Do you know anything about the important uses of lithium-ion batteries?

The barrier is one of the key inner components. The performance of the barrier determines the interface layout and internal resistance of the lithium-ion battery, which directly affects the battery's capacity, reincarnation, and safety performance. The barrier with excellent performance has an important purpose for improving the overall performance of the battery. The achievement of barriers in lithium-ion batteries is important in two aspects at the moment: one is to provide safety and security for lithium-ion batteries. The barrier material must first have excellent insulation properties to prevent short circuits between the positive and negative poles or pierced by burrs, particles, and dendrites. Therefore, the barrier must have certain tensile and puncture strength, and it is not easy to tear. And under sudden high temperature conditions, the size is basically kept unchanged, and it will not shrink and cause large-area short circuit and thermal runaway of the battery. The second is to provide lithium-ion batteries with microporous channels that can achieve charging and discharging results and rate functions. Therefore, the barrier must be a thin film with high porosity and well-proportioned micropores. The characteristics of the material itself and the pore characteristics after film formation restrict the migration of lithium ions in the battery. The functional parameter at the moment is the ion conductivity. 1. The insulating layer can effectively prevent the positive and negative electrodes from colliding and causing internal short circuits. 2. The semi-permeable layer, which is important in liquid batteries such as lithium-ion batteries, can organize the passage of relatively large molecules and only allow small volumes of charged ions to pass, which can increase the concentration difference around the positive and negative electrodes. Facilitate the diffusion of ions, thereby improving the storage efficiency of the battery. The ion conduction capability of lithium-ion battery is directly related to the overall function of the battery. Its purpose of cutting off the positive and negative poles enables the battery to limit the increase in current under the environment where the battery is too charged and the temperature rises, preventing the battery from short-circuiting and causing explosion It has the purpose of self-closing micropores, which can be used for the safety and care of battery users and equipment. 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 article: What are the fundamental requirements of lithium-ion batteries for electrolyte?