High-heat-conducting composite phase-transition energy-storage material and its preparing method

A phase change energy storage material and energy storage material technology, applied in the field of composite phase change energy storage material structure and its preparation, can solve the practical application requirements of unfavorable composite phase change energy storage materials, difficult material combination, and low latent heat of phase change and other problems, to achieve the effect of easy popularization and application, good stability and high thermal conductivity

Inactive Publication Date: 2007-03-28
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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  • Application Information

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Problems solved by technology

However, the provided composite phase change energy storage materials have disadvantages such as relatively low phase change latent heat, low thermal conductivity, and difficult comb

Method used

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  • High-heat-conducting composite phase-transition energy-storage material and its preparing method

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specific Embodiment approach 1

[0031] The continuous porous inorganic metal material adopts metal Ni foam, the solid-liquid phase change energy storage material adopts sodium acetate trihydrate, the sealing material adopts epoxy resin, and the composite phase change energy storage material prepared according to the preparation method in the content of the invention absorbs The rate is 74.4%, the energy storage rate can reach 161J / g, the thermal conductivity is higher than 15W / m.K, and the phase transition point is 57°C-59°C.

specific Embodiment approach 2

[0032] The continuous porous inorganic metal material is Ni foam, the solid-liquid phase change energy storage material is sodium phosphate dodecahydrate, the sealing material is epoxy resin, and the composite phase change energy storage material is prepared according to the preparation method in the content of the invention. The adsorption rate is 77.8%, the energy storage rate can reach 179J / g, the thermal conductivity is higher than 15W / m.K, and the phase transition point is 39°C-42°C.

specific Embodiment approach 3

[0033] The continuous porous inorganic metal material is Ni foam, the solid-liquid phase change energy storage material is stearic acid, and the sealing material is epoxy resin. The adsorption rate of the composite phase change energy storage material prepared according to the preparation method in the content of the invention is It is 70.5%, the energy storage rate can reach 110J / g, the thermal conductivity is higher than 15W / m.K, and the phase transition point is 65°C-72°C.

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Abstract

The invention relates to high heat conducting compound phase change energy storage material and the preparing method. The material is compounded by inorganic metal multi-hole consecutive material, phase change energy storage material which is solid-liquid phase change one, and hole sealing material. The preparing method includes the following steps: using inorganic metal multi-hole consecutive material as carrier, solid-liquid phase change energy storage material as functional material; dipping the cleaned carrier into liquid state functional material to make it absorb fully; cooling curing and sealing hole. The material has the features of high heat conducting ratio, easy forming, stable phase change temperature, high chemical stability. The preparing method is economic, convenient, practical, and easy generalization application. The invention can be used in high performance cooling plate making, solar energy storage, waste heat utilizing etc.

Description

technical field [0001] The invention belongs to the technical field of materials, and relates to the structure of a composite phase change energy storage material and its preparation. Background technique [0002] The research on phase change materials as a kind of energy conversion and storage materials began in the 1940s. In 2001, the Annex17 program (advanced phase change energy storage and chemical energy storage technology and materials) launched by the United States further promoted the research in this field. . The working principle of phase change materials is to realize the absorption and release of heat (cold) in the environment through the energy change accompanying the material phase change process, so as to achieve the purpose of energy storage and control of the surrounding environment temperature. In recent years, issues such as the energy crisis and the heat dissipation of precision electronic devices have increasingly become the focus of attention in the wo...

Claims

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Application Information

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IPC IPC(8): C09K5/06
Inventor 邓龙江王守绪翁小龙
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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