October 18, 2024
18650 lithium-ion batteries are generally divided into capacity type and multiplier type, capacity type is important to reflect the large capacity, but the discharge current is generally lower than 1C, the current is small; multiplier type can be a large current discharge, but the capacity is lower, the use of time is not long. 18650 lithium-ion battery price is directly proportional to the size of the capacity, the larger the capacity, the larger the energy ratio, the more raw materials are used, so the price will be more expensive.
Advantages of 18650 lithium-ion battery
1, large capacity, 18650 lithium-ion battery capacity is generally between 1200mah ~ 3600mah, while the general battery capacity of only 800mah or so, if the combination of 18650 lithium-ion battery packs, the 18650 lithium-ion battery packs can break through the 5000mah at any time.
2, long life, 18650 lithium-ion battery has a long service life, normal use of the cycle life of up to 500 times or more, is more than twice the ordinary battery.
3, high safety performance, 18650 lithium-ion battery safety performance is high, no explosion, no combustion; non-toxic, non-polluting, certified by the RoHS trademark; a variety of safety features in one fell swoop, the number of cycles is greater than 500 times; high temperature performance is good, 65 degrees under the conditions of the discharge efficiency of 100%.
4, high voltage, 18650 lithium-ion battery voltage are generally 3.6V, 3.8V and 4.2V, much higher than the nickel-cadmium and nickel-metal hydride batteries 1.2V voltage.
5, no memory effect, no need to empty the remaining power before charging, easy to use.
6, small internal resistance, the internal resistance of polymer battery cell is smaller than the general liquid battery cell, the internal resistance of domestic polymer battery cell can even be achieved below 35m, which greatly reduces the self-consumption of the battery.
The same capacity of 18650 lithium-ion battery cell brand is also a factor that affects the price, in general, the imported brands than the same type of national brand price is high, said earlier, to determine the capacity of 18650 lithium-ion batteries and important factors in the structure of the raw materials, and thus from the positive pole, the use of lithium cobalt, lithium manganese and ternary materials, lithium iron phosphate prices will be different.
