What are the performance advantages of 18650 lithium battery?

The 18650 lithium battery has the advantages of light weight, large capacity, and no memory effect, so it has been widely used-many digital devices use lithium-ion batteries as power sources, although their prices are relatively expensive.

1. The temperature ranges of several stages of low-temperature polymer lithium batteries are as follows: In the range of -50°C to 50°C, discharge at a rate of 0.2C can reach an effective discharge capacity of more than 75%; the effective cycle life is 150 to 200 times.
When the temperature is between -40°C and 60°C, the 0.2C rate discharge, the effective discharge capacity is more than 85%, the 0.5C rate discharge capacity is more than 75%, and the effective cycle life is more than 180 times; at -30°C to In the range of 65 ℃, 0.2C rate discharge, the effective discharge capacity is more than 90%, 2C rate discharge can reach more than 75%, and the effective cycle life is more than 300 times.
In the range of -20°C to 75°C, 0.2C rate discharge, the effective discharge capacity is greater than 95%, and it can reach 5C discharge, the effective discharge capacity is greater than 65%, and the effective cycle life is greater than 300 times.
The above basic data may deviate due to the specific usage conditions, and because the usage environment is complex, it is impossible to say the same, and everything is based on the actual situation.
2. Low cost and large-scale production. In terms of product weight, in colloidal or solid electrolytes, low-temperature polymer lithium batteries are lighter than low-temperature lithium iron phosphate batteries when the voltage and capacity are the same. For low temperature 18650 lithium battery.
From the perspective of production cost, these three low-temperature batteries are costly, which is also one of the important factors restricting their use.
3. The advantages of adapting to equipment space requirements. At present, low-temperature polymer lithium batteries are basically colloidal or solid-state lithium batteries. It can be compared with the freedom of maneuvering, and it is basically possible to customize it on demand.
Especially for small and ultra-thin batteries, it has more advantages. Now this kind of application is more portable electronic equipment or smart clothing equipment, especially cold adventure equipment, which is the battery of choice at present.