Analyze the advantages and disadvantages of polymer core in detail

Polymer core is also a type of lithium ion battery core. Unlike the 18650 core of a liquid electrolyte, the polymer uses a colloidal electrolyte, so it is also a lithium ion battery, but it is also a 18650 battery core. Differentiated.

Polymer cores are widely used. At present, many mobile devices use polymer cores for power supply, especially mobile phones and mobile power sources.

So what are the advantages and disadvantages of polymer cores?

Advantages-

1, high safety: It can not be denied that the polymer core is relatively safer than the 18650 core, or the danger is not so destructive. In general, the polymer core is at most a drum., Rupture, and combustion, No explosion is directly destructive.

2, larger capacity: Compared to ordinary batteries, the polymer capacity is relatively large, with a capacity of 100/115mAh/g.

3, flexible and variable shape: Since the polymer uses aluminum film packaging and has no fixed shape, it can produce flat core, or according to the needs of different customers, custom core of different shapes to meet different needs, Very flexible.

4, charging speed: Compared with other battery types, polymer core charging speed is much faster, discharge current is relatively stable.

5 The weight is relatively light: Due to the use of hard shell protection, the polymer core is lighter than the 18650 core of the same volume.

Deficiencies-

1, high cost: Compared with other batteries, the cost of polymer batteries is almost the highest, and it is concentrated on electrolytes that are difficult to reduce. High cost has become a major factor that restricts the development of polymer batteries.

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

3, Shanzhai is serious: due to the good prospects of the polymer battery market, but the manufacturing cost is high, so there are many 18650 power core flattened Shanzhai into polymer core, once a cottage crisis.

4, lower energy density: Compared with other lithium-ion batteries, the energy density of polymers is relatively low, which has led many manufacturers to desperately compress safety protection in order to increase capacity.

The page contains the contents of the machine translation.