Advantages and Disadvantages of Polymer Cells in lithium battery

The polymer cell is also a kind of Lithium Iron Phosphate Battery cell, different from the liquid electrolyte 18650 cell, the

The disadvantages --

1, high cost: compared with other batteries, the cost of polymer batteries is almost the highest, and it is concentrated on the difficult to reduce the electrolyte above, the high cost has become an important factor limiting the development of polymer batteries.

2, there is no fixed model: due to the variability of shape, although it can better meet the needs of the market, but also led to no unified model, there is no possibility of replacement, and thus lost the continuity of the market.

3, the cottage is serious: because the polymer battery market prospects are good, but the manufacturing cost is high, so there are a lot of 18650 cells on the market after the flat cottage in polymer cells, once there was a cottage crisis.

4, low energy density: compared with other lithium-ion batteries, the energy density of polymer is relatively low, which has led to many manufacturers desperately compressed safety protection to increase capacity.

Polymer cells are widely used, and many mobile devices are currently powered by polymer cells, especially mobile phones and mobile power supplies.

So what are the pros and cons of polymer cells?

Advantages --

1, high safety: it can not be denied that relatively speaking, the polymer cell is a little higher than the 18650 cell, or the dangerous damage is not so large, under normal circumstances, the polymer cell is at most bulging, rupture and combustion, there is no direct damage caused by explosion.

2, large capacity: compared with the general battery, the capacity of polymer is relatively large, gram capacity of 100/115mAh/g.

3, the shape is flexible: because the polymer uses aluminum film packaging, there is no fixed shape, so it can produce flat cells, or according to the needs of different customers, customized cells of different shapes to meet different needs, very flexible.

4, fast charging speed: Compared with other battery types, the charging speed of polymer cell is much faster, and the discharge current is relatively stable.

5 Relatively light weight: due to the use of hard shell protection, the polymer cell is relatively light compared to the 18650 cell of the same volume.

The disadvantages --

1, high cost: compared with other batteries, the cost of Lithium Polymer Battery is almost the highest, and it is concentrated on the difficult to reduce the electrolyte above, the high cost has become an important factor limiting the development of polymer batteries.

2, there is no fixed model: due to the variability of shape, although it can better meet the needs of the market, but also led to no unified model, there is no possibility of replacement, and thus lost the continuity of the market.

3, the cottage is serious: because the polymer battery market prospects are good, but the manufacturing cost is high, so there are a lot of 18650 cells on the market after the flat cottage in polymer cells, once there was a cottage crisis.

4, low energy density: compared with other LiFePO4 Battery, the energy density of polymer is relatively low, which has led to many manufacturers desperately compressed safety protection to increase capacity.