Currently, there are three main types of power bank battery cells on the market: 18650 cells, polymer cells, and lithium iron phosphate cells.
18650 battery cell 18650 lithium battery cell refers to a battery with a diameter of 18 mm and a length of 65 mm. 0 represents a cylindrical battery. The 18650 battery cell technology is relatively mature, with stable battery structure, high specific capacity, outstanding comprehensive performance, and can be used in many ranges due to its small size. The disadvantage is that its safety is worse than that of polymer lithium batteries, and the number of cycles of the battery cell is relatively low, about 300 times.
The difference between polymer cells and traditional lithium ion batteries lies in the production process. Lithium batteries are wound and have a relatively soft volume. The polymer is superposed and has a hard body shape. The capacity of polymers and lithium batteries with the same volume is larger, about 30% higher. It is safer and has a low risk of explosion. Long service life. Charging and discharging have reached more than 500 times. The disadvantage is that the cost is high, and polymer cells with the same capacity are at least 100% more expensive than 18650 lithium ion cells.
The above is the classification of lithium batteries and the types of lithium battery cells. Different types of lithium batteries have different performance, and the six types of lithium batteries specifically include: lithium cobaltate, lithium manganate, nickel cobalt lithium manganate, nickel cobalt lithium aluminate, lithium iron phosphate, lithium titanate, and so on.
Currently, the best quality is polymer batteries. On the market, ATL batteries, which belong to this brand, are all used by STW's source factories. This high-quality battery ensures a good design fit for the size and capacity of the power bank. And has a long service life.
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