Yissum - Research Development Company of the Hebrew University

Core Shell Phase Change Materials for Energy Management

Posted by Yissum - Research Development Company of the Hebrew UniversityResponsive · Innovative Products and Technologies · Israel

Summary of the technology

Cluster2
Phase change materials are a class of materials that buffer thermal energy by undergoing a phase transition between a liquid and solid (and vice versa). The inventors here disclose a new implementation to obtain organic microcapsules with an inorganic shell
Keywords: phase change materials, energy storage, building, smart materials, smart buildings, coatings
Project ID : 9-2018-4572

Description of the technology

Categories

Cleantech, Environment, Chemistry and Materials

Keywords

Green, energy storage, advanced materials,phase change materials, energy storage, building, smart materials, smart buildings, coatings

Technology Readiness Level

4- Technology validated in lab

The Application

Phase change materials (PCMs) are a class of materials that buffer thermal energy by undergoing a phase transition between a liquid and solid (and vice versa) to modulate external temperature variations. PCMs typically have an organic core with a transition temperature designed to match the set point of the desired system which above this point absorbs latent heat and below releases it. PCM materials already are available in products offered by the building and energy industry. In buildings, PCMs are added to paints and general coatings to moderate temperature fluctuations as well as to reduce energy demand by buffering the heat transfer of standard building materials.

Our Technology

We propose an effective, simple and core-agnostic technique to obtain hermetically closed thin shells surrounding the organic core. In such a scenario, the outer shell does not melt at the respective operating temperatures and therefore prevents coalescence of microcapsules or leakage of the active PCM. Preliminary data also has indicated improvement across a range of physical parameters.

Our Innovation

  • A process to coat organic microcapsules in near ambient conditions in an aqueous solution
  • Stable coating is impervious to organic solvents and microcapsules demonstrate improved thermal conductivity, fire retardation, and compatibility with inorganic matrices
  • Allows addition of additives to the core without risk of leakage
  • Treatment solution and precursors are competitive

The Opportunity

PCMs have found wide use in different industries, where they offer value in heat recovery, energy efficiency, heat storage, transport, and more. PCMs in general are of immense interest now to electrical utilities, particularly those involved in renewables (wind and sun are carbon-free but intermittent energy sources) as a method to store latent heat for prolonged periods of time. This coating technology can bring a strong differentiator with premium performance to a field with very narrow distinction between competing vendors.

Researcher Information:http://chem.ch.huji.ac.il/ovadia/

Project manager

Matt Zarek
SCOUTING, IDEATION, AND TECHNOLOGY EVALUATION

Project researchers

Ovadia Lev
HUJI, Faculty of Science
The Institute of Chemistry

Related keywords

  • Clean Industrial Technologies
  • Other (uncategorised)
  • Chemistry & Materials
  • energy

About Yissum - Research Development Company of the Hebrew University

Technology Transfer Office from Israel

Yissum Research Development Company of the Hebrew University of Jerusalem Ltd. Founded in 1964 to protect and commercialize the Hebrew University’s intellectual property. Ranked among the top technology transfer companies, Yissum has registered over 8,900 patents covering 2,500 inventions; has licensed out 800 technologies and has spun-off 90 companies. Products that are based on Hebrew University technologies and were commercialized by Yissum generate today over $2 Billion in annual sales.

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