Polymer lithium battery is also called polymer lithium battery: Compared with the previous battery, it is a high-energy, miniaturized and lightweight battery. In terms of shape, polymer lithium batteries have ultra-thin characteristics that can meet the needs of certain products and can be made into batteries with certain shapes and capacities. In terms of safety, the outer packaging is aluminum-plastic packaging, which is different from the metal casing of liquid lithium batteries. Internal quality hazards can be immediately revealed through the deformation of the outer packaging. Once a safety hazard occurs, it will not explode, but will only expand. The theoretical small thickness of this battery can reach 0.5mm.

　　What are the advantages of polymer lithium batteries

　　1. There is no battery leakage problem. The battery does not contain liquid electrolytes and uses colloidal solids.

　　2. It can be made into a thin battery: the capacity is 3.6V400mAh, and the thickness can be as thin as 0.5mm.

　　3. The battery can be designed into various shapes

　　4. The battery may be bent and deformed: the polymer battery can be bent up to about 900

　　5. It can be made into a single high voltage: a battery with a liquid electrolyte can only obtain high voltage by connecting multiple batteries in series. Since the polymer battery has no liquid, it can be made into a multi-layer combination in a single battery to achieve high voltage.

　　6. The capacity will be twice that of a lithium-ion battery of the same size.