Phenediamine bridging phthalocyanine-based covalent organic framework polymers used as anode materials for lithium-ion batteries

Phthalocyanine-based COFs (CoTAPc-PDA/BDA/TDA) with increasing pore sizes are prepared, which provides large specific surface area and mesoporous channels for Li + . As until pore size increases, surface area increases accordingly, resulting in improved electrochemical behaviors.