实现宽温度和电压窗口的共晶电解质锌金属电池

IF 30.8 1区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Xue Bai, Mingzi Sun, Jun Yang, Bijian Deng, Kai Yang, Bolong Huang, Weiguo Hu and Xiong Pu
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引用次数: 0

摘要

锌金属电池(ZMB)是一种极具潜力的大规模储能应用设备。然而,常用的水性电解质通常会导致氢演化、温度范围狭窄和枝晶生长等问题,严重限制了锌金属电池的电化学和热窗口。在此,我们报告了一种不易燃的深共晶电解质(DEE),它具有较宽的电化学窗口(3.0 V vs. Zn/Zn2+)和热稳定性窗口(-70~160 °C)。得益于这些特性,DEE 有助于促进小而紧凑的 Zn 成核,消除氢演化,并生成稳健的有机-无机耦合固态电解质相,从而在 Zn-Zn 对称电池和 Zn-V2O5 电池中实现持续的 Zn 镀层/剥离性能。更重要的是,DEE 使 ZMB 能够在 -20 至 80 °C 的宽温度范围内循环使用,在高温范围内超过了大多数水性电解质。此外,我们还证明了 DEE 在使用 Zn 离子电容器的高压电池中的潜力,其循环电压可达 2.5 V。我们的研究结果为有机配位环境中的锌电镀/剥离化学提供了深刻的理解,并提供了一种具有宽温度和电化学窗口的实用稳定电解质。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Eutectic-electrolyte-enabled zinc metal batteries towards wide temperature and voltage windows†

Eutectic-electrolyte-enabled zinc metal batteries towards wide temperature and voltage windows†

Zinc metal batteries (ZMBs) are highly promising devices for large-scale energy storage applications. However, the commonly used aqueous electrolyte often leads to issues such as hydrogen evolution, narrow temperature range, and dendrite growth, significantly limiting electrochemical and thermal windows of ZMBs. Here, we report a nonflammable deep eutectic electrolyte (DEE), achieving wide electrochemical (3.0 V vs. Zn/Zn2+) and thermal-stability (−70 °C to 160 °C) windows. Benefiting from these characteristics, DEE contributes to promoting the small and compact Zn nucleation, eliminating hydrogen evolution, and generating a robust organic–inorganic-coupled solid–electrolyte interphase, reaching sustained Zn plating/stripping performance in Zn–Zn symmetric cells and Zn–V2O5 cells. More importantly, DEE enables ZMBs to be cycled in a wide temperature range of −20 °C to 80 °C, exceeding most aqueous electrolytes in high-temperature range. Furthermore, we demonstrate the potential of DEE for high-voltage cells with Zn-ion capacitors cycled up to 2.5 V. Our findings provide insightful understandings of the Zn plating/stripping chemistry in organic coordination environments and a practical stable electrolyte with wide temperature and electrochemical windows.

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来源期刊
Energy & Environmental Science
Energy & Environmental Science 化学-工程:化工
CiteScore
50.50
自引率
2.20%
发文量
349
审稿时长
2.2 months
期刊介绍: Energy & Environmental Science, a peer-reviewed scientific journal, publishes original research and review articles covering interdisciplinary topics in the (bio)chemical and (bio)physical sciences, as well as chemical engineering disciplines. Published monthly by the Royal Society of Chemistry (RSC), a not-for-profit publisher, Energy & Environmental Science is recognized as a leading journal. It boasts an impressive impact factor of 8.500 as of 2009, ranking 8th among 140 journals in the category "Chemistry, Multidisciplinary," second among 71 journals in "Energy & Fuels," second among 128 journals in "Engineering, Chemical," and first among 181 scientific journals in "Environmental Sciences." Energy & Environmental Science publishes various types of articles, including Research Papers (original scientific work), Review Articles, Perspectives, and Minireviews (feature review-type articles of broad interest), Communications (original scientific work of an urgent nature), Opinions (personal, often speculative viewpoints or hypotheses on current topics), and Analysis Articles (in-depth examination of energy-related issues).
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