What is the difference between polymer lithium battery and lithium battery? Look at these 7 differences
Polymer lithium batteries generally refer to polymer lithium-ion batteries. According to the different electrolyte materials used in lithium-ion batteries, lithium-ion batteries are divided into liquid lithium-ion batteries and polymer lithium-ion batteries or plastic lithium-ion batteries. Do you know the difference between polymer lithium battery and lithium battery? The following Grignard battery will learn these little common sense with everyone.
Compared with lithium ion battery, the characteristics of lithium polymer battery are as follows:
1. There is no battery leakage problem. The battery does not contain liquid electrolyte and uses colloidal solids.
2. Thin battery can be made: with 3.6V400mAh capacity, its thickness can be as thin as 0.5mm.
3. The battery can be designed into a variety of shapes.
4. The battery can be bent and deformed: the polymer battery can be bent up to about 900.
5. It can be made into a single high-voltage battery: the battery with liquid electrolyte can only be connected in series with several batteries to obtain a high-voltage, polymer battery.
6. Because there is no liquid, it can be made into a multi-layer combination in a single particle to achieve high voltage.
7. The capacity will be twice as high as a lithium battery pack of the same size.
Second, polymer lithium battery life
The correct statement: life is related to the number of completions of the charging cycle, and not directly related to the number of charging cycles.
Simple understanding, for example, a lithium battery uses only half of its power on the first day, and then it is fully charged. If the situation persists the next day, that is, use half of the charge and charge it twice in total. This can only be counted as one charging cycle, not two. Therefore, it may usually take several times to complete a cycle. Every time a charging cycle is completed, the power will decrease a bit. However, the reduction is very small. High-quality batteries will still retain 80% of the original power after being charged for multiple cycles. Many lithium-powered products are still used as usual after two or three years. This is the reason. Of course, the life of the lithium battery will eventually need to be replaced.
The lifespan of lithium batteries is generally 300 to 500 charging cycles. Assuming that the power provided by a complete discharge is Q, if the reduction in power after each charging cycle is not considered, the lithium battery can provide or supplement 300Q-500Q of power in its life. From this we know that if you charge 1/2 each time, you can charge 600-1000 times; if you charge 1/3 each time, you can charge 900-1500 times. By analogy, if it is charged randomly, the number of times is variable. In short, no matter how it is charged, it is constant to add 300Q to 500Q of power. Therefore, we can also understand it this way: the life of a lithium battery is related to the total charge capacity of the battery, and has nothing to do with the number of recharges. Deep discharge and deep charge and shallow discharge and shallow charge have little difference in impact on the life of lithium batteries.
In fact, shallow charging and shallow charging are more beneficial for lithium batteries. Only when the product's power module is calibrated for lithium batteries, is it necessary to deep discharge and deep charge. Therefore, products powered by lithium batteries do not need to be constrained by the process. Everything is convenient and can be charged at any time without worrying about affecting the lifespan.
If the lithium battery is used in an environment higher than the specified operating temperature, that is, 35°C or higher, the power of the battery will continue to decrease, that is, the battery's power supply time will not be as long as usual. If you have to charge the device at such a temperature, the damage to the battery will be even greater. Even if the battery is stored in a hot environment, it will inevitably cause corresponding damage to the quality of the battery. Therefore, keeping the operating temperature as suitable as possible is a good way to extend the life of the lithium battery.
If you use the lithium battery in a low temperature environment, that is, below 4°C, you will also find that the battery life is reduced. The original lithium battery of some mobile phones cannot even be charged in a low temperature environment. But don't worry too much. This is only a temporary situation, which is different from the use in a high-temperature environment. Once the temperature rises, the molecules in the battery will be heated, and they will immediately return to the previous power.
If you want to maximize the effectiveness of a lithium-ion battery, you need to use it frequently, so that the electrons in the lithium battery are always in a flowing state. If you don't use the lithium battery often, please remember to complete a charging cycle for the lithium battery every month and do a battery calibration, that is, deep discharge and deep charge once.
Related reading about the difference between polymer lithium battery and lithium battery:
Advantages of polymer lithium battery
Shenzhen polymer lithium battery
High-rate polymer lithium battery
What is polymer battery
Polymer battery advantage
Polymerization Battery maintenance experience
Polymer battery maintenance guide
Polymer battery temperature environment
Shenzhen lithium ion polymer
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