材料科学
阳极
锌
电解质
化学工程
水溶液
吸附
电池(电)
电偶阳极
无机化学
冶金
电极
阴极保护
有机化学
化学
物理化学
功率(物理)
物理
量子力学
工程类
作者
Xin Zhang,Lei Tao,Tao Long,Yuankui Cao,Xian‐Xiang Zeng,Qingqing Deng,Bin Liu,Xiongwei Wu,Yuping Wu
标识
DOI:10.1021/acsami.3c06907
摘要
The uncontrolled growth of dendrites and serious side reactions, such as hydrogen evolution and corrosion, significantly hinder the industrial application and development of aqueous zinc-ion batteries (ZIBs). This article presents ovalbumin (OVA) as a multifunctional electrolyte additive for aqueous ZIBs. Experimental characterizations and theoretical calculations reveal that the OVA additive can replace the solvated sheath of recombinant hydrated Zn2+ through the coordination water, preferentially adsorb on the surface of the Zn anode, and construct a high-quality self-healing protective film. Notably, the OVA-based protective film with strong Zn2+ affinity will promote uniform Zn deposition and inhibit side reactions. As a result, Zn||Zn symmetrical batteries in ZnSO4 electrolytes containing OVA achieve a cycle life exceeding 2200 h. Zn||Cu batteries and Zn||MnO2 (2 A g–1) full batteries show excellent cycling stability for 2500 cycles, demonstrating promising application prospects. This study provides insights into utilizing natural protein molecules to modulate the kinetics of Zn2+ diffusion and enhance the stability of the anode interface.
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