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    What are the advantages and disadvantages of polymer lithium ion batteries compared to cylindrical lithium ion batteries, such as 18650?

    2019-06-10 14:17:47 0

    The polymer battery cell is also a kind of lithium ion battery cell. It is different from the 18650 battery cell of the liquid electrolyte. The polymer is a gel electrolyte, so it is also a lithium ion battery, but it is also with 18650 batteries. differentiate.

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

    So what are the advantages and disadvantages of polymer batteries cell?

    advantage--

    1, high security: can not deny, relatively speaking, polymer batteries are safer than 18650 batteries, or dangerous damage is not so large, in general, polymer batteries are at most Drums, ruptures, and burning, without the direct destructive nature of the explosion.

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

    3, the shape is flexible: because the polymer is packaged in aluminum film, there is no fixed shape, so it can manufacture flat cells, or customize different shapes of batteries according to different customer needs to meet different needs. Very flexible.

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

    5 weight is relatively light: due to the use of hard shell protection, the polymer battery is lighter than the same volume of 18650 batteries.


    Disadvantages -

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

    2, there is no fixed model: due to the variability of the shape, although it can better adapt to the needs of the market, but also leads to the lack of a unified model, there is no possibility of replacement, thus losing the sustainability of the market.

    3, the cottage is serious: due to the polymer battery market prospects, but the manufacturing cost is high, so there are a lot of 18650 batteries in the market flat after the cottage into a polymer battery, once a cottage crisis.

    4. Low 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.

    battery|geb|lithium polymer

    battery|geb|lithium polymer

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