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1. The fundamental difference is the raw materials

This is the overall root cause of the different manifestations of the two. Mobile polymer lithium-ion batteries refer to the use of polymer materials in at least one of the three major components of the positive electrode, negative electrode, or electrolyte. The meaning of high polymer is high molecular weight, and the corresponding concept is small molecule. High polymer has high strength, high toughness, and high elasticity.

2. Differences in shaping

Mobile polymer lithium-ion batteries can achieve thinness, arbitrary surface area, and arbitrary shape because their electrolytes can be solid or gelatinous rather than liquid. Lithium ion batteries use electrolytes and require a sturdy outer shell as a secondary packaging to accommodate the electrolyte. Therefore, this also adds a portion of weight to lithium-ion batteries.

3. Security aspect

The current polymers are mostly soft pack batteries, using aluminum-plastic film as the outer shell. When organic electrolytes are used internally, even if the liquid is very hot, it will not explode because aluminum-plastic film polymer batteries are solid or colloidal and have no leakage, only natural rupture. But nothing is absolute. If the instantaneous current is large enough and a short circuit occurs, it is not impossible for the battery to self ignite or burst. The occurrence of safety accidents in mobile phones and tablets is often caused by this situation.

4. Cell voltage

Due to the use of polymer materials in mobile phone polymer lithium-ion batteries, multiple layers can be combined in the battery cells to achieve high voltage. The nominal capacity of lithium-ion battery cells is 3.6V. To achieve high voltage in practical use, multiple cells need to be connected in series to form an ideal high voltage working platform.

The characteristics of lithium-ion batteries and lithium polymer batteries are as follows:

There is no battery leakage issue, and the battery does not contain liquid electrolyte inside, using colloidal solids.

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