What are the advantages and disadvantages of 18650 lithium battery

18650 lithium-ion battery Advantages:

1, the capacity of 18650 lithium-ion battery is generally between 1200mah~3600mah, and the general battery capacity is only about 800mah, if combined into 18650 lithium-ion battery pack, the 18650 lithium-ion battery pack can easily break through 5000mah.

2, long life 18650 lithium-ion battery life is very long, normal use of the cycle life of more than 500 times, is more than twice the ordinary battery.

3, high safety performance 18650 lithium-ion battery high safety performance, no explosion, no combustion; Non-toxic, pollution-free, through RoHS trademark certification; All kinds of safety performance in one go, the number of cycles is more than 500 times; Good high temperature resistance, 65 degrees of power down efficiency of 100%. In order to prevent short circuit of the battery, the positive and negative electrodes of the 18650 lithium-ion battery are separated. So the possibility of a short circuit has been reduced to the extreme. You can install a protection plate to prevent the battery from overcharging and overdischarging, which can also extend the service life of the battery.

4, high voltage 18650 lithium-ion battery voltage is generally 3.6V, 3.8V and 4.2V, much higher than the nickel-cadmium and nickel-metal hydride battery voltage of 1.2V.

5, no memory effect does not have to empty the remaining power before charging, easy to use.

6. Small internal resistance: the internal resistance of the polymer cell is smaller than that of the general liquid cell, and the internal resistance of the domestic polymer cell can even be less than 35m, which greatly reduces the power consumption of the battery, extends the standby time of the mobile phone, and can fully reach the level of international standards. This polymer Lithium Battery, which supports large discharge currents, is an ideal choice for remote control models and has become the most promising alternative to Ni-MH batteries.

7, can be serialized or combined to synthesize 18650 lithium-ion battery pack

8, use a wide range of laptop computers, walkie-talkies, portable DVDS, instruments, audio equipment, model aircraft, toys, cameras, digital cameras and other electronic equipment.

18650 lithium-ion battery disadvantages:

The biggest disadvantage of the 18650 lithium-ion battery is that its volume has been fixed, and it is not very well positioned when it is installed in some notebooks or some products, of course, this shortcoming can also be said to be an advantage, which is a disadvantage compared to other polymer lithium-ion batteries such as lithium-ion batteries can be customized and scalable. And related to some specific battery specifications of the product has become an advantage.

18650 lithium-ion batteries are prone to short circuit or explosion, but also related to polymer lithium-ion batteries, if relatively general batteries, this shortcoming is not so obvious.

The production of 18650 lithium-ion batteries must have a protection line to prevent the battery from being overcharged and resulting in discharge. Of course, this is necessary for lithium-ion batteries, which is also a disadvantage of lithium-ion batteries, because the materials used in lithium-ion batteries are basically lithium cobalt acid materials, and lithium-ion batteries of lithium cobalt acid materials can not be large current discharge, and the safety is poor.

18650 lithium-ion battery production conditions are high, related to the general battery production, 18650 lithium-ion battery production conditions are very high, which undoubtedly adds to the cost of production.

18650 Battery life theory for 1000 cycles of charge. Due to the large capacity per unit density, most of them are used for laptop batteries. In addition, 18650 is widely used in major electronic fields because of its excellent stability in work: Commonly used in high-grade light flashlight, portable power supply, wireless data transmission, electric heating warm clothes, shoes, portable instruments, portable lighting equipment, portable printers, industrial instruments, medical instruments and so on.