The advantages and disadvantages of 18650 lithium-ion power battery and its application are briefly described

The 18650 lithium-ion battery is one of the lithium-ion batteries and the first lithium-ion battery. 18650 pack builder 18650 is actually the size of a battery....

Aug 17,2023 | STACY

The 18650 lithium-ion battery is one of the lithium-ion batteries and the first lithium-ion battery. 18650 is actually the size of a battery. Ordinary 18,650 batteries are also divided into lithium-ion batteries and lithium iron phosphate batteries. Eighteen of the 18,650 indicate a lithium-ion battery with a diameter of 18 mm, 65 indicate a length of 65 mm, and 0 indicates a cylindrical cell.

The advantages of 18650 lithium-ion batteries

Large capacity: The 18650 Mach lithium-ion battery is usually between Mach 1200 and 3600, while the typical battery capacity is only about Mach 800, and the capacity of the 18650 lithium-ion battery can easily exceed Mach 5000.

long life :18650 lithium-ion battery has a long service life, and the cycle life can reach more than 500 times in normal use, which is more than twice that of ordinary batteries.

high safety technical performance: 18650 lithium-ion battery safety production performance is high, in order to prevent the battery system short circuit fault phenomenon, 18650 lithium battery anode and cathode are separated. So the probability of it short-circuiting is as low as we can get. By installing a protection board, the battery can be avoided from overcharging and overdischarging, so that students can also extend the network life of the battery.

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

no memory effect, no need to empty the remaining power before charging, easy to use.

Low internal resistance: The internal resistance of polymer batteries is less than that of ordinary liquid batteries. The internal resistance of the domestic polymer battery can be lower than 35mω, which greatly reduces the self-consumption of the battery, extends the standby time of the mobile phone, and can reach the level of international integration. Polymer lithium batteries that support large discharge currents are ideal for remote control models and are the most promising alternatives to NIMH batteries.

It can be connected in series or combined to form an 18650 lithium battery pack.

the use of a wide range of laptop or computer, walkie-talkie, portable DVD, instrument instrumentation, sound system equipment, model aircraft, toys, cameras, digital and camera and other electronic technology equipment.

Disadvantages of 18650 lithium-ion battery

The biggest disadvantage of the 18650 lithium-ion battery is that the volume has been fixed, and it is not well positioned on some notebooks or some products. Of course, this shortcoming can also be said to be an advantage, compared to other lithium polymer lithium batteries that can be customized and changed in size. And it has also become an advantage over some products with specified battery specifications.

All 18650 lithium-ion batteries are produced with a protective circuit that prevents the battery from being overcharged, causing discharges. Of course, this is necessary for lithium-ion batteries. This is also a disadvantage of lithium-ion batteries, because lithium-ion batteries are made of lithium cobalt oxide, and lithium-ion batteries made of lithium cobalt oxide cannot be charged at high currents, and safety is poor.

18650 lithium-ion battery production conditions are high. Compared with the general battery production, the production conditions of 18650 lithium-ion batteries are higher, which undoubtedly increases the production cost.

Use of 18650 lithium-ion power battery

The 18650 theory of battery life called for 1,000 charge cycles. Due to its large unit density capacity, most of it is used for notebook batteries, in addition, 18650 in the work of excellent stability, widely used in all major electronic fields: high-end flashlights, portable power supplies, wireless data transmission, warm clothing, shoes, portable instruments, portable lighting equipment, portable printers, industrial equipment, medical equipment and so on.

18650 pack lithium-ion batteries clarification