Thermal energy storage (TES) materials are intended to rapidly absorb and release heat to balance thermal transients. This improves device or component reliability, reduces the scale of other thermal components necessary to reject heat at peak heat generation rates, and can allow for useful capture and reutilization of low-quality heat, improving overall system efficiencies. The key challenges in this area are demonstrating high energy storage density and high cooling power densities in stable, reversible systems. We have demonstrated a number of important achievements in this area:
- High cooling-power thermal composites from incompatible materials (graphitic foam, salt hydrate) through use of surfactants.
- Material-specific nucleation catalysts identified through integrated computational database screening approaches, resulting in significant decrease in subcooling in multiple salt hydrate systems.
- Characterize and predict thermophysical properties of novel high energy density phase change material
- Derive “cooling power figure of merit” (FOM_q) from analytical solutions to Stefan’s problem. Allows for intelligent materials design and side-by-side comparizon of different materials with different thermophysical properties
Applications: Electronics, Aviation/Automotive, Batteries, Oil & Gas, Building/Construction, Home Appliance
- K. Yazawa, P.J. Shamberger, T. Fisher. Ragone Relations for Thermal Energy Storage Technologies, Frontiers in Mech. Eng., 5, 29 (2019). doi: 10.3389/fmech.2019.00029
- E. Emmons*, P.J. Shamberger. Corrosive Effect of Lithium Nitrate Trihydrate on Common Heat Exchanger Materials, Materials and Corrosion, 1-11 (2018). doi: 10.1002/maco.201810557
- Shamberger, P.J., T. Fisher. Cooling Power and Characteristic Times of Composite Heatsinks and Insulants, Int. J. Heat Mass Transfer, 117, 1205-1215 (2018). doi: 10.1016/j.ijheatmasstransfer.2017.10.085
- Shamberger, P.J., Y. Mizuno, A. Talapatra. Mixing and Electronic Entropy Contributions to Thermal Energy Storage in Low Melting Point Alloys, J. Appl. Phys., 122(2), 025105 (2017). doi: 10.1063/1.4990984
- Karimineghlani, P., E. Emmons, M. Green, P.J. Shamberger, and S. Sukhishvili. A Temperature-Responsive Polymer Matrix for Controlling Fluidity of an Inorganic Phase Change Material, J. Mater. Chem. A, 5(2), 12474-12482 (2017). doi: 10.1039/C7TA02897K
- Shamberger, P.J., M. O’Malley. Heterogeneous Nucleation of Thermal Storage Material LiNO3•3H2O from Stable Lattice-Matched Nucleation Catalysts, Acta Materialia, 84, 265-274 (2015). doi: 10.1016/j.actamat.2014.10.051