Issue 39, 2024

Bifunctional interface stabilizer for promoting preferential crystal face adsorption and inducing planar Zn growth

Abstract

Aqueous Zn-ion batteries (AZBs) with high safety and low cost have been considered as one of the most promising energy storage devices, but the related application is always impeded by the uneven Zn deposition and uncontrollable dendrite formation. Herein, a unique kind of organic small molecule with two zincophilic sites (O-containing and amino groups), 2-aminoethanesulfonic acid, has been used as a bifunctional interface stabilizer (BIS) for modifying the common electrolyte of AZBs. Interestingly, O-containing groups in BIS prefer to tightly adsorb on the (100) and (101) planes of Zn metal, selectively exposing the (002) plane that can guide planarized Zn growth. Meanwhile, amino groups play significant roles in attracting Zn ions and promoting homogenous distribution. According to the theoretical calculation and in/ex situ experimental observations, dendrite-free plating and reduced by-product performances can be determined. AZBs adopting functional electrolytes with BIS display improved electrochemical results. An extremely high CE value over 99.5% for 2000 cycles, stable and ultralong lifespan of 4000 h and high capacity retention of 73.8% after 700 cycles for the full cell loading MnO2 can be obtained. The exploration of BIS can provide beneficial progress for constructing stable and long-life AZBs.

Graphical abstract: Bifunctional interface stabilizer for promoting preferential crystal face adsorption and inducing planar Zn growth

Supplementary files

Article information

Article type
Paper
Submitted
18 jul 2024
Accepted
31 aug 2024
First published
02 sep 2024

J. Mater. Chem. A, 2024,12, 26536-26543

Bifunctional interface stabilizer for promoting preferential crystal face adsorption and inducing planar Zn growth

T. Liu, S. Lu, R. Jiang, L. Chen, X. Wang, Y. Wang and Z. Yu, J. Mater. Chem. A, 2024, 12, 26536 DOI: 10.1039/D4TA04973J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements