AG4 battery.What are the disadvantages of 18650 lithium-ion battery technology?

Including Apple products' smartphones and tablets, because of the combustion and explosion accidents of built-in lithium batteries, people are full of doubts about driving power bank products with the same power. Consumers are worried that power banks may become another source of this lack of confidence, and 18650 Lithium-ion battery technology is one of its weaknesses

Including Apple products' smartphones and tablets, because of the combustion and explosion accidents of built-in lithium-ion batteries, people are full of doubts about driving power bank products with the same power. Consumers are worried that power banks may become another source of this lack of confidence. And the 18650's lithium-ion battery technology is its one weak point.

As the most mature liquid lithium-ion battery type in the world, 18650 cylindrical lithium-ion batteries are widely used in mobile terminal devices, especially tablets and smartphones, either as a single battery or as a battery pack. However, the structural characteristics of the 18650 battery make it inevitable that there are some defects. Explosion accidents have been reported due to short circuits in the 18650 lithium-ion battery (Group): if it is used improperly or has its own design problems, the battery will cause the lithium-ion battery to (Group) The internal pressure is too great. In the event of pressure leakage, the pressure on the hard shell (steel or aluminum shell) of the battery will cause the shell to explode.

Currently, mobile power products use lithium-ion batteries as energy storage units. This lithium-ion battery has two technical routes. One is a liquid lithium-ion battery. The so-called 18650 lithium-ion battery is based on its specifications of 18mm diameter and 65mm height; the other is polymer lithium-ion battery, which is generally designed as a square lithium-ion battery. Polymer lithium-ion batteries are also used as power drives for many devices because they can be made in any shape. Applying it to mobile power supplies can meet users' needs for miniaturization and refinement of mobile power supplies. However, polymer lithium-ion batteries are more expensive to manufacture because they use different materials than liquid lithium-ion batteries.

Many consumers seem to have been pursuing high-capacity and low-price mobile power supplies, but they do not realize that these requirements are inconsistent with the existing state of battery technology. Some current mobile power brands, such as Feather, win by quality, and their products can open market access. Without exception, the early 18650 battery technology will be adopted at relatively cheap prices. As mentioned earlier, 18650 batteries have problems in other applications. In mobile terminals, mobile power supplies cannot be completely prevented. Consumers' worries about commercial mobile power supplies are not alarmist. If consumers accidentally buy inferior mobile power supplies or overcharge them, the mobile power supply, when working in the process of electrolyzing electrolytic hydrogen, can become highly charged. The normal level of heat release cannot be effectively prevented, which may lead to explosion and combustion due to internal short circuit of the battery. Therefore, in addition to trying to choose polymer lithium-ion battery mobile power supplies, consumers should also choose products from regular manufacturers. Although the price is slightly higher, the safety is more guaranteed.