Int J Mol Sci
December 2022
The use of redox-active organic materials in rechargeable batteries has the potential to transform the field by enabling lightweight, flexible, green batteries while replacing lithium with sodium would mitigate the limited supplies and high cost of lithium. Herein, we report the first use of highly porous azo-linked polymers (ALPs) as a new redox-active electrode material for rechargeable sodium-ion batteries. ALPs are highly cross-linked polymers and therefore eliminate the solubility issue of organic electrodes in common electrolytes, which is prominent in small organic molecules and leads to fast capacity fading.
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