Stereoisomeric engineering mediated zinc metal electrodeposition: Critical balance of solvation and adsorption capability

Wen Liu; Qiwen Zhao; Ruheng Jiang; Xuyan Ni; Tiancheng You; Canglong Li; Yanzi Deng; Bingang Xu; Yuejiao Chen; Libao Chen

Advanced Powder Materials (Apr 2025)

Stereoisomeric engineering mediated zinc metal electrodeposition: Critical balance of solvation and adsorption capability

Wen Liu,
Qiwen Zhao,
Ruheng Jiang,
Xuyan Ni,
Tiancheng You,
Canglong Li,
Yanzi Deng,
Bingang Xu,
Yuejiao Chen,
Libao Chen

Affiliations

Wen Liu: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Qiwen Zhao: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Ruheng Jiang: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Xuyan Ni: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Tiancheng You: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Canglong Li: School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China
Yanzi Deng: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
Bingang Xu: Nanotechnology Center, Research Institute for Intelligent Wearable Systems, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong, China
Yuejiao Chen: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China; Corresponding author.
Libao Chen: State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China; National Energy Metal Resources and New Materials Key Laboratory, Central South University, Changsha 410083, China; Corresponding author. State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China.

Journal volume & issue: Vol. 4, no. 2
p. 100276

Abstract

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The exceptional electrochemical performance of zinc anodes is frequently impeded by inadequate deposition kinetics and interfacial chemistry. Herein, we introduce the stereoisomerism to inform the balanced selection of electrolyte additives, taking into account their solvation and adsorption properties, to achieve the optimal deposition behaviors and electrochemical performance. The three-point coplanar adsorption configuration, in comparison to two-point adsorption, effectively mitigates the interference of water molecules and establishes a coplanar templating effect. This approach fosters a uniform distribution of charges, encourages the preferential orientation growth of (002) planes for uniform zinc deposition. Moreover, an appropriate level of solvation ability can modulate the solvation structure without substantially increasing the de-solvation energy barrier, thereby facilitating faster deposition kinetics than what is observed in cases of strong solvation. As a result, Zn//Zn cell can achieve an excellent performance of more than 3470 h at 2 mA cm−2 and 1 mAh cm−2, and Zn//AC full cell can work for 50000 cycles at 3 A g−1. Additionally, under practical conditions (N/P=4.37), the assembled Zn//I2 full cell demonstrates stable lifespan for 710 cycles at 1 A g−1. This work showcases the interplay between adsorption configuration of stereoisomeric additives on the cycling.

Published in Advanced Powder Materials

ISSN: 2772-834X (Online)
Publisher: KeAi Communications Co. Ltd.
Country of publisher: China
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.keaipublishing.com/en/journals/advanced-powder-materials/

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