Conjugated phthalocyanine-based framework as artificial SEI for over 400 Wh kg^-1 lithium-metal battery.

ABSTRACT: High-voltage lithium-metal batteries (HVLMBs) are appealing candidates for next-generation high-energy rechargeable batteries, but their practical applications are still limited by the severe capacity degradation, attributed to the poor interfacial stability and compatibility between the electrode and the electrolyte. In this work, a 2D conjugated phthalocyanine framework (CPF) containing single atoms (SAs) of cobalt (CoSAs-CPF) is developed as a novel artificial solid-electrolyte interphase (SEI) in which a large amount of charge is transferred to the CPF skeleton due to the Lewis acid activity of the Co metal sites and the strong electron-absorbing property of the cyano group (-CN), greatly enhancing the adsorption of the Li⁺ and regulating the Li⁺ distribution towa

SUBMITTER: Zang Y 

PROVIDER: S-EPMC11740503 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature