Analysis of the function of lithium battery barrier

The quality of the barrier function directly affects the internal resistance, discharge capacity, cycle life and battery safety functions of the lithium battery. The thinner the barrier and the higher the porosity, the lower the internal resistance of the battery and the better the high-rate discharge function. In the structure of lithium batteries, the barrier is one of the key inner components. Regarding the lithium battery series, since the electrolyte is an organic solvent system, barrier materials resistant to organic solvents are required. Generally, high-strength thin-film polyolefin porous membranes are used. The barrier is an important part of the lithium battery. It is located between the positive and negative electrodes inside the battery to ensure the passage of lithium ions while obstructing the transmission of electrons. The barrier function determines the battery's interface structure, internal resistance, etc., and directly affects the battery's capacity, cycle, and safety functions. A functional barrier has an important effect on improving the battery's induction function. In recent years, lithium battery technology has developed rapidly. As one of the central data in batteries, barriers determine the functions of lithium batteries. Therefore, barriers and preparation skills urgently need to be studied in depth. At present, the barriers of commercial lithium batteries are mainly polyolefin barriers, and the preparation process is transitioning from dry to wet. However, in recent years, different data systems and barriers of different preparation processes have been developed. 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: What are the current methods for heating low temperature batteries