The characteristics and application of 18650 lithium batteries.
Lithium ion batteries have been widely used due to their advantages such as light weight, large capacity, and no memory effect. Many digital devices use lithium-ion batteries as power sources, although their prices are relatively expensive. 18650 lithium battery is a standardized lithium-ion battery model established by Japanese company SONY, the pioneer of lithium-ion batteries, in order to save costs.
18650 is only the size and model of the battery, which can be divided into 18650 for lithium-ion batteries, 18650 for lithium iron phosphate batteries, and 18650 for nickel hydrogen batteries, but this is relatively rare. The common 18650 is lithium-ion.
advantage
1. Large capacity: The capacity of 18650 lithium battery PACK is generally between 1200mAh~3600mAh, while the general battery capacity is only about 800mAh.
2. Long lifespan: The battery has a long service life, with a cycle life of over 500 times during normal use, which is more than twice that of a regular battery.
3. High safety performance: 18650 lithium-ion batteries have high safety performance, do not explode or burn; Non toxic, pollution-free, with more than 500 cycles; Good high-temperature resistance.
4. High voltage: The voltage is generally 3.6V, 3.8V, and 4.2V, which is much higher than the 1.2V voltage of nickel cadmium and nickel hydrogen batteries.
5. No memory effect: there is no need to empty the remaining battery before charging, making it convenient to use.
Purpose
The theoretical lifespan of
18650 lithium batteries is 1000 cycles of charging. Due to the large capacity per unit density, most of the 18650 is used for laptop batteries. In addition, due to its excellent stability performance in work, it is widely used in various electronic fields: commonly used in high-end strong light flashlights, portable power supplies, wireless data transmitters, electric heating and warm clothing, shoes, portable instruments and meters, portable lighting equipment, portable printers, industrial instruments, medical instruments, etc.
