Disadvantages of 18650 lithium battery production technology and process.
This includes Apple products such as smartphones and tablets. The burning and explosion accidents caused by built-in lithium-ion batteries have raised questions about mobile power products with the same power, and consumers are concerned that mobile power will become another source of unsafe accidents. 18650 lithium battery technology is one of its major weaknesses.
18650 cylindrical lithium-ion battery is the most mature type of liquid lithium-ion battery in the world, widely used in mobile terminal devices, especially tablets and smartphones, and can be used as a single battery or battery pack. However, due to the structural characteristics of the 18650 battery, some defects have inevitably occurred. For example, since the announcement of the explosion accident, due to the short circuit of the 18650 lithium-ion battery: if the battery is not used or designed properly, the internal pressure of the lithium-ion battery will be too high. When a leak occurs, the hard shell (steel or aluminum shell) of the battery will be under pressure, causing the shell to explode.
The current mobile power products all use
lithium-ion batteries as energy storage units. There are two directions for the technological development of this lithium-ion battery. One of them is liquid lithium-ion batteries. The 18650 lithium-ion battery is manufactured according to its specifications of a diameter of 18mm and a height of 65mm; Another type is polymer lithium-ion batteries, generally designed as square lithium-ion batteries. In many devices, polymer lithium-ion batteries are also used for electric propulsion because their shape can be arbitrary. Its application in mobile power banks can meet users' needs for miniaturization and refinement of mobile power banks. However, factories producing polymer lithium-ion batteries have higher costs because the materials they use are different from liquid lithium-ion batteries.
Many consumers seem to be seeking low-cost high-capacity power banks, but they are not aware that these demands do not match the current state of battery technology. Just like feathers, high-quality products can open up the market. Early 18650 battery technology undoubtedly used lower priced technology. As mentioned earlier, 18650 batteries also have problems in other applications, such as the inability to completely avoid the use of mobile power sources on mobile terminals. Consumers are concerned that commercial mobile power sources are not alarmist. If consumers accidentally purchase low-quality mobile power sources or overcharge them, it will cause the mobile power sources to release heat above normal levels during the electrolysis of hydrogen gas, which cannot be effectively prevented, resulting in internal short circuits of the battery causing explosions and combustion. Therefore, consumers should not only choose mobile power supplies with polymer lithium-ion batteries as much as possible, but also choose products from reputable manufacturers. Although the price is slightly higher, they have more safety guarantees.
