Affiliation:
1. Department of Materials Science and Engineering City University of Hong Kong Tat Chee Avenue, Kowloon Tong, Hong Kong SAR P. R. China
2. State Key Laboratory of Powder Metallurgy Central South University Changsha 410083 P. R. China
3. Department of Chemistry & Center of Super-Diamond and Advanced Films (COSDAF) City University of Hong Kong Hong Kong SAR 999077 P. R. China
Abstract
AbstractInspired by dative boron‐nitrogen (B←N) bonds proven to be the promising dynamic linkage for the construction of crystalline covalent organic polymers/frameworks (COPs/COFs), we employed 1,4‐bis(benzodioxaborole) benzene (BACT) and N,N′‐Di(4‐pyridyl)‐1,4,5,8‐naphthalenetetracarboxdiimide (DPNTCDI) as the corresponding building blocks to construct a functional COP (named as CityU‐25), which had been employed as an anode in rechargeable lithium ion batteries. CityU‐25 displayed an excellent reversible lithium storage capability of 455 mAh/g after 170 cycles at 0.1 A/g, and an impressive one of 673 mAh/g after 720 cycles at 0.5 A/g. These findings suggest that CityU‐25 is a standout candidate for advanced battery technologies, highlighting the potential application of this type of materials.
Funder
City University of Hong Kong
Innovation and Technology Fund