In-Situ Constructing A Heterogeneous Layer on Lithium Metal Anodes for Dendrite-Free Lithium Deposition and High Li-ion Flux.
Angew Chem Int Ed Engl
; 62(11): e202217458, 2023 Mar 06.
Article
em En
| MEDLINE
| ID: mdl-36640120
ABSTRACT
Constructing efficient artificial solid electrolyte interface (SEI) film is extremely vital for the practical application of lithium metal batteries. Herein, a dense artificial SEI film, in which lithiophilic Zn/Lix Zny are uniformly but nonconsecutively dispersed in the consecutive Li+ -conductors of Lix SiOy , Li2 O and LiOH, is constructed via the in situ reaction of layered zinc silicate nanosheets and Li. The consecutive Li+ -conductors can promote the desolvation process of solvated-Li+ and regulate the transfer of lithium ions. The nonconsecutive lithiophilic metals are polarized by the internal electric field to boost the transfer of lithium ions, and lower the nucleation barrier. Therefore, a low polarization of ≈50â
mV for 750â
h at 2.0â
mA cm-2 in symmetric cells, and a high capacity retention of 99.2 % in full cells with a high lithium iron phosphate areal loading of ≈13â
mg cm-2 are achieved. This work offers new sights to develop advanced alkali metal anodes for efficient energy storage.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
China