What Is a Cell Phone Battery?

Mobile phone batteries are energy storage tools that provide power to mobile phones. They are composed of three parts: batteries, protection circuits and casings. Lithium batteries and nickel-metal hydride batteries are commonly used for mobile phone batteries.

cell phone battery

Regarding the "activation" of lithium batteries, many sayings are: the charging time must exceed 12 hours, and three full charge and discharge cycles are repeated to activate the battery. The saying "the first three charges take more than 12 hours to charge" is for the rechargeable batteries of the 1990s.

One: Recharge the phone after it runs out of power

Affected by the use of nickel-metal hydride batteries, many people still like to fully charge the mobile phone battery before charging. For lithium batteries, this does not prevent the memory effect, and the lithium element lacks activity when it is used up and then recharged, which will affect the battery capacity for a long time.

2: The mobile phone battery should be fully charged (or vented) when not used for a long time

Many people have multiple mobile phones or batteries in their homes. Some batteries will be left unused for a long time. Many people use two extreme methods-fully charged or discharged. In fact, these two methods will affect the life of the phone. The correct method is to charge the phone to 40 ~ 60% and store it in a cool and dry place.

3: The first charge takes more than 12 hours

Most mobile phones in 2013 used lithium batteries. Unlike previous nickel-metal hydride batteries, lithium batteries do not have a memory effect (correctly, the memory effect is very weak). There is no activation. Long-term charging will cause a certain amount of battery damage. damage. So how much is the time to charge for the first time? It depends on the capacity of the battery. Generally speaking, in 2 to 4 hours, it is enough to charge the phone for another half an hour after the charging is completed.

Four: Overcharging will cause the battery to explode

Lithium batteries generally have safety protection circuits and a variety of safety devices to ensure that the battery circuit is automatically cut off during excessive charge and discharge and short circuits; excessive pressure inside the battery will trigger decompression of the exhaust device; excessive battery temperature will trigger heat Melt the protection device to stop the electrochemical reaction of the battery. Therefore, unless there is a quality problem, the battery will not explode because it is charged for a long time. However, if you do not unplug the power supply after the battery is fully charged, the battery will remain fully charged. Although it will not explode, it will accelerate the loss of battery capacity. In addition, there are rumors that picking up a phone while it is charging can cause an explosion. Lu Jianguo said that this statement is untenable. If there is such a danger, the product will set up a program that does not connect to the phone when charging. However, from a health point of view, the cable will limit the user's range of motion. Taking a call while charging may keep the user in a place for a long time, causing excessive muscle tension. Therefore, it is best to unplug the power and then talk. Do not cover anything on the battery while charging, and do not put it on the bed to avoid fire.

Five: Use "universal charger"

Many people like to use "universal chargers" and think that universal chargers are cheap and convenient. However, this charger is not produced by the original factory, and its charging current is not suitable for all battery models. Moreover, the charger itself is of low quality, causing many explosions .

Six: "Heating" for mobile phones in the sun

Many older mobile phones show lower battery power in winter than in other seasons. This is because the cold reduces the chemical reaction activity in the battery. Therefore, many people like to leave the mobile phone in the sun or "heat" by the heater. . This approach is also wrong, once the battery is overheated, it will easily lead to explosion.

Seven: The mobile phone battery can be recharged in the "freezing" of the refrigerator freezer for three days

There are rumors on the Internet that the old battery of the mobile phone can be restored to a part of the power for three days if it is frozen in the refrigerator, and many netizens have tried to see the consequences. In fact, this approach is also not advisable. The humidity in the freezer of the refrigerator is high, and once the mobile phone battery is wet, it is extremely dangerous during use. Experts said: "The battery of the mobile phone is not used for a period of time, and the power will be partially restored when it is used again. Freezing in the refrigerator will damage the internal structure of the battery. Although it will show a short-term power increase, it will lose its effect after repeated use , And it seriously affects battery life. ".

Eight: The battery can no longer be used after reaching the limit of charging times

Manufacturers generally mark the number of times the battery is used in the mobile phone manual, while consumers calculate the battery life based on the number of times. In fact, the battery life depends on various factors such as use, storage, and charging, and there is no fixed value.

Nine: Do not pay attention to battery cleaning

Among mobile phone users, few people pay attention to the cleanliness of the battery. In fact, occasionally wiping the metal contact surface of the battery with an eraser can remove rusty substances on the metal surface, which helps to charge the battery and extend the battery life.

Ten: Mobile phone = Game console

Some young people like gaming mobile phones. Where to go with a mobile phone, gaming phones generally have high chip performance and poor heat dissipation performance. Prolonged use will cause the body and battery to overheat and explode.

Eleven: The battery is full, but the phone will power off automatically after a while

In such cases, most of the batteries are abnormally charged, and it is normal to use universal charging for eight hours before using them.

Twelve: The battery is out of charge, and the battery cannot be charged after the phone is automatically turned off.

This is because the power in the battery is completely used. It is also necessary to use universal charging for a while and then use direct charging after the battery is charged.

Try to use original battery

There are currently three technologies to determine the remaining battery charge of a mobile phone.

1. The battery charge time does not need to be too long, it can be removed when it is fully charged.

2. It is best to use only the charger originally provided by the manufacturer when purchasing the machine.

3. The contacts of the battery should not be in contact with metal or oily accessories. Pay attention to moisture resistance.

4. Do not immerse the battery in water or throw it into fire.

5. Do not place batteries near low or high temperature objects, such as refrigerators and stoves.

6. When handling batteries, use special facilities.

7. If you need to change the battery, use only the same type of battery.

8. Battery life is calculated according to the charge and discharge cycle

China's mobile phone battery industry started around 1999. Since 2008, the rapid growth of China's mobile communications industry, especially the explosive growth of the mobile phone market, has caused mobile phone batteries to receive more and more general attention from all parties in the industry. With the update of technology, mobile phone batteries in 2013 also diversified, and can be divided into built-in batteries and external batteries. The built-in battery is directly attached when the mobile phone is bought, and the external battery is the latest one to be sold in recent years. It refers to a battery that can be directly configured outside the mobile phone during use. Mobile power has become popular in 2012.

Cell phone battery output value

As of the end of March 2008, there were more than 574 million mobile phone users across the country, an increase of 27.348 million from the end of 2007. Such a huge mobile phone terminal market has resulted in a large use of mobile phone batteries. Calculated based on an average mobile phone equipped with 2 batteries. As of the end of March 2008, mobile phone users across the country needed 1.148 billion batteries; based on the average lithium-ion battery ex-factory price of 30.25 yuan, at the end of March 2008, China s mobile phone battery output value exceeded 34.727 billion RMB market capacity. As of January 2010, China s mobile phone battery output value exceeded 51.219 billion yuan.

Major manufacturers of mobile phone batteries

The distribution and production capacity of China's major mobile phone battery manufacturers are relatively concentrated. South China mainly includes BYD Shenzhen, Shenzhen Lehehe, Shenzhen BAK, Shenzhen Xinwanda, Shenzhen Bangkai, Huizhou TCL, Huizhou Desai Energy, etc., and North China mainly includes Tianjin. Lishen, Qingdao Aokema, Harbin Coslight, Henan Huanyu, Henan Hongbin Battery, etc. East China mainly includes Fujian Scud, Xiamen Powerlong, Shanghai Panshi, etc. There are more than 30 large-scale mobile phone battery manufacturers, occupying China's mobile phone batteries Most of the industry's production capacity, in addition, other small manual workshops are even more numerous.