Redox-active porous organic frameworks have emerged as a unique platform for electrochemical energy storage due to their high surface area, tunable physicochemical properties and light wight. In this talk, we present the use of both amorphous and crystalline frameworks as electrode material in rechargeable sodium ion batteries. We present the performance of azo-linked porous polymers (ALPs) and covalent organic frameworks (Aza-COFs) in sodium ion storage and show how the design of the frameworks dictates redox properties and battery capacity. These highly cross-linked organic frameworks are insoluble in electrolytes and have π-conjugated skeletons with readily accessible redox-active sites which enable high specific capacity and superior cycling stability and rate capability.

Porous organic frameworks as electrode material in rechargeable sodium ion batteries

ACS Fall 2021

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