亲核细胞
阳极
电解质
溶剂化
化学
分子
吸附
水溶液
生物分子
苯丙氨酸
组合化学
相间
化学工程
无机化学
电极
材料科学
有机化学
纳米技术
氨基酸
催化作用
物理化学
生物化学
生物
工程类
遗传学
作者
Anbin Zhou,Huirong Wang,Fengling Zhang,Xin Hu,Zhihang Song,Yi Chen,Yongxin Huang,Yanhua Cui,Yixiu Cui,Li Li,Feng Wu,Renjie Chen
标识
DOI:10.1007/s40820-024-01380-x
摘要
Abstract Aqueous Zn 2+ -ion batteries (AZIBs), recognized for their high security, reliability, and cost efficiency, have garnered considerable attention. However, the prevalent issues of dendrite growth and parasitic reactions at the Zn electrode interface significantly impede their practical application. In this study, we introduced a ubiquitous biomolecule of phenylalanine (Phe) into the electrolyte as a multifunctional additive to improve the reversibility of the Zn anode. Leveraging its exceptional nucleophilic characteristics, Phe molecules tend to coordinate with Zn 2+ ions for optimizing the solvation environment. Simultaneously, the distinctive lipophilicity of aromatic amino acids empowers Phe with a higher adsorption energy, enabling the construction of a multifunctional protective interphase. The hydrophobic benzene ring ligands act as cleaners for repelling H 2 O molecules, while the hydrophilic hydroxyl and carboxyl groups attract Zn 2+ ions for homogenizing Zn 2+ flux. Moreover, the preferential reduction of Phe molecules prior to H 2 O facilitates the in situ formation of an organic–inorganic hybrid solid electrolyte interphase, enhancing the interfacial stability of the Zn anode. Consequently, Zn||Zn cells display improved reversibility, achieving an extended cycle life of 5250 h. Additionally, Zn||LMO full cells exhibit enhanced cyclability of retaining 77.3% capacity after 300 cycles, demonstrating substantial potential in advancing the commercialization of AZIBs.
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