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https://hdl.handle.net/2440/139502
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Type: | Journal article |
Title: | Manipulating the Solvation Structure and Interface via a Bio-Based Green Additive for Highly Stable Zn Metal Anode |
Author: | Wang, Y. Zeng, X. Huang, H. Xie, D. Sun, J. Zhao, J. Rui, Y. Wang, J. Yuwono, J.A. Mao, J. |
Citation: | Small Methods, 2023; e2300804-1-e2300804-9 |
Publisher: | Wiley |
Issue Date: | 2023 |
ISSN: | 2366-9608 2366-9608 |
Statement of Responsibility: | Yan Wang, Xiaohui Zeng, Haiji Huang, Dongmei Xie, Jianyang Sun, Jiachang Zhao, Yichuan Rui, Jinguo Wang, Jodie A. Yuwono, and Jianfeng Mao |
Abstract: | The practical application of aqueous zinc-ion batteries (AZIBs) is limited by serious side reactions, such as the hydrogen evolution reaction and Zn dendrite growth. Here, the study proposes a novel adoption of a biodegradable electrolyte additive, γ-Valerolactone (GVL), with only 1 vol.% addition (GVL-to-H2 O volume ratio) to enable a stable Zn metal anode. The combination of experimental characterizations and theoretical calculations verifies that the green GVL additive can competitively engage the solvated structure of Zn2+ via replacing a H2 O molecule from [Zn(H2 O)6 ]2+ , which can efficiently reduce the reactivity of water and inhibit the subsequent side reactions. Additionally, GVL molecules are preferentially adsorbed on the surface of Zn to regulate the uniform Zn deposition and suppress the Zn dendrite growth. Consequently, the Zn anode exhibits boosted stability with ultralong cycle lifespan (over 3500 h) and high reversibility with 99.69% Coulombic efficiency. The Zn||MnO2 full batteries with ZnSO4 -GVL electrolyte show a high capacity of 219 mAh g-1 at 0.5 A g-1 and improved capacity retention of 78% after 550 cycles. This work provides inspiration on bio-based electrolyte additives for aqueous battery chemistry and promotes the practical application of AZIBs. |
Keywords: | aqueous Zn-ion batteries (AZIBs) electrolyte additives interfaces solvation structures zinc dendrite Zn metal anodes |
Rights: | © 2023 The Authors. Small Methods published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. |
DOI: | 10.1002/smtd.202300804 |
Grant ID: | http://purl.org/au-research/grants/arc/DP200101862 |
Published version: | http://dx.doi.org/10.1002/smtd.202300804 |
Appears in Collections: | Chemical Engineering publications |
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File | Description | Size | Format | |
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hdl_139502.pdf | Published version | 3.03 MB | Adobe PDF | View/Open |
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