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Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
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Novel protic ionic liquids-based phase change materials for high performance thermal energy storage systems
Masumeh Mokhtarpour1, Ali Rostami2, Hemayat Shekaari1
1Department of Physical Chemistry, University of Tabriz, Tabriz, Iran.
Scientific Reports
|November 3, 2023
Summary
New ionic liquids (ILs) function as eco-friendly phase change materials (PCMs) for thermal energy storage (TES). These novel PCMs efficiently store solar and waste heat, offering safe and affordable thermal management solutions.
Area of Science:
- Materials Science
- Chemical Engineering
- Sustainable Energy
Background:
- Phase Change Materials (PCMs) are crucial for thermal energy storage (TES), enhancing solar energy utilization and waste heat recovery.
- Ionic Liquids (ILs) offer a promising avenue for developing environmentally friendly and efficient PCMs.
- Ethanolamine and fatty acid-based ILs are explored for their potential in TES applications.
Purpose of the Study:
- To introduce novel ionic liquids as phase change materials for thermal energy storage.
- To evaluate the performance and characteristics of synthesized ILs within the 30-100 °C temperature range.
- To demonstrate the conversion of thermal energy into electrical energy using these novel PCMs.
Main Methods:
- Synthesis and characterization of 2-hydroxyethylammonium, bis(2-hydroxyethyl)ammonium, and tris(2-hydroxyethyl)ammonium palmitate ILs.
- Fourier Transform Infrared Spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM) for chemical and microstructural analysis.
- Differential Scanning Calorimetry (DSC) for thermal properties (latent heat, specific heat capacity) and Thermogravimetric Analysis (TGA) for thermal stability.
Main Results:
- The synthesized ILs demonstrated functionality as PCMs in the 30-100 °C range.
- FT-IR and SEM confirmed the chemical composition and microstructure of the ILs.
- DSC and TGA provided data on thermal properties and stability, crucial for TES applications.
- A prototype device successfully converted thermal energy into electrical energy using the synthesized ILs.
Conclusions:
- Novel ethanolamine and fatty acid-based ionic liquids have been successfully synthesized and characterized as phase change materials.
- These ILs offer a safe, affordable, and environmentally friendly alternative for thermal energy storage systems.
- The study validates the potential of these ILs for efficient thermal energy conversion and storage.
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