The raw materials are usually made from lithium cobalt oxide, lithium manganese oxide, and ternary lithium.According to the corresponding proportion of the three compounds, they are manufactured by the corresponding process. The outer packaging design is mainly made of aluminum-plastic film, and the lithium material next to it is slimy.Therefore, the shape may be customized arbitrarily.At the same time, ultra-thin batteries may be manufactured, such as ultra-thin batteries of 0.33mm and 0.50mm.The outer packaging of the polymer battery is made of a layer of aluminum-plastic film, and a layer of high-temperature tape is coated on the outside. The insurance problem of the polymer battery is leakage, which causes a short circuit and bulging inside the battery, causing spontaneous combustion.

   However, compared with the 18650 battery, the polymer battery is better in terms of insurance.However, incineration can also bring insurance risks. Therefore, users who advocate the use of mobile chargers should avoid placing mobile chargers on pillows and bedside places as much as possible. 

   18650 and polymer batteries are the same as lithium batteries. At present, 18650 is generally lithium iron phosphate and lithium manganese acid on the market. There are ternary ones. Let's talk about ternary ones succinctly and clearly. The ternary material 18650 is moderately priced. The market price of 1800 mAh is about 7 yuan for domestic products. The nominal voltage is 3.8V. The voltage may reach 4.2V when used, and the low voltage can reach 2.5V. Without memory effect, the scope of use of D is also relatively wide, and the domestic skills and strength are also possible, and it is practical to make domestic products.

   The polymer batteries I have seen are mainly soft-packed. There are energy-based and capacity-based. The material is not much different from 18650, except that 18650 is a stainless steel plate shell, and the polymer is an aluminum-plastic film shell. It is practical for industrial production and power supply for vehicles.

https://www.custom-battery-packs.com：Custom Battery Packs  Battery Packs  Custom Batteries