Aramid-coated diaphragm technology takes full advantage of the inherent properties of aramid materials. An aramid functional layer is uniformly coated on the base film to form a composite film, which achieves reliable electrode isolation and comprehensive protective effects for lithium batteries.
Aramid-coated diaphragms feature outstanding high-temperature resistance, superior chemical stability and excellent tear strength. Such comprehensive performance enables them to exert remarkable value in boosting the overall safety and electrochemical performance of lithium-ion batteries.
Benefiting from its special molecular chain structure, aramid fiber presents high molecular orientation, high crystallinity and obvious anisotropy. Accordingly, aramid composite diaphragms deliver extraordinary mechanical strength.
In comparison with conventional ceramic-coated separators, aramid-coated diaphragms possess much better puncture resistance. It effectively strengthens the structural mechanical stability of cells and fundamentally improves the intrinsic safety of lithium batteries.