What are the advantages of 18650 batteries?

What are the advantages of 18650 lithium batteries?

1. High energy density. Individual 18650 batteries have a capacity that can guarantee a high or low of 2200mAh, so the energy density is estimated to be around 500Wh/L, while the energy density of polymer batteries in mass production may be close to 600Wh/L. 2. Good insurance coefficient. We know that in its chemical state (such as charging, high temperature, etc.), lithium-ion batteries will undergo strong chemical changes inside, causing a lot of vapor. The 18650 battery uses a plastic shell with a certain compressive strength. When the internal standard pressure reaches a certain level, the aluminum shell will crack, causing a terrible safety production accident. That's also why individual rooms for testing 18650 batteries must be maintained layer by layer, and it is judged impossible to enter during testing. Polymer batteries do not have this problem, even under the same chemical conditions. Due to the low compressive strength of the packaging film, it will crack more easily if the standard air pressure is slightly higher, which is not easy to cause. Therefore, its condition is ignition. Therefore, in terms of insurance factor, polymer batteries are better than 18650 batteries.

The 18650 lithium battery has the following advantages: 1. It has a wide range of applications, including laptops, walkie talkies, portable DVDs, instruments, audio equipment, model aircraft, toys, cameras, digital cameras, and other electronic devices. 2. Series connection can be combined in series or parallel to form 18650 lithium battery packs. 3. The internal resistance of polymer battery cells with low internal resistance is smaller than that of individual liquid battery cells. The internal resistance of domestic polymer battery cells may even be below 35m Ω, which reduces the battery's self consumption and prolongs the standby time of mobile phones. It is entirely possible to reach the level of international standards. This polymer lithium battery that supports high discharge current is a fantasy choice for remote control models and has become a promising product for replacing nickel hydrogen batteries. 4. The no memory effect eliminates the need to drain residual power before charging, making it convenient to use. 5. The voltage of some 18650 lithium batteries with high voltage is around 3.

V. 3.8V and 4.2V are much higher than the 1.2V voltage of nickel cadmium and nickel hydrogen batteries. 6. High insurance function 18650 lithium battery insurance function is high, no, no burning; Non toxic, non polluting, RoHS certified; Various insurance functions work together in one go, with a cycle of more than 500 times; Good high temperature resistance and discharge efficiency at 65 degrees Celsius. To avoid battery short circuits, the positive and negative terminals of 18650 lithium batteries are separated. So the possibility of it causing a short circuit has been reduced. It is possible to install maintenance boards to prevent overcharging and overdischarging of the battery, which can also extend its lifespan. 7. The lifespan of 18650 lithium batteries is very long, with a cycle life of over 500 times during abnormal use, which is more than twice that of individual batteries. 8. The capacity of some 18650 lithium batteries is between 1200mAh and 3600mAh, while the capacity of some batteries is only about 800. If 18650 lithium batteries are combined to form an 18650 lithium battery pack, the 18650 lithium battery pack can easily break through 5000mAh.