Polymer lithium battery is developed on the basis of liquid lithium ion battery. Its positive and negative electrode materials are the same as liquid lithium ion battery, but it uses gel electrolyte and aluminum plastic film as outer packaging, so it has lighter weight. Thinner, higher energy density and safety features are widely favored by customers at home and abroad.
Advantages of polymer lithium battery:
1. High energy density
The weight of the lithium polymer battery is half of the same capacity nickel-cadmium or nickel-hydrogen battery, and the volume is 40-50% of the nickel-cadmium and 20-30% of the nickel-hydrogen battery.
2. High voltage
The operating voltage of a single lithium polymer battery is 3.7V (average value), which is equivalent to three nickel-cadmium or nickel-hydrogen batteries connected in series.
3. Good safety performance
The outer packaging is aluminum-plastic packaging, which is different from the metal casing of liquid lithium batteries. Due to the use of flexible packaging technology, hidden internal quality hazards can be immediately revealed through the deformation of the outer packaging. Once a hidden safety hazard occurs, it will not explode, but will only swell.
4. Long cycle life
Under normal conditions, the charge-discharge cycle of a lithium polymer battery can exceed 500 times.
5. No pollution
Lithium polymer batteries do not contain harmful metals such as cadmium, lead, and mercury. The factory has passed the ISO14000 environmental system certification, and the products comply with the EU RoHS directive.
6. No memory effect
The memory effect refers to the phenomenon that the capacity of the nickel-cadmium battery decreases during the charging and discharging cycle. Lithium polymer batteries do not have this effect.
7. Fast charging
Using a constant current and constant voltage charger with a rated voltage of IMPROVE BATTERY polymer lithium battery can make the lithium polymer battery fully charged within one to two hours.
8. Complete models
The models are complete, with a wide range of capacities and sizes, which can be designed according to customer needs. The thickness of a single particle is such as 0.8～10mm, and the capacity is such as 40mAh～20Ah.
Polymer lithium batteries are gradually expanding their market share due to their light weight, low mold opening cost, and high safety. Mainly used in digital products, it is also gradually developing into markets such as mobile phones, notebook computers, and power tools.