Screening Anionic Groups Within Zwitterionic Additives for Eliminating Hydrogen Evolution and Dendrites in Aqueous Zinc Ion Batteries.

IF 36.3 1区材料科学 Q1 Engineering

Nano-Micro Letters Pub Date : 2025-06-26 DOI:10.1007/s40820-025-01826-w

Biao Wang,Chaohong Guan,Qing Zhou,Yiqing Wang,Yutong Zhu,Haifeng Bian,Zhou Chen,Shuangbin Zhang,Xiao Tan,Bin Luo,Shaochun Tang,Xiangkang Meng,Cheng Zhang

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引用次数: 0

Abstract

Zwitterionic materials with covalently tethered cations and anions have great potential as electrolyte additives for aqueous Zn-ion batteries (AZIBs) owing to their appealing intrinsic characteristics and merits. However, the impact of cationic and anionic moieties within zwitterions on enhancing the performance of AZIBs remains poorly understood. Herein, three zwitterions, namely carboxybetaine methacrylate (CBMA), sulfobetaine methacrylate (SBMA), and 2-methacryloyloxyethyl phosphorylcholine (MPC), were selected as additives to investigate their different action mechanisms in AZIBs. All three zwitterions have the same quaternary ammonium as the positively charged group, but having different negatively charged segments, i.e., carboxylate, sulfonate, and phosphate for CBMA, SBMA, and MPC, respectively. By systematical electrochemical analysis, these zwitterions all contribute to enhanced cycling life of Zn anode, with MPC having the most pronounced effect, which can be attributed to the synergistic effect of positively quaternary ammonium group and unique negatively phosphate groups. As a result, the Zn//Zn cell with MPC as additive in ZnSO4 electrolyte exhibits an ultralong lifespan over 5000 h. This work proposes new insights to the future development of multifunctional zwitterionic additives for remarkably stable AZIBs.

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筛选两性离子添加剂中的阴离子基团以消除水锌离子电池中的析氢和枝晶。

阳离子和阴离子共价拴系的两性离子材料由于其固有的特性和优点，在作为水性锌离子电池（AZIBs）电解质添加剂方面具有很大的潜力。然而，两性离子中正离子和阴离子部分对增强azib性能的影响仍然知之甚少。本文以甲基丙烯酸羧甜菜碱（CBMA）、甲基丙烯酸亚砜甜菜碱（SBMA）和2-甲基丙烯酰氧乙基磷酸胆碱（MPC）三种两性离子为添加剂，研究了它们在AZIBs中的不同作用机制。这三种两性离子与带正电的基团具有相同的季铵，但具有不同的带负电段，即CBMA、SBMA和MPC分别为羧酸盐、磺酸盐和磷酸盐。通过系统的电化学分析，这些两性离子都有助于提高Zn阳极的循环寿命，其中MPC的作用最为显著，这可能是由于正季铵基团和独特的负磷酸基团的协同作用。结果表明，以MPC为添加剂的锌/锌电池在ZnSO4电解质中表现出超过5000 h的超长寿命。这项工作为未来开发多功能两性离子添加剂以获得非常稳定的AZIBs提供了新的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.