相关实验视频

Updated: Jan 17, 2026

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

Published on: March 24, 2018

在基于MOF的固态电解质中增强低温离子导电性,通过量身定制的-合物纳入晶体框架

Lu Shi¹, Xin Wang¹, Zhiliang Liu¹

¹Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P.R. China.

|September 18, 2025

概括

研究人员开发了化MOF-808固态电解质 (SSEs),用于在寒冷气候下稳定的固态电池 (SSLB) 运行. 这些材料增强了离子运输和低温下状的抑制.

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
储能储能储能储能储能储能

背景情况:

固态电解质 (SSEs) 在低温下稳定运行对于寒冷气候中的固态电池 (SSLB) 至关重要.
关于SSEs在零下条件下有效执行的文献有限.

研究的目的:

为应对SSLB中低温SSE性能所面临的挑战.
通过分子水平化工程开发新的SSE.
为了提高SSEs在低温下的离子导电性和稳定性.

主要方法:

使用化碳氧酸合理构建化MOF-808 (MOF-808-xF,x=3,5,7).使用化碳氧酸.
在分子水平上进行化工程,以调节通道表面环境.
离子导电性,Li+转移数,电化学窗口和在低温下循环稳定的表征.

主要成果:

优化的MOF-808-5F在-40°C下表现出高离子导电性 (1.25 × 10^-4 S cm^-1) 和Li+转移数 (0.58).
在1000小时内实现了广泛的电化学窗口 (5.4V) 和稳定的涂/剥离.
化MOF-808促进了LiF固体电解质间相 (SEI) 的形成,并抑制了Li树突.

结论:

在MOF-808中量身定制的基合物整合提高了在低温下SSE的性能.
化MOF-808作为SSLB在寒冷环境中的稳定电解质具有前景.
这项工作为设计低温电解质用于先进的能量存储提供了洞察力.

关键词:

用修改的MOFs使用.离子导电性的离子导电性.低温低温的低温是一个问题.固态电解质固态电解质固态电池固态电池

更多相关视频

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature

Published on: December 20, 2016

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

相关概念视频

Molecular and Ionic Solids

Molecular and Ionic Solids

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...

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory - Octahedral Complexes

Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...

Ionic Bonding and Electron Transfer

Ionic Bonding and Electron Transfer

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.

Ionic Crystal Structures

Ionic Crystal Structures

Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...