Novel Latent Heat Storage Systems Based on Liquid Metal Matrices with Suspended Phase Change Material Microparticles
Seongeun Kang1, Woochan Kim2, Chimin Song1
1Department of Chemical Engineering, Myongji University, 116 Myongji-ro, Cheoin-gu, Yongin 17058, Gyeonggi-do, Korea.
ACS Applied Materials & Interfaces
|July 21, 2023
Summary
This study introduces a novel composite material combining phase change materials (PCMs) with liquid metal for advanced thermal management. This PCM-in-liquid metal system offers superior heat storage and conductivity for applications like battery thermal management.
Area of Science:
- Materials Science
- Nanotechnology
- Thermal Engineering
Background:
- Phase change materials (PCMs) are crucial for thermal management and energy utilization.
- Developing advanced composites with enhanced thermal and electrical properties is an ongoing challenge.
Purpose of the Study:
- To demonstrate a novel colloidal PCM-in-liquid metal (LM) system as a high-performance composite.
- To investigate the tunable properties and electrothermal performance of this composite for thermal management applications.
Main Methods:
- Formulation of a composite using eutectic Ga-In liquid metal matrix and paraffinic PCM microparticles.
- Stabilization of filler-matrix compatibility using nanosized titania particles.
- Characterization of composite properties including thermal conductivity, electrical conductivity, and latent heat storage.
Main Results:
- The PCM-in-LM composite exhibits excellent latent heat storage, high thermal and electrical conductivities, and tunable viscoelastic properties.
- Simple vortex mixing enabled facile fabrication without complex processing.
- A Joule heating device showed enhanced electrothermal performance due to the composite's synergistic properties.
Conclusions:
- The developed PCM-in-LM composite platform offers a versatile solution for thermal management.
- The system's tunable properties and ease of manufacturing open possibilities for advanced latent heat storage systems.
- Potential applications include battery thermal management and flexible heaters.
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