How Many Years Do Lithium Polymer Batteries Last?

Most current lithium polymer batteries use an aluminium-plastic film for the casing, and when using an organic electrolyte inside, the battery will not explode even if the liquid temperature is high, because the aluminium-plastic film lithium polymer batteries are in a solid or gelatinous state, and there is no leakage of the liquid, which will only rupture naturally. But nothing is absolute, if the instantaneous current is large enough to cause a short circuit, then spontaneous combustion or explosion of the battery will not be impossible, mobile phones and tablet PCs safety accidents are mostly caused by this. I don't know how many years the life expectancy of lithium polymer batteries is, so let's take a look at this article about lithium polymer batteries today.

Firstly, will lithium polymer batteries explode?

Most of the current polymer batteries use aluminium-plastic film as the shell, when using organic electrolyte inside, even if the liquid temperature is high, it will not explode, because the aluminium-plastic film polymer batteries use a solid or gelatinous state, there is no leakage, it will only rupture naturally. But nothing is absolute, if the instantaneous current is large enough to cause a short circuit, then spontaneous combustion or explosion of the battery will not be impossible, mobile phones and tablet computers safety accidents caused by this.

Second, the service life of lithium polymer batteries.

Simple description, lithium battery life is related to the completion of the charging cycle, and the number of charging is not directly related. Each time a charging cycle is completed, the power will be slightly reduced. However, the decrease is very small, high-quality batteries can still maintain 80% of the original charge after many recharges, and many lithium products can still maintain normal use after two to three years of use for this reason. Of course lithium batteries still need to be replaced at the *end* of their life. Usually about 5 years. For example, a simple understanding of LiPo is that it only consumes half of its charge on the first day, and then fills it up again. If you do the same the next day, i.e. charge it with half the charge, and charge it twice in total, this only counts as one charging cycle, not two. So it usually takes several charges before a cycle is completed. Each time a charging cycle is completed, the charge level decreases slightly. However, the drop is small, and high quality batteries can still maintain 80% of their original charge after multiple recharges, and many lithium-ion products remain functional after two to three years of use for this reason. Of course, lithium batteries will eventually have to be replaced over their lifetime.

If the battery is properly maintained, most lithium polymer batteries have a life span of three years, with a maximum of six years.

Compared to traditional lithium-ion batteries, lithium-polymer batteries can effectively improve battery leakage, and they are so thin that they can be designed into a variety of shapes, and can output 10% more power than lithium-ion batteries in the same size. Lithium-ion batteries are used because lithium is chemically active and reacts easily. But also because of its chemical nature is very active, the battery is very easy to explode after charging, there is a certain degree of safety risks, lithium polymer batteries with magnesium alloy as the electrode, polymer as the anode, with organic solvents as the electrolyte, the use of the cycle is about 300 times up and down.

Third lithium polymer batteries have advantages.

1, the battery has no leakage problem, there is no liquid electrolyte inside the battery, using gel-like solid.

2, can be made into a thin battery: capacity of 3.6V400mAh, its thickness can be up to 0.5mm.

3, the battery can be designed into a variety of shapes.

4, Battery bending deformation: the maximum value of polymer battery bending deformation is 90 degrees.

5, can be made into a single high-voltage battery: liquid electrolyte batteries and several batteries in series, can only get high pressure; polymer batteries because of its own does not contain liquid, can be formed in a single battery inside the multi-layer combination to achieve high pressure.