Power bank: Is polymer battery safer than 18650 battery?

Mobile power: polymer battery is safer than 18650 battery? Smart phone devices are getting higher and higher, but battery technology has not been turned on. Every smart phone user has deeply felt the problem of short battery life in mobile phones. And this time, the power bank has become a very important accessory. There are many kinds of mobile power products on the market. In order to promote their products, various manufacturers are constantly instilling various ideas to customers. So, in this kind of information bombardment, can we still keep a clear head and choose mobile power calmly? The author lists some common misunderstandings when purchasing mobile power. Chen test said that at present, there is no unified mobile power certification standard in our country. Until 2013, the so-called testing centers of all brands were third-party agencies and companies negotiating testing items. Therefore, there is no need to show that the product is qualified, at least from the most important technical policy of mobile power: discharge curve analysis to adjust the gold content of the product. Polymer batteries are safer than 18650 batteries. Many people have heard this statement: 18650 batteries have the risk of bursting, and polymer batteries are safer than 18650 batteries, because in the worst case, 18650 batteries will catch fire and will not burst. . This is correct in theory, but not in reality. The 18650 battery is made of steel and is not easily deformed. It opened for a long time. The current technology is very complicated. The 18650 batteries processed by international manufacturers such as Panasonic, Sony, Samsung, etc., have safe discharge function, stable battery, and excellent circuit design to ensure safe completion, and the probability of explosion is very low. Although polymer batteries are safer in theory, the lithium ions inside the battery are in a paste form, and the outside of the battery is wrapped with aluminum plastic film, which is soft in texture, simple in deformation, and not resistant to collisions. Therefore, the technology is difficult and the manufacturers have high processing requirements. At present, only a few domestic manufacturers can process high-quality polymer batteries, and the overvoltage maintenance adopted by different manufacturers is also very different. Therefore, in the domestic market, polymer batteries are not necessarily safer than 18650 batteries. The larger the capacity, the better. Because capacity is the most important parameter that affects the length of time the mobile power is used, many people will think that the mobile power has a large capacity. During this time, look for the mobile power in Taobao sales rankings. You can see that in hundreds of The capacity of tens of thousands of mobile power is too weak, often 20,000 or even 30,000 ma. So, is the bigger the better? The power bank with more than 10,000 milliamperes generally has 5 to 6 batteries. We know that the capacity of the power bank is proportional to the capacity. The larger the capacity, the larger the volume. Therefore, the purchase time is based on your own needs. If you think that you are not traveling frequently, don't take a brick to run around and the phenomenon on the virtual target market is still very serious (there is a difference in qi, please refer to the individual author to teach you how to move with different virtual standards Power supply), bad manufacturers have high-capacity customers, and the practical ability of the product is far lower than the output, so don't believe in the super-powered mobile power. Due to the price advantage of the network method, it can often attract customers to buy. And we have seen that the most-selling power bank on Taobao now has a common feature, that is, large capacity and low price. This has also become the first factor that customers consider when choosing and purchasing. But in practice, the quality of such mobile power may not stand the test. In the early years, Skynet made a horizontal evaluation of Taobao hotspot mobile power supply, and the test results proved that this cheap and high-capacity mobile power product has many problems. Therefore, when buying, you should not blindly follow the online sales, you must stick to a rational mind, and try to choose some well-known brands, so that the probability of problems will be greatly reduced. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How is 18650 lithium battery rolled?