基于共价有机框架的金属电池固态电解质:从材料到应用
Zexi Di1, Liang He1, Bingqi Li1
1School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212003, China. caohm@just.edu.cn.
Chemical communications (Cambridge, England)
|December 24, 2025
概括
联有机框架 (COFs) 通过增强固态电解质 (SSEs) 对固态金属电池 (SSLMBs) 显示出前景. 研究重点是改善离子导电性和界面稳定性,以获得更安全,高能量密度的电池.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 聚合物化学 聚合物化学
背景情况:
- 固态金属电池 (SSLMB) 提供了更高的安全性和能量密度,但在固态电解质 (SSE) 方面面临着挑战.
- 当前SSE的主要局限性包括低室温离子导电性和差的界面稳定性.
- 联有机框架 (COF) 正因为其有序结构和稳定性而成为SSE的有希望材料.
研究的目的:
- 审查最近在SSLMB固态电解质 (SSEs) 中使用共价有机框架 (COFs) 的进展.
- 突出COF在增强离子导电性,离子转移数和界面稳定性方面的优势.
- 总结改善基于COF的SSE绩效的策略,并概述未来的研究方向.
主要方法:
- 对COF作为单固体电解质和复合固体电解质应用的现有文献的审查.
- 对COF属性的分析,包括孔隙结构,功能组和化学稳定性,与SSE性能相关.
- 确定基于COF的SSEs的材料设计,结构调节和接口工程中的关键策略.
主要成果:
- 在SSEs中,COF在改善离子导电性和离子转移数方面具有显著的潜力.
- COFs促进了单离子导体的构建,并提高了SSLMB的界面稳定性.
- 材料设计,结构调节和接口工程对于优化基于COF的SSE性能至关重要.
结论:
- 基于COF的SSE代表了开发高性能和更安全的SSLMB的有希望的途径.
- 未来的研究应该专注于增强离子导电性,开发可扩展的绿色合成方法,并了解结构-性能关系.
- 对COF的综合多功能设计对于实现先进的SSLMB应用程序至关重要.
更多相关视频
11:04Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
13.4K
10:03Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
26.0K
相关概念视频
02:48Ionic Bonding and Electron Transfer
48.4K
Ions are atoms or molecules bearing an electrical charge. A cation (a positive ion) forms when a neutral atom loses one or more electrons from its valence shell, and an anion (a negative ion) forms when a neutral atom gains one or more electrons in its valence shell. Compounds composed of ions are called ionic compounds (or salts), and their constituent ions are held together by ionic bonds: electrostatic forces of attraction between oppositely charged cations and anions.
48.4K
04:02Weak Acid Solutions
41.9K
Few compounds act as strong acids. A far greater number of compounds behave as weak acids and only partially react with water, leaving a large majority of dissolved molecules in their original form and generating a relatively small amount of hydronium ions. Weak acids are commonly encountered in nature, being the substances partly responsible for the tangy taste of citrus fruits, the stinging sensation of insect bites, and the unpleasant smells associated with body odor. A familiar example of a...
41.9K
03:45Formation of Complex Ions
25.5K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
25.5K
03:12Batteries and Fuel Cells
30.6K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
30.6K
00:42Ionic Bonds
127.3K
Overview
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
Opposing Charges Hold Ions Together in Ionic Compounds
Ionic bonds are reversible electrostatic interactions between ions...
127.3K
02:54Molecular and Ionic Solids
19.8K
Crystalline solids are divided into four types: molecular, ionic, metallic, and covalent network based on the type of constituent units and their interparticle interactions.
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
Molecular Solids
Molecular crystalline solids, such as ice, sucrose (table sugar), and iodine, are solids that are composed of neutral molecules as their constituent units. These molecules are held together by weak intermolecular forces such as London dispersion forces, dipole-dipole interactions, or hydrogen bonds, which...
19.8K