Polymer lithium battery characteristics and correct charging method

There is a saying that a new battery or a new mobile phone needs to be fully used and fully charged when it is first charged. This cycle is three times, and the phone should be fully charged before unplugging. In fact, neither of the two statements is correct. Current smart phones use lithium batteries, which have no memory effect. Dissatisfaction or inactivity does not affect life and capacity. There is no such thing as a first charge to discharge the battery. Here are some states to avoid harming the battery:

1. Avoid excessive discharge. Try not to use the mobile phone below 20% of the power, especially not to use the mobile phone below 5% power, which will cause irreversible damage to the battery.

2. Avoid transitional charging. Over-discharge and over-charge will cause great damage to the lithium battery of the mobile phone. However, at present, smart phones generally have circuit protection, and will not continue to charge the battery after being fully charged.

3. Avoid using at high temperature or very low temperature. Charging at high temperature and low temperature will cause great damage to the lithium battery of the mobile phone. High temperature may cause the battery to explode, and low temperature will also have a great impact on battery life.

4. Avoid your phone battery being in a state of no power for a long time. How long it takes for the battery to be in a state of no power, it is likely that your phone will no longer be able to boot.

5. The ideal state of the lithium battery is when the power is 40% left. At this time, the voltage of the battery will not be too high or too low. The higher the power, the faster the decline, 100% of the battery is put in a month, with 50 % of the battery is put on for a month, and the capacity of the former is declining more. Do not keep the battery's power at 100% for a long time, which will affect the battery life to a certain extent.

The best maintenance method for lithium-ion batteries is to use lightly, avoid over-discharge and over-charge, and maintain the power of the mobile phone at 20%-100%. Nothing is too particular. Normal use is good.

For the new polymer battery, since the battery will automatically enter the sleep state after being placed for a period of time, the capacity of the polymer battery is very low, and the battery usage time is also shortened. In this case, it can be the polymer battery is normally charged and discharged three to five times. In this cycle, the battery can be activated and returned to normal capacity. In the charging process, the battery needs to be fully charged three times before charging. It is not necessary to perform overshoot or excessive discharge of the battery, which is about half an hour after it is charged, and overshoot and excessive discharge will have a certain influence on the battery, thereby affecting the service life of the battery.

Polymer battery charging considerations

In addition to charging the polymer battery as described above, other improper handling can also affect the life of the polymer battery, such as the use of a charger that does not match the polymer battery, thereby affecting or damaging the polymer. Battery, so, in the charging process, try to use the original charger, and the best way to charge the polymer battery is slow charging. If you want to charge it as soon as possible, repeated charging and discharging will also affect the battery life. .

When we have no power in the phone, we need to charge the battery, so first find a charger that is best used by the original mobile phone. Otherwise, it is easy to cause damage to the battery during charging due to incompatibility or other reasons. . At the same time, everyone knows that mobile phones support fast charging function, but we need to remind everyone here that if we don't have anything particularly important, then we should use slow charging when charging, so as to ensure maximum guarantee the life of the mobile phone battery.

At the same time, if our mobile phone is not used for a long time, we must first fully charge the polymer lithium battery, and when we fully charge the battery, do not put the battery on the charger, if we are long If the polymer lithium battery is not used at any time, it may cause separations between the battery and the mobile phone, thereby affecting the performance of the mobile phone.

Lithium polymer battery features

Compared to lithium-ion batteries, lithium polymer batteries have the following characteristics:

1. Relatively, the problem of battery leakage is improved, but it has not been completely improved.

2. Can be made into a thin battery: with a capacity of 3.6V250mAh, its thickness can be as thin as 0.5mm.

3. The battery can be designed in a variety of shapes.

4. A single high-voltage: liquid electrolyte battery can only be connected in series with several batteries to obtain a high voltage, and the polymer battery can be made into a multi-layer combination in a single piece to achieve a high voltage because it has no liquid itself.

5. The amount of discharge is theoretically 10% higher than that of a lithium ion battery of the same size.

Will lithium polymer batteries explode?

Polymer lithium batteries, in the event of a safety hazard, will not explode and will only bulge. In terms of safety, the outer packaging is aluminum-plastic packaging, which is different from the metal casing of liquid lithium battery. The internal quality hazard can be immediately displayed through the deformation of the outer packaging. Once a safety hazard occurs, it will not explode and only bulge.

At present, most domestic polymer batteries are only soft-packed batteries, which use aluminum plastic film as the outer casing, but the electrolyte has not changed. The battery can also be thinned, its low-temperature discharge characteristics are better than that of polymer batteries, and the material energy density is basically the same as that of liquid lithium batteries and ordinary polymer batteries, but because of the use of aluminum plastic film, it is lighter than ordinary liquid lithium. In terms of safety, when the liquid is just boiling, the aluminum plastic film of the soft pack battery will naturally bulge or rupture, and will not explode.

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