Multiscale Defective Interfaces for Realizing Na-CO2 Batteries With Ultralong Lifespan

Multiscale Defective Interfaces for Realizing Na-CO2 Batteries With Ultralong Lifespan

© 2024 The Author(s). Advanced Materials published by Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - (2024) vom: 09. Okt., Seite e2409533
1. Verfasser: Xu, Changfan (VerfasserIn)
Weitere Verfasser: Hong, Ping, Dong, Yulian, Li, Yueliang, Shen, Yonglong, Biskupek, Johannes, Zhao, Huaping, Kaiser, Ute, Shao, Guosheng, Lei, Yong
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article CO2 batteries CO2 cathode Na metal anode defective interfaces dendrite‐resistant
Beschreibung
Zusammenfassung:© 2024 The Author(s). Advanced Materials published by Wiley‐VCH GmbH.
Despite their favorable high energy density and potential for CO2 recycling, Na-CO2 batteries have been held back by limitations in cycling capability, stemming from the sluggish CO2 reduction/evolution reaction (CO2RR/CO2ER) kinetics at CO2 cathode and unmanageable deposition/stripping of metallic Na at the anode upon cycling. Herein, a "two-in-one" electrode with multiscale defective FeCu interfaces (CPFeCu) is presented, which is capable of improving the CO2RR/CO2ER kinetics of CO2-breathing cathode, while modulating sodium deposition behavior. Experimental and theoretical investigations reveal multiscale defective FeCu interfaces are responsible for the enhancement of sodiophilicity and catalytic properties. The defect and valence oscillation effects originate in multiscale defective FeCu interfaces, effectively facilitating the adsorption of reactants and decomposition of Na2CO3 during CO2RR/CO2ER processes, along with exceptional cycling stability of 2400 cycles (4800 h) at 5 µA cm-2. Meanwhile, the CP@FeCu with sodium affinity creates a uniform electric field and robust adsorption for Na, making initial nucleation sites more conducive to Na deposition and achieving dendrite-resistant and durable anodes. This work offers a scientific insight into the functionalization design of "two-in-one" electrodes, which is essential for a unified solution to the challenges in sodium anodes and CO2 cathodes
Beschreibung:Date Revised 09.10.2024
published: Print-Electronic
Citation Status Publisher
ISSN:1521-4095
DOI:10.1002/adma.202409533