Superior performance of ordered macroporous TiNb2O7 anodes for lithium ion batteries: Understanding from the structural and pseudocapacitive insights on achieving high rate capability

The three-dimensionally ordered macroporous (3DOM) TiNb2O7 composed of interconnected single-crystalline nanoparticles was prepared using polystyrene colloidal crystals as hard template. This architecture provides facile Li+ insertion/extraction and fast electron transfer pathway, and then enables high-effective lithium ion intercalation pseudocapacitive behavior.360