26650 lithium battery maximum capacity
Before talking about the capacity of 26650 lithium battery, there is a concept: first of all, the capacity of all lithium batteries is determined by their structure and material system, that is to say, different material systems, the same lithium battery structure and its capacity is not the same. The capacity of lithium battery is affected by the characteristics of the material itself, but also by the planning and production conditions of the core is more serious.
Different materials have different charging capacity, and according to the material processability and compaction density, it will also affect the final battery's comprehensive charging capacity. From the current situation, the battery raw material development ability is strong, the processing automation is high, the material's own electric capacity and processing characteristics are better, and the material's charging characteristics are relatively good.
So 26650 lithium battery capacity in the end how big? Let's take a look at two of the more popular domestic material systems to narrate.
1、Lithium iron phosphate material system
3.2V2500mAh The core is specially planned for high current discharge, supporting 30C discharge, instant 50C discharge, is the first choice for all kinds of starter power class.
3.2V3500mAh The capacity of this cell is now the largest capacity of 26650 lithium iron phosphate system supplied in mass production in the market (as of December 31, 2016), according to the product road plan of LILANG battery, it is expected to launch the lithium iron phosphate 26650 lithium battery with a capacity of 3800mAh in the second half of 2017.
2、Ternary (NiCoMn) material system
3.7V5000mAh This 26650 lithium battery products are now properly seasoned, the consistency of the product, the security of a very good, full-cycle test life to 1500 times in the cycle capacity persistence rate of 80% or more, classified as one of the most excellent products in China's ternary 26650 lithium battery category, has been mandatory testing of China's automotive batteries, in the domestic leading position for sure, even in the product Cycle performance and other technical objectives exceed the Japanese and Korean lithium batteries.
The 3.7V5500mAh cell is the upgraded version of the 5000mAh Li-ion battery, with capacity and various targets in the leading position in China.
Cylindrical IFR26650 lithium battery capacity including 3000mAh, 3200mAh, 3300mAh, 2500mAh, 3600mAh and other capacity segments, and this 26650 lithium battery nominal voltage are 3.2V, a single 26650 lithium iron phosphate cell fully charged voltage of 3.65V, the battery internal resistance are within 20 milliohms.
The mall ternary INR26650 lithium battery capacity is generally in 5000mAh, 5500mAh, 6000mAh is relatively more, but it is classified as a ternary system, this kind of 26650 lithium battery capacity and ternary 18650 lithium battery capacity are based on the volume to increase the energy density can be made the same.
26650 lithium battery life span
26650 lithium battery life is generally 300-500 charging cycles. Assuming that the power supplied by a complete discharge is 1Q, the lithium battery can supply or make up for a total of 300Q-500Q of power during its lifetime, if the reduction of power in each charging cycle is not considered.
26650 lithium battery charging
In conclusion, no matter how to charge, a total of 300Q-500Q of power is made up into this point is stable. Therefore, we can also understand that the life span of a lithium battery is related to the total charge power of the battery and has nothing to do with the number of charges. Deep put deep charge and shallow put shallow charge for lithium battery life of the impact is not very different. Then, some MP3 manufacturers say that certain models of MP3 using strong lithium batteries, can be charged more than 1500 times. This is purely to deceive consumers ignorant.
1, to prevent charging at too high a temperature
If in higher than the specified operating temperature, that is, 35 ° C above the environment using 26650 lithium battery, the battery power will be constantly reduced, that is, the battery power supply time will not be as long as usual. If in such a temperature, but also to charge the device, it will be more damage to the battery.
2、Prevent charging at too low a temperature
If the lithium battery is used in a low-temperature environment, i.e., below 4°C, you will also find that the use of 26650 lithium battery time is reduced, and some cell phones can not even charge the original lithium battery in the low-temperature environment.
3, often use
Life is movement. To maximize the effectiveness of the 26650 lithium battery, you need to use it often, so that the electrons in the lithium battery has been in a state of activity. If you do not often use the lithium battery, please remember to complete a monthly charge cycle to the lithium battery, do a power calibration, that is, deep discharge deep charge once.
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