相关实验视频

Updated: Jul 23, 2025

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

SiB₁₁ (BO) ₁₂的巨大稳定性:在高压离子电池中作为潜在电解质的含义

Anoop Kumar Kushwaha¹, Sushri Soumya Jena¹, Mihir Ranjan Sahoo¹

¹School of Basic Sciences, Indian Institute of Technology Bhubaneswar, 752050 Khordha, Odisha, India.

Chemphyschem : a European journal of chemical physics and physical chemistry

|July 12, 2023

概括

基于SiB11(BO) 12-的新型无素电解质为高压金属离子电池 (AMIB) 提供了特殊的稳定性和高的运行潜力. 这种先进的电解质显著优于商业选择,为更安全,更有效的储能解决方案铺平了道路.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学
储能储能储能储能储能储能

背景情况:

高压金属离子电池 (AMIB) 需要先进的电解质.
当前的电解质通常面临安全性,成本,稳定性和运行潜力的限制.
迫切需要新型电解质材料来应对这些挑战.

研究的目的:

开发一种新的,无素的,用于AMIBs的高压电解质.
为了研究一种新的基于SiB11(BO) 12的电解质的稳定性和电化学性能.
为了证明这种新电解质在提高电池性能方面的潜力.

主要方法:

合成和表征SiB11(BO)12-离子.
基于MSiB11(BO) 12 (M=Li,Na,K) 的电解质的电化学测试.
评估电化学稳定性窗口,阳极电压极限和离子导电性.

主要成果:

基于SiB11(BO) 12的电解质表现出巨大的稳定性,这是由于弱的π-轨道相互作用和混合结合.
达到极高的垂直脱离能量 (9.95 eV) 和阳极电压极限 (∼10.05 V).
与商业电解质相比,证明了优越的电化学性能和更快的阴离子运动.

结论:

基于SiB11(BO) 12的化合物具有高度稳定性,适用于高压AMIB电解质.
开发的电解质提供了很大的运行潜力和快速的离子导电性.
这项研究为更安全,更高性能的储能设备提供了有希望的进展.

关键词:

在 ab initio 的计算中,酸盐酸盐酸盐集群化合物集群化合物集群化合物电解质的电解质是一种电解质.一个简单的劳动力

更多相关视频

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy

Screening of Coatings for an All-Solid-State Battery Using In Situ Transmission Electron Microscopy

Published on: January 20, 2023

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques

Published on: November 11, 2013

相关概念视频

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 Bonds

Ionic Bonds

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...

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...

Ionic Strength: Effects on Chemical Equilibria

Ionic Strength: Effects on Chemical Equilibria

The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...

Alkali Metals

Alkali Metals

Group 1 elements are soft and shiny metallic solids. They are malleable, ductile, and good conductors of heat and electricity. The melting points of the alkali metals are unusually low for metals and decrease going down the group, while the density increases going down the group with the exception of potassium (Table 1).
Table 1: Properties of the alkali metals

Ionic Strength: Overview

Ionic Strength: Overview

The ionic strength of a solution is a quantitative way of expressing the total electrolyte concentration of a solution. This concept was first introduced in 1921 by two American physical chemists, Gilbert N. Lewis and Merle Randall, while describing the activity coefficient of strong electrolytes. During the calculation of ionic strength (I or μ), all the cations and anions are considered. However, the concentration (c) of an ion with a greater charge number (z) has a greater contribution...