Why low self-discharge is important Performance

January 20, 2021

Why low self-discharge is important Performance

 

At present, lithium batteries are used more and more widely in various digital devices such as notebooks, digital cameras, and digital video cameras. In addition, they also have broad prospects in automobiles, mobile base stations, and energy storage power stations. In this case, the use of batteries no longer appears alone as in mobile phones, but more in the form of series or parallel battery packs. The capacity and life of a battery pack are not only related to each single battery, but also related to the consistency between each battery. Poor consistency will greatly affect the performance of the battery pack. The consistency of self-discharge is an important part of the influencing factors. A battery with inconsistent self-discharge will have a large difference in SOC after a period of storage, which will greatly affect its capacity and safety. Research on it will help improve the overall level of our battery packs, obtain a higher lifespan, and reduce the defective rate of products.

Influence of self-discharge 1. Self-discharge causes a decrease in capacity during storage Several typical problems caused by excessive self-discharge: 1. The car cannot be started after parking for too long; 2. Before the battery is put into storage, everything is normal, and low voltage or even zero voltage is found when it is shipped; 3. In summer, when the car GPS is placed on the car, after a period of time, I feel that the battery or the time of use is obviously insufficient, and even the battery bulges. 2. The self-discharge of metal impurities causes the diaphragm aperture to be blocked, and even pierces the diaphragm to cause a local short circuit, endangering the safety of the battery

So  low self-discharge is important Performance .