Do you know what the optimal storage capacity is for Polymer lithium-ion batteries? In today’s society, electricity has become an essential energy in human life, our daily life, travel, office, and so on, all need the support of electricity. Well, let’s not talk about home appliances, office appliances, let’s talk about mobile phones, laptops, and other digital products, have become a necessity in people’s lives.
One of the most intolerable things in life is when your cell phone or laptop suddenly runs out of power. Mobile phones, laptops, and other digital products are using polymer lithium batteries, so now more and more people are worried about the improper use of batteries and reduce its life. In fact, in order to maximize the performance of Polymer lithium-ion batteries, to extend their life, we need to master the correct charging method. But what is the optimal storage capacity for Polymer lithium-ion batteries when not in use?
How much capacity is the best storage for lithium-ion polymer batteries?
In fact, lithium polymer batteries are not afraid of charging but afraid of not having electricity. Many li-ion battery manufacturers have “charge management IC” for their batteries, so that when the batteries are charged, they will not exceed the safe voltage and explode, nor will they fail to have electricity, the voltage is too low to start the charging process. When polymer li-ion battery is out of charge, it is likely to be put for a long time without charge because the voltage is too low, resulting in premature battery obsolescence. If you do not use polymer lithium batteries for a long time, it is best to retain 40% of the power.
The factors that determine the capacity of this polymer lithium battery
First, Polymer Lithium batteries are a type of lithium-ion battery, the lithium-ion battery itself in self-discharge, if no electricity will lead to over-discharge of the battery, so that the chemical activation of lithium-ion purity, reduce the recovery capacity.
Second, if the lithium-ion battery is kept at 100% capacity, it poses a risk during transportation or storage, since lithium ions are most active at full capacity and pose the greatest safety risks.
Third, polymer batteries are usually shipped with 30%-50% of the electricity, to ensure that its storage time of more than a year, voltage is still above 3.2 v, recovery capacity of more than 98%.
Suitable storage temperature of lithium polymer battery
1. The battery will be recharged and formation after the injection is completed. We call this formation and the temperature of reactivation is 45 ± 5 °C.
2. After it has been formed and left to rest for some time, it will be tested for capacity, that is, for charging the battery. The specified temperature for the volumetric test is 35 ± 5 °C.
3. The storage temperature of the battery is 25 ± 5 °c, the temperature will affect the activity of lithium-Ion polymer batteries, the higher temperature is, the higher activity is, but the temperature above 60 °c may cause irreversible damage to the membrane inside the battery, which caused the battery to die. If the temperature is too low, the lithium-ion battery activity will be too low, resulting in the battery capacity can not be released, that is, the power is out. This is why, in winter in the north, a fully charged cell phone in the house can not be used outside. But as long as this is returned to normal temperature will be recovered, the impact on the battery is not very large. When the battery is used at 35 °c, the capacity is relatively high, and when the temperature rises again, the impact on the capacity is relatively small. However, when the temperature exceeds 60 °C, the battery may be damaged, thus affecting the battery life. So that if your temperature higher than 60°C, you need to use high-temperature lithium polymer batteries. Too low a temperature will lead to a lower capacity, that is, part of the electricity did not come out.
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