Polymer lithium battery and lithium battery What is the difference?

The current polymer lithium batteries and lithium batteries are different about the following:

      1. Appearance: As long as the aluminum foil package flexible packaging, probably claiming to be lithium polymer battery. Polymer batteries because there is no metal shell, the advantage is thin. However, the disadvantage is no metal shell protection, vulnerable to external damage.mobile power plant

       2. Safety: As the polymer battery using flexible packaging, and the amount of liquid electrolyte less, if unfortunately the battery problems, the battery will expand, so that poor adhesion between the battery plates and cause the circuit. And if the situation is more serious, the seams will crack and release pressure, there is less danger of explosion fire. The metal shell encapsulated lithium battery although there may be pressure relief port design, but when the pressure or temperature is too high, the risk of explosion fire will be higher.

      (Polymer battery can only say that the design of the mechanism makes it less likely to explode, but in fact the chemical properties can be said to be almost the same, really want to engage in the same small one is also very scary to burn up

     3. Cycle life: Early Ericsson polymer batteries, batteries often see a few months after the apparent expansion, the performance is also an instantaneous decline. As technology advances, the current high-quality polymer battery life also improved a lot, but still inferior to the same level of polymer lithium battery.

     4. Price: In the production technology and cost, the polymer battery is higher than the lithium battery.

       Lithium polymer battery life

       Correct argument: lithium battery life and the number of completion of the charge cycle, and the number of charging is not directly related.

Simple to understand, for example, a piece of lithium on the first day only half of the electricity, and then it is fully charged. If the next day is the case, that is, with half charge, a total of two charge down, this can only be counted as a charge cycle, not two. Therefore, it usually takes several charge cycles to complete one cycle. Each completed a charge cycle, the power will be reduced a little. However, the reduction is very small, high-quality battery after many cycles, still retains 80% of the original power, many lithium-powered products after two or three years still in use, is the reason. Of course, the final lithium battery life needs to be replaced.

Lithium battery life is generally 300 to 500 charge cycles. Assuming that a complete discharge provides a quantity of Q, the lithium battery can provide or supplement 300Q-500Q of electricity for its lifetime, if the charge is not taken into account after each charge cycle. From this we know that if every time you charge with 1/2, you can charge 600-1000 times, if every time you use 1/3, you can charge 900 ~ 1500 times. And so on, if randomly charged, the number of uncertain. In short, no matter how filling, a total of 300 ~ 500Q added to the power of this point is constant. So, we can also understand: lithium battery life and the total charge of the battery charge, and has nothing to do with the number of charges. Deep and deep charge and shallow charge Charge for the impact of lithium life is not much difference.

In fact, superficial charge is more beneficial to lithium battery, only when the product's power module is calibrated for lithium battery, it is necessary to deepen the charge. Therefore, the use of lithium-powered products do not have to rigidly adhere to the process, all for the convenience of the first, always charge, do not have to worry about affecting life expectancy.

Lithium polymer battery

If lithium is used in an environment above the specified operating temperature of 35 ° C or above, the battery's capacity will continue to decrease, ie, the battery's power supply will not be as long as usual. If at this temperature, but also for the device, it will damage the battery more. Even storing the battery in a hotter environment can inevitably cause damage to the battery's quality. Therefore, try to maintain the appropriate operating temperature is to extend the life of lithium a good way.

If you use lithium in a low temperature environment, that is, below 4 ° C, you will also find that the battery life is reduced, and some mobile phone's original lithium battery even in the low temperature environment can not even power. But do not worry too much about this. It's just a temporary condition. Unlike the use of high-temperature environments, once the temperature rises, the molecules in the battery heat up and immediately return to their previous level.

To play the maximum efficiency of lithium-ion battery, you need to use it often, so that the electronics within the lithium battery is always in a state of flow. If you do not often use lithium, be sure to remember to complete a lithium battery per month charging cycle, make a power calibration, deep deep charge once.

The above is a small series to introduce you to the polymer lithium battery and lithium battery difference, hoping to help you.