A kind of inorganic phase change energy storage material and preparation method thereof
An energy storage material and inorganic phase change technology, applied in the field of phase change energy storage, can solve the problems of supercooling, phase separation and low heat conduction efficiency, achieve excellent heat conduction performance, ensure stability, and have a wide range of application prospects
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0026] 1) Weigh the energy storage matrix material (CaCl 2 ·6H 2 O) 95 parts, nucleating agent (SrCl 2 ·6H 2 O) 3.0 parts, heat and stir under sealed conditions (40-50°C) until completely melted;
[0027] 2) Add 1.0 parts of surfactant (sodium dodecylbenzene sulfonate, SDBS) to it after melting, and disperse ultrasonically for 30 minutes to form a stable emulsion;
[0028] 3) Add 1.0 parts of functional additive (oxidized expanded graphite produced by modified Hummer method, EGO) into the stable emulsion, and stir for 30 minutes to obtain an inorganic phase change energy storage material;
[0029] 4) The obtained phase change energy storage material is poured into a container for packaging test.
[0030] Test Results:
[0031] The supercooling degree is 0.6°C;
[0032] The thermal conductivity is 1.832W / m K;
[0033] The latent heat value of phase change is 174.51J / g.
Embodiment 2
[0035] 1) Weigh 94 parts of energy storage matrix material (eutectic salt of calcium chloride hexahydrate and magnesium chloride hexahydrate) and 3.5 parts of nucleating agent (strontium carbonate) in proportion, heat and stir under sealed conditions (40-50°C) , until completely melted;
[0036] 2) Add 1.5 parts of surfactant (hexadecyltrimethylammonium bromide) to it after melting, and ultrasonically disperse for 30 minutes to form a stable emulsion;
[0037] 3) Add 1.0 parts of functional additive (oxidized expanded graphite produced by modified Hummer method, EGO) into the stable emulsion, and stir for 30 minutes to obtain an inorganic phase change energy storage material;
[0038] 4) The obtained phase change energy storage material is poured into a container for packaging test.
[0039] Test Results:
[0040] The supercooling degree is 1.0°C;
[0041] The thermal conductivity is 2.017W / m K;
[0042] The latent heat value of phase change is 109.76J / g.
Embodiment 3
[0044] 1) Weigh 97 parts of energy storage matrix material (eutectic salt of calcium chloride hexahydrate and calcium nitrate tetrahydrate) and 2.0 parts of nucleating agent (borax) in proportion, heat and stir under sealed conditions (40-50°C) , until completely melted;
[0045] 2) Add 0.8 parts of surfactant (sodium dodecyl sulfonate) to it after melting, and ultrasonically disperse for 30 minutes to form a stable emulsion;
[0046] 3) Add 0.2 parts of functional additives (oxidized expanded graphite produced by ordinary oxidation method, EGO) into the stable emulsion, and stir for 30 minutes to obtain an inorganic phase change energy storage material;
[0047] 4) The obtained phase change energy storage material is poured into a container for packaging test.
[0048] Test Results:
[0049] The supercooling degree is 1.3°C;
[0050] The thermal conductivity is 0.743W / m K;
[0051] The latent heat value of phase change is 117.42J / g.
PUM
Property | Measurement | Unit |
---|---|---|
phase transition temperature | aaaaa | aaaaa |
phase transition enthalpy | aaaaa | aaaaa |
phase transition enthalpy | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com