构建供体-受体连接的 COFs 电解质以调节准固态电池中的电子密度并加速 Li+ 迁移

IF 26.6 1区材料科学 Q1 Engineering

Nano-Micro Letters Pub Date : 2024-09-26 DOI:10.1007/s40820-024-01509-y

Genfu Zhao, Hang Ma, Conghui Zhang, Yongxin Yang, Shuyuan Yu, Haiye Zhu, Yongjiang Sun, Hong Guo

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引用次数: 0

摘要

基于供体-受体连接的共价有机框架（COF）电解质不仅可以实现高选择性的Li+传导，而且为理解电子密度在准固态金属锂电池中的作用提供了重要机会。采用原位表征、密度泛函理论计算和飞行时间二次离子质谱法阐述了 "供体-受体 "电解质体系中 Li+ 快速迁移的机理。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Constructing Donor–Acceptor-Linked COFs Electrolytes to Regulate Electron Density and Accelerate the Li+ Migration in Quasi-Solid-State Battery

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Constructing Donor–Acceptor-Linked COFs Electrolytes to Regulate Electron Density and Accelerate the Li+ Migration in Quasi-Solid-State Battery

Highlights

Donor–acceptor-linked covalent organic framework (COF)-based electrolyte can not only fulfill highly-selective Li⁺ conduction, but also offer a crucial opportunity to understand the role of electronic density in quasi-solid-state Li metal batteries.
Donor–acceptor-linked COF electrolyte results in Li⁺ transference number 0.83, high ionic conductivity 6.7 × 10^–4 S cm⁻¹ and excellent cyclic ability in Li metal batteries.
In situ characterizations, density functional theory calculation and time-of-flight secondary ion mass spectrometry are adopted to expound the mechanism of the rapid migration of Li⁺ in the “donor–acceptor” electrolyte system.

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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.