Polymer lithium battery and lithium battery difference

Polymer lithium-ion battery generally refers to polymer lithium-ion battery. According to the different electrolyte materials used in lithium-ion battery, lithium-ion battery is divided into liquid lithium-ion battery, polymer lithium ion battery or plastic lithium ion battery.Do you know what is the difference between a lithium polymer battery and a lithium battery?Let's take a look.

Polymer lithium battery and lithium battery difference

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

1.No battery leakage problem, the battery does not contain liquid electrolyte, the use of colloidal solid.

2.Can be made into thin battery: 3.6V400mAh capacity, its thickness can be as thin as 0.5mm.

3.Batteries can be designed in many shapes

4.Batteries can be designed in many shapes

5.Can be made into a single high voltage:  liquid electrolyte battery can only be several batteries in series to get high voltage, polymer battery.

6.Because it has no liquid, it can be made into a multi-layer combination in a single particle to achieve high voltage.

7.It will have twice the capacity of a lithium-ion battery of the same size.

Polymer lithium battery life

Correct speaking: Lithium-ion battery life is related to the number of charging cycles, not the number of charging times,

A simple understanding, for example, is that a lithium-ion battery uses only half of its charge on the first day, and then recharges it.If the next day is like this, if you use half of it, it will be charged twice in total, which counts as one charge cycle, not two.As a result, it may usually take several charges to complete a cycle.After each charging cycle, the charge decreases a little.However, the reduction is very small. High-quality batteries retain 80% of their original capacity after multiple cycles, which is why many lithium-ion products continue to function after two or three years.Of course, the life of lithium electricity to eventually need to be replaced.

Lithium-ion batteries generally have a lifespan of 300 to 500 charging cycles.Assuming that the quantity of electricity provided by a complete discharge is Q, if the quantity reduction after each charging cycle is not taken into account, a lithium battery can provide or supplement 300q-500q of electricity in its lifetime.From this, we know that if you charge with 1/2 each time, you can charge 600-1000 times;If you charge it with 1/3 each time, you can charge it 900 ~ 1500 times.Similarly, if the charging is random, the frequency is variable.Anyway, no matter how you charge it, you add 300 to 500Q of electricity and that's constant.Therefore, we can also understand that lithium-ion battery life is related to the total charge of the battery, not the number of charges.The effect of deep charging and shallow charging on lithium-ion battery life is not different.

In fact, shallow charging is more beneficial for lithium and is only necessary when the product's power module is calibrated for lithium.Therefore, the use of lithium power products do not need to rigidly adhere to the process, all to the convenience of the first, at any time to charge, do not have to worry about affecting the life.

If the lithium battery is used above the specified operating temperature, that is, above 35°C, the battery power will continue to decrease, that is, the battery power will not be as long as usual.If you have to charge the device at these temperatures, the damage to the battery will be even greater.Even if the battery is stored in a hot environment, it will inevitably cause damage to the quality of the battery.Therefore, as far as possible to maintain the appropriate operating temperature is a good way to extend the life of lithium battery. 

If you use lithium in low temperature environment, that is, below 4°C, you will also find that the battery life is reduced, and some mobile phone original lithium battery in low temperature environment even can not charge.But don't worry too much, this is just a temporary situation, unlike using it in a high temperature environment. Once the temperature rises, the molecules in the battery heat up, and they immediately return to their previous electricity,

To get the most out of a lithium-ion battery, you need to use it frequently to keep the electrons flowing.If you do not often use lithium battery, please remember to complete a charging cycle for the lithium battery every month, do a charge calibration, that is, deep charging once.