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Constructing Hollow Microcubes SnS2 as Negative Electrode for Sodium‐ion and Potassium‐ion Batteries.

Authors :
Li, Chengping
Yu, Hongrui
Dong, Peng
Wang, Ding
Zeng, Xiaoyuan
Wang, Jinsong
Zhang, Zhengfu
Zhang, Yingjie
Sarapulova, Angelina
Luo, Xianlin
Pfeifer, Kristina
Ehrenberg, Helmut
Dsoke, Sonia
Source :
Chemistry - A European Journal; May2024, Vol. 30 Issue 25, p1-11, 11p
Publication Year :
2024

Abstract

Sodium/potassium‐ion batteries (NIBs and KIBs) are considered the most promising candidates for lithium‐ion batteries in energy storage fields. Tin sulfide (SnS2) is regarded as an attractive negative candidate for NIBs and KIBs thanks to its superior power density, high‐rate performance and natural richness. Nevertheless, the slow dynamics, the enormous volume change and the decomposition of polysulfide intermediates limit its practical application. Herein, microcubes SnS2 were prepared through sacrificial MnCO3 template‐assisted and a facile solvothermal reaction strategy and their performance was investigated in Na and K‐based cells. The unique hollow cubic structure and well‐confined SnS2 nanosheets play an important role in Na+/K+ rapid kinetic and alleviating volume change. The effect of the carbon additives (Super P/C65) on the electrochemical properties were investigated thoroughly. The in operando and ex‐situ characterization provide a piece of direct evidence to clarify the storage mechanism of such conversion‐alloying type negative electrode materials. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09476539
Volume :
30
Issue :
25
Database :
Complementary Index
Journal :
Chemistry - A European Journal
Publication Type :
Academic Journal
Accession number :
176989204
Full Text :
https://doi.org/10.1002/chem.202304296