Why does cell phone battery swell?

Introduction Why does cell phone battery swell? The reasons why the rechargeable battery swells are: 1. Bad battery protection circuit 2. The battery has no protection function and the cells expand 3. The charger has poor performance and the battery is charging

Why does cell phone battery swell?

The reasons why the rechargeable battery swells are:

1. Bad battery protection circuit

2. The battery has no protection function and the cell swells

3. Charging Poor device performance and excessive charging current cause battery expansion.

4. The battery is continually overcharged by high flow and high current.

5. the design of the battery itself can also cause this situation.

Question 1: Why does a cell phone battery expand from the middle after being used for a long time? Hello:

Lithium batteries, if used for a long time, the positive and negative lithium cannot reach the normal ratio, and the mutual repulsion of the remaining part will cause bulging.

Polymer batteries will produce liquid after too long a chemical reaction, provoregarding swelling of the battery.

Question 2: Why does the cell phone battery swell? If you don't understand the reason why the battery heats up and expands:

The power consumption of a mobile phone in standby is very low, which means that the equivalent load resistance of its battery is large, so the discharge current is very small, so the battery does not generate heat and the internal consumption of the battery is very low.

The power consumption of a mobile phone is very large when it is waiting for a call or playing a game, which means its battery has a low equivalent load resistance and discharges a large current during the functioning. Once the battery has discharged some of its power, the internal resistance increases. However, the current required for the operation of the mobile phone cannot be reduced. A considerable part of theEnergy is then consumed on the internal resistance of the battery, thus causing a loss of power. battery to heat, accelerate discharge and degrade the battery. The duration of use is quickly shortened.

The above is the reason why cell phone batteries heat up after prolonged use.

Dangers of heating the mobile phone battery:

1. Long-term heating of the mobile phone battery will cause heating of the internal parts of the mobile phone, which will cause restart or

hang up the phone during a call

2. If the cell phone battery heats up for a long time, the heat of the battery itself will increase if it is sealed. (NOKIA and the like are not sealed and the battery is directly installed) the battery will The air inside will expand violently, causing the battery to protrude, or even makeant explode the battery.

3. Prolonged heating of the mobile phone battery will accelerate the aging process of the mobile phone itself and shorten its service life.

The above is about the damage caused to cell phones by long-term heating of cell phone batteries.

Prevention and solutions to mobile phone battery heating:

1. Prevention methods:

1. When the mobile phone is at normal room temperature , it is normal that the heat does not exceed 60°C, will not damage the battery.

2. Do not use a high current charger for too long. Charging for too long will damage the battery and generate heat.

3. It is better to use original or reputable chargers.

4. If you are not in a hurry to use it, it is recommended to charge it with a stand charger (slow charging method). OK, this will not donot heat the battery.

5. If you feel that the phone is a little warm when you listen to MP3 or charge the battery, you can use *#0228# to check its temperature. If it exceeds 60℃, return to sleep mode immediately. or use another battery. If it is charging, unplug the charger immediately.

2. Solutions:

1. If the mobile phone battery is fully charged, there are also solutions. Just use your fingers to find the gap in the battery first (the back of the mobile phone battery is close to the mobile phone charging electrode and is a little soft when pressed), then pierce a small hole with a needle to let the air inside escape.

2. Buy another battery.

Question 3: Why does the cell phone battery swell when left in the phone for a long time? The batterie does not swell because it stays inside for a long time? but because the battery cells are broken. Yes, there are many reasons why charging and discharging are not trivial. If you don't wait long, it's possible, no matter what. the battery cell is broken, there is no way to save the battery. You can only replace the battery. Change the battery. I recommend the Hony battery. This brand is almost the same as the original battery.

Question 4: Why do cell phone batteries expand after prolonged use? This is because the battery cells are not good. This does not mean that all batteries will expand. after being used for a long time. All right. The battery will not swell until it reaches the end of its life. If there is a battery phenomenon, one means qone the battery is defective, and the other means the battery can no longer be used.

Question 5: What is the reason for swollen battery of Apple mobile phone?

Question 6: Why is the cell phone battery swollen, what reason? Can it still be used? Try not to use it

The theory is that the bulging battery may explode

And even if it doesn't explode, on the one hand the standby time will be shortcut and on the other hand it will It is easy to remove the back cover and the batteries on the market are not very expensive.

The battery life of a mobile phone is d 'about 500 times greater than that of a charge and a discharge.

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 significantlyreduced.

Bloating is a good sign. Some batteries simply cannot swell and explode.

It is recommended to replace the battery with a new one

The mobile phone repair guide team is at your service

Question 7: Why does cell phone battery expand and explode? . Causes of Cell Phone Battery Explosions:

Some lithium-ion cell phone batteries use liquid electrolytes. The chemical properties of lithium are very active and easy to use. Burn when the battery is charged and discharged, the inside of the battery continues to heat up and the heat generated during the activation process expands and the internal pressure of the battery increases when the pressure reaches a certain level, the outside. the shell is damaged., that is, it will rupture, causing expansion, leakage, fire or even udoes not explode. 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 (polymer lithium-ion battery (PLB for short) or plastic lithium-ion batteries (PLB for short).

2. The positive and negative electrode materials used in batteries lithium ion polymer are the same as liquid lithium ions The positive electrode materials are divided into lithium cobalt oxide, lithium manganate, ternary materials and lithium iron phosphate. battery working principle is basically the same 3. The main difference between them is the electrolyte Liquid lithium ion batteries use liquid electrolytes, while lithium ion polym batteries.era 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 cell phone battery is swollen. This is why the battery ages.

< p> Question 9: The cell phone battery is swollen. What causes batteries to swell? The reason for the bulge: A small amount of gas will be produced inside the battery during the charging process, which is usually absorbed during discharging. Too large charging current and frequent overcharging will aggravate gas production and increase the internal pressure of the battery, resulting in swelling. Slight swelling of the battery is allowed. Avoiding overload is key to reducing swelling. Of course, the quality of the batteriesies of cell phones is also very important. Many batteries on the market now are of lower quality, so it is not uncommon to see bulges. However, Punofi cell phone security battery is still good in this regard.

Hope this helps!

Question 10: Why do cell phone batteries expand from the middle after prolonged use Hello:

Lithium batteries, yes they are used for a long time? For a long time, there will be positive and negative lithium ions. If the normal ratio cannot be achieved, the remaining parts will push against each other and cause a bulge.

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

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