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Atomically bonding Na anodes with metallized ceramic electrolytes by ultrasound welding for high‐energy/power solid‐state sodium metal batteries

Authors :
Dongchen Li
Xinxin Wang
Qi Guo
Xiaole Yu
Shangxu Cen
Huirong Ma
Jingjing Chen
Dajian Wang
Zhiyong Mao
Chenlong Dong
Source :
Carbon Energy, Vol 5, Iss 2, Pp n/a-n/a (2023)
Publication Year :
2023
Publisher :
Wiley, 2023.

Abstract

Abstract A solid‐state sodium metal battery has cut a striking figure in next‐generation large‐scale energy storage technology on account of high safety, high energy density, and low cost. Nevertheless, the large interfacial resistance and sodium dendrite growth originating from the poor interface contact seriously hinder its practical application. Herein, a modified ultrasound welding was proposed to atomically bond Na anodes and Au‐metalized Na3Zr2Si2PO12 electrolytes associated with the in situ formation of Na–Au alloy interlayers. Thereupon, intimate Na3Zr2Si2PO12–Au/Na interfaces with a low interfacial resistance (~23 Ω cm2) and a strong dendrite inhibition ability were constructed. The optimized Na symmetric battery can cycle steadily for more than 900 h at 0.3 mA cm−2 under a low overpotential (

Details

Language :
English
ISSN :
26379368
Volume :
5
Issue :
2
Database :
Directory of Open Access Journals
Journal :
Carbon Energy
Publication Type :
Academic Journal
Accession number :
edsdoj.fa20d889c0184b98aa5ef4e6ea807ba9
Document Type :
article
Full Text :
https://doi.org/10.1002/cey2.299