phone is about 500 times charging and discharging. Too many times of charging and discharging, or a coExcessive charging and discharging current will cause bloating. the battery has been damaged and the standby time is significantly reduced. Bloating is a good sign, but some batteries simply cannot bloat and explode.

When charging your mobile phone, the battery charging time does not need to be too long. It can be removed when fully charged. It is best to only use the charger originally provided by the manufacturer when purchasing the phone. Battery contacts should not come into contact with metal or oily accessories, and be careful to avoid moisture. Never place batteries near low or high temperatures, such as refrigerators and stoves. If you need to replace the battery, please only use the same type of battery.

Lithium battery swelling

Question 1: If the bacell phone battery swells, will it explode? Can this be repaired? The theory is that a bulging battery is likely to explode, and even if it does not explode, on the one hand, the standby time will be shortened, and on the other hand, the back cover will be easily deformed. The batteries available on the market are not very expensive currently. The battery life of mobile phones is only about 500 times. Excessive charge and discharge times, or excessive charge and discharge current, will cause bloating. At this point, the internal structure of the battery has been damaged and the standby time is significantly reduced. Bloating is a good sign, but some batteries simply cannot bloat and explode. I suggest you replace the battery with a new one and ask: is it possible to put it in the refrigerator to keep it cold? Can it be repaired? Answer: Yes~~It’s cool~~ Remember to wrap it in plastic wrap before putting it in, wrap it in several layers and store it in the freezer for 72 hours. It seems like it can extend battery life... but it doesn't seem to be very effective~~~(*^__^*) Follow-up question: Mine can still be placed in the cell phone. ...What is the reason for the expansion? Answer: He's almost getting old. Even if it can be used, the risk factor will increase. Follow-up question: Is throwing it away the best option? Mine can just cover the back cover... If it expands a little more, I'm afraid it won't be able to cover it. Answer: Then use it until it breaks down naturally.

Question 2: The cell phone battery is overflowing. Is it going to explode? Mobile phone batteries are high-energy lithium batteries. In case of swellingnt or swelling, please do not continue to use it to avoid dangerous situations. Please replace the battery in time.

Cell phone batteries typically last one to two years before problems arise. The problems are mainly caused by improper use. When the battery leaves the factory, the quality is not up to standard and structure. is imperfect.de.

The metallic properties of lithium are intended to cause an oxidation reaction when the bulge is exposed to oxygen in the air. Oxidation will cause a risk of explosion.

In fact, when charging and discharging lithium batteries, a chemical reaction occurs. When charging, the lithium atom in the positive electrode of the lithium ion battery will lose one electron and become negative and become lithium ions. Lithium ions swim to the negative electrode throughthe alkaline solution, then are stored and discharged. Rather, a lithium ion is released and reduced to lithium atoms. It is not sustainable due to internal consumption.

There is a layer of diaphragm paper inside the battery. A good diaphragm paper can automatically close the pores when the battery temperature is too high, preventing the passage of lithium ions and preventing damage. But when the quality of the separator paper is not up to standard, it can cause damage.

Question 3: Will the expansion of lithium batteries cause an explosion? If the lithium battery is bulged, it means the compound inside has expired. It is best not to use it anymore. , and do not break the lithium battery, there is a certain degree of danger.

Question 4: The middle part of the cell phone battery board will rise up. What is happeninghe ? Will it explode if you keep charging it? For lithium batteries, if used for a long time, the positive and negative lithium ions cannot reach the normal ratio, and the remaining parts will repel each other and cause bulging.

Polymer batteries will produce liquid after chemical reaction for too long, causing the battery to swell.

The battery bulge should be damaged during the charging process, a small amount of gas will be produced inside the battery, which is usually absorbed during discharge. Too large charging current and frequent overcharging will aggravate gas production, increase the internal pressure of the battery and cause swelling. Slight swelling of the battery is allowed. Avoiding overload is key to reducing swelling. Of course, the quality of cell phone batteries isalso very important. Many batteries on the market now are of lower quality, so it is not uncommon to see bulges.

So? Use a poor quality charger!

Question 5: Will a cell phone battery explode if it swells? Will the battery that usually does not explode swell from overcharging cause chemical reactions in the environment? battery solution inside

It's not so easy to explode

At most, it won't be usable after a while

For lithium-ion batteries, there is indeed a possibility of explosion... but for lithium polymer batteries, the probability of explosion is very low.

Question 7: Why do cell phone batteries expand and explode? 1. Causes of cell phone battery explosions:

Some cell phone lithium-ion batteries use liquid electrolytes. The chemical properties of lithium Very reactive and easy to burn When the battery is charged and discharged, the internal battery. When the temperature increases, the gas generated during the activation process expands and the internal pressure of the battery increases. When the pressure reaches a certain level and the outer shell becomes scarred, it ruptures, causing it to expand, leak, or even catch fire. blast. 2. Classification of mobile phone batteries:

1. According to the different electrolytes used in lithium-ion batteries, they are divided into liquid lithium-ion batteries (liquefied lithium-ion battery, called LIB) and lithium-ion polymer batteries (batterypolymer lithium-ion batteries (PLBs for short) or plastic lithium-ion batteries (PLBs for short).

2. The positive and negative electrode materials used in polymer lithium ion batteries are the same as liquid lithium ions. Positive electrode materials are divided into lithium cobalt oxide, lithium manganate, ternary materials and lithium iron phosphate. Materials The negative electrode is made of graphite, and the working principle of the battery is basically the same.

3. The main difference between them is the electrolyte. Liquid lithium-ion batteries use liquid electrolytes, while lithium-ion polymer batteries use solid polymer electrolytes instead. This polymer can be in the “dry” state. can also be “colloidal”. Currently, most of them use polymer gel electrolytes, so most cell phones are safe.

Question 8: The beatcell phone battery will explode if not in use? It is recommended not to use the cell phone battery if it is swollen. It is best to replace it. battery, otherwise there is a risk of explosion. Simply throw it away if you no longer need it.

Question 9: Why do some people say that when the cell phone battery swells, it is not easy to explode. Once the cell phone battery swells, it cannot charge much power, and it shuts down after a while when fully charged. However, this battery is damaged, so it is best not to use it for safety.

Lithium polymer batteries can also swell. 1. Improper charging The maximum withstand voltage of lithium polymer batteries is 4.2V.

If the voltage is too high, it will destroy the internal materials and cause bloating. 2.The battery is too discharged. When the battery is discharged below 2.5V, it will also destroy the internal materials and cause flatulence.

However, mobile phone batteries have protective plates. Generally, reasons 1 and 2 will not occur because when the battery reaches these two voltages, the protection panel will automatically close and cannot be charged or discharged. Unless your protection board is broken.

3. When you charge and discharge more than 300 times, the battery life ends and it becomes flatulent.

4. The lithium polymer battery case is an aluminum-plastic composite film (three layers, the inner and outer layers are CPP, and the middle is aluminum) and is easy to break. If it breaks, air will enter and the water in the air will be electrolyzed to produce hydrogen and oxygen.