Separator is one of the four key materials for lithium batteries, so how important is it?

　　1. The performance of the diaphragm determines the interface structure and internal resistance of the battery, which directly affects the battery's capacity, cycle and safety performance. A separator with excellent performance plays an important role in improving the overall performance of the battery.

　　2. In the material cost of the entire lithium battery, cathode materials account for 30%, ranking first; separators account for 25%, ranking second; anode materials account for 15%, ranking third.

　　3. Lithium battery separators have high technical barriers and high gross profit margins! Diaphragms have long been an area with a high return on investment. At the same time, lithium battery separators have always been the product with the highest gross profit margin among the four major materials.

　　4. The four core materials of lithium batteries: the positive electrode, the negative electrode, the separator and the electrolyte, whose output value growth rate have exceeded 50%. Among them, the growth rate of diaphragm production value exceeds 100%, which is the material with the fastest growth rate of production value!

　　Lithium-ion battery (LIB) has become the main energy storage solution in modern social life. Among them, lithium iron phosphate batteries are a perfect substitute for lead-acid batteries and are the first choice in the energy storage industry.