Amino Acid-Induced Interface Charge Engineering Enables Highly Reversible Zn Anode |
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Authors: | Haotian Lu Xuanlin Zhang Minghe Luo Keshuang Cao Yunhao Lu Ben Bin Xu Hongge Pan Kai Tao Yinzhu Jiang |
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Affiliation: | 1. School of Materials Science and Engineering, State Key Laboratory of Clean Energy Utilization, ZJU-Hangzhou Global Scientific and Technological Innovation Centre, Zhejiang University, Hangzhou, 310027 China;2. Zhejiang Province Key Laboratory of Quantum Technology and Device, Department of Physics, Zhejiang University, Hangzhou, 310027 China;3. Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST UK;4. Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021 China;5. State Key Laboratory of Fluid Power and Mechatronic Systems & Key Laboratory of Advanced Manufacturing Engineering of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027 China |
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Abstract: | Despite the impressive merits of low-cost and high-safety electrochemical energy storage for aqueous zinc ion batteries, researchers have long struggled against the unresolved issues of dendrite growth and the side reactions of zinc metal anodes. Herein, a new strategy of zinc-electrolyte interface charge engineering induced by amino acid additives is demonstrated for highly reversible zinc plating/stripping. Through electrostatic preferential absorption of positively charged arginine molecules on the surface of the zinc metal anode, a self-adaptive zinc-electrolyte interface is established for the inhibition of water adsorption/hydrogen evolution and the guidance of uniform zinc deposition. Consequently, an ultra-long stable cycling up to 2200 h at a high current density of 5 mA cm−2 is achieved under an areal capacity of 4 mAh cm−2. Even cycled at an ultra-high current density of 10 mA cm−2, 900 h-long stable cycling is still demonstrated, demonstrating the reliable self-adaptive feature of the zinc-electrolyte interface. This work provides a new perspective of interface charge engineering in realizing highly reversible bulk zinc anode that can prompt its practical application in aqueous rechargeable zinc batteries. |
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Keywords: | amino acid additives aqueous rechargeable zinc batteries cycling stability interface charge engineering zinc anodes |
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