Boehmite Development Trend

    The country has improved the power and 3C electrical safety performance standards, and the coating of power battery pack pole pieces has become an inevitable choice for ternary batteries; NCA has a higher energy density than NCM, and 200-500 nanometer boehmite is used as a kind of aluminum. One of the sources; it gave birth to the future market demand for electrode coating and cathode materials.

    Battery separators for power, consumer terminals, and microelectronics are currently dominated by 12um and 9um single-sided coating (129+2~3.5). In the future, the next generation of 7um and 5um double-sided and single-sided ultra-thin coatings will be required. The bulk density is 1.25~1.5g/m2, the pores are uniform, the coating thickness is 1~2um/surface, the amount of powder used for 1m2 diaphragm coating is reduced from 3.5-5.5g to less than 3g

    Application performance comparison of boehmite and alumina: the thermal performance of the membrane is equivalent to that of mainstream alumina. The battery cycle efficiency is equivalent, but it is lower than that of high-purity alumina. The domestic diaphragm coating market will be in most phosphoric acid in 2~3 years. In the field of lithium and 3C, a small part of the ternary battery field (low energy density requirements) and the long-term coexistence of boehmite in most ternary and high-end 3C fields will gradually take shape, by then boehmite will occupy more than 50% of the coating Market (similar to South Korea and Japan), more than 80% of the coated market.