用离子液调整凝聚合物电解质的特性,用于使用离子液的离子电池:一篇评论
Agnieszka Gabryelczyk1, Agnieszka Swiderska-Mocek1
1Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Berdychowo 4, Poznan, 60-965, Poland.
Chemistry (Weinheim an der Bergstrasse, Germany)
|February 26, 2024
概括
离子液体通过提高导电性和安全性来增强离子电池电解质. 它们的调节性质,来自于阴离子和离子的选择,是先进的储能应用的关键.
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:
- 离子液体 (ILs) 具有化学,电化学和热稳定性,使其适用于能源应用.
- 尽管存在毒性问题,但ILs可以回收利用,从而在先进的电池技术中实现可持续使用.
- 凝聚合物电解质 (GPEs) 对离子电池至关重要,ILs显著影响其性能.
研究的目的:
- 审查离子液体结构 (/离子) 和凝聚合物电解质特性之间的关系.
- 突出离子液体在提高离子电池性能和安全方面的作用.
- 探索离子液体在新兴离子电池技术中调整GPE的潜力.
主要方法:
- 文献综述侧重于离子电池的凝聚合物电解质中的离子液体.
- 分析离子液体组成如何影响离子导电性和电化学稳定性的分析.
- 评估电池系统中离子液体所带来的安全增强.
主要成果:
- 离子液体,在GPEs中平均占70%的重量,显著影响离子导电性和电化学窗口.
- 在离子液体中选择阴离子和离子,使得凝聚合物电解质具有量身定制的特性.
- 离子液体提高了离子电池的安全特性,这对于固定存储和电动汽车等应用至关重要.
结论:
- 离子液体是开发高性能和安全的离子电池的重要组成部分.
- 了解离子液体中的阴离子-离子相互作用对于优化凝聚合物电解质至关重要.
- 对基于离子液体的GPE的进一步研究可以加速采用离子电池技术.
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
13.0K
08:59Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance
Published on: November 30, 2022
4.5K
相关概念视频
Ionic Strength: Effects on Chemical Equilibria
3.0K
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...
In this solution, the primary...
3.0K
Ionic Association
220
The ionic association is the association of oppositely charged ions in an electrolyte solution to form ion pairs. Bjerrum defined ion pairs as two oppositely charged ions whose electrostatic attraction exceeds the thermal energy of the system, typically expressed as 2kT. Electrostatic attraction depends on ionic charge, separation distance, and the dielectric constant of the medium. Thermal energy, represented by kT, reflects the tendency of ions to move independently due to molecular motion.
220
Theory of Strong Electrolytes
156
The interionic forces of the strong electrolytes depend on the solvent's dielectric constant, which is the ability of a solvent to store electrical energy, based on its polarizability. and the solution's concentration. In high-dielectric solvents and in dilute solutions, weak electrostatic forces keep ions apart. However, in low-dielectric solvents or concentrated solutions, stronger interionic forces may cause ions to pair up as ionic doublets despite being fully ionized. The theory of strong...
156
