Folding Keyboard

II.Battery Selection
Considering the above requirements, we recommend lithium-ion polymer batteries as the power source of the folding keyboard. Lithium-ion polymer batteries have the following advantages:
(i) High energy density
Compared with traditional lithium-ion batteries, lithium-ion polymer batteries have a higher energy density, which can provide more power in the same volume to meet the requirements of folding keyboards for long battery life. Their energy density can usually reach 150 - 200 Wh/kg or more, which means that the batteries can provide longer-lasting power support for the keyboard without adding too much weight and volume.
(ii) Thin and flexible
The form factor of lithium-ion polymer batteries can be customized according to the needs of the device, and can be made in a variety of shapes and thicknesses, making it ideal for space-critical devices such as folding keyboards. It can be packaged in the form of a soft package, which makes the battery more flexible in design, better adapting to the internal structure of the keyboard and realizing thin and light design.
(iii) Fast charging performance
With good fast charging capability, the battery can be charged with a large amount of power in a relatively short period of time through the use of appropriate charge management chips and charging strategies. Generally speaking, Li-ion polymer batteries can support a fast charging rate of 1C - 2C, i.e., the battery can be charged from an empty state to about 80% - 90% of the battery power in 1 - 2 hours, which greatly shortens the charging time and improves the user's experience.
(iv) Long cycle life
Long cycle life, after hundreds or even thousands of charging and discharging cycles, it still maintains a high capacity. This makes the folding keyboard in the process of long-term use, the battery performance will not obviously decline, reducing the frequency of users to replace the battery, reducing the cost of use. At the same time, the long cycle life also meets the requirements of environmental protection, reducing the pollution of waste batteries on the environment.
(E) Good safety performance
Lithium-ion polymer batteries have certain advantages in terms of safety. It uses a solid or gel electrolyte, which has a lower risk of leakage and better thermal stability than liquid electrolyte batteries. In addition, a variety of safety protection mechanisms are usually integrated inside the battery, such as overcharge protection, overdischarge protection, short-circuit protection, etc., which can effectively prevent the battery from having a safety accident under abnormal conditions and protect the user's safety.