Stabilizing a zinc anode <i>via</i> a tunable covalent organic framework-based solid electrolyte interphase
Vipada Aupama, Wathanyu Kao‐ian, Jinnawat Sangsawang, Mohan Gopalakrishnan, Suttipong Wannapaiboon, Ahmad Azmin Mohamad, Prasit Pattananuwat, Chakrit Sriprachuabwong, Wei‐Ren Liu, Soorathep Kheawhom
Abstract
Schiff base reactions of aldehyde and amine linkers. It is seen that COFs can regulate the Zn-ion flux, resulting in dendritic-free Zn. COFs can also mitigate the formation of an irreversible passive layer and the hydrogen evolution reaction (HER). Zn plating/stripping tests using a symmetrical cell suggest that HqTpCOF@Zn shows superior stability and greater coulombic efficiency (CE) compared to bare Zn. The full cell having COFs@Zn also displays much improved cyclability. As a result, the COF proves to be a promising ASEI material to enhance the stability of the Zn anode in aqueous media.