Carbon nano fiber/ copper composite material and application thereof in thermal battery energy conversion device

A carbon nanofiber, composite material technology, applied in the manufacture/processing of thermoelectric devices, thermoelectric devices that only use the Peltier or Seebeck effect, etc., can solve problems such as application limitations, complex equipment systems, etc.

Active Publication Date: 2016-06-29
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method can greatly reduce the cost of solar power generation and improve the conversion efficiency of solar energy, it often requires complex equipment systems, which greatly limits the application occasions.

Method used

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  • Carbon nano fiber/ copper composite material and application thereof in thermal battery energy conversion device
  • Carbon nano fiber/ copper composite material and application thereof in thermal battery energy conversion device
  • Carbon nano fiber/ copper composite material and application thereof in thermal battery energy conversion device

Examples

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Embodiment 1

[0036] The preparation process of the carbon nanofiber / copper composite material in this embodiment is as follows:

[0037] (1) Coating photoresist on one side surface of the copper base layer to form a pattern with a groove structure, and then in 1mol / L FeCl 3 Etching in the solution for 5 minutes to form a copper base layer with a groove structure on one side of the surface; the distance between the grooves is 20-30 μm, and the groove is about 8 μm.

[0038] (2) In an air atmosphere, heat the copper substrate with a groove structure to 485° C. for 20 minutes to roughen the part of the surface of the copper substrate layer that is not protected by photoresist, with a roughness of 3 to 7 μm;

[0039] (3) Remove the photoresist from the roughened copper base layer and place it in a CVD reaction chamber to grow nanowires. The growth conditions are: air pressure 500mbar, temperature 250°C, and growth time 15 minutes; The device is evacuated to 1 x 10 -2 mbar, the temperature wa...

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Abstract

The invention discloses a carbon nano fiber/ copper composite material and application thereof in a thermal battery energy conversion device. Firstly, the surface of a copper sheet is polished to obtain a copper sheet material with a high specific surface, so that carbon nano fibers can be in well contact with copper and heat conduction is facilitated; and then carbon nano fibers are grown on the surface of copper to obtain the carbon nano fiber/ copper sheet composite material. The carbon nano fibers grown by the method have very high absorption within nearly full sunlight bands, and can convert solar radiation energy into thermal energy; the copper substrate has good heat conductivity, and can quickly conduct the heat absorbed by the carbon nano fibers to a semiconductor thermoelectric material of a thermal battery, to integrate a solar energy-thermal battery device, thus realizing efficient solar energy-electric energy conversion. The composite material has good industrial application prospect and basic science research value.

Description

technical field [0001] The invention relates to the technical field of composite material preparation and energy conversion devices for thermal batteries, in particular to a carbon nanofiber / copper composite material and its application as a thermal battery energy conversion device. Background technique [0002] In recent years, as the imbalance between energy supply and economic development has become prominent, the energy crisis and environmental pollution have become increasingly serious worldwide. "Energy saving and carbon reduction" and the search for clean energy technologies are issues of concern to all countries today. Solar energy is a kind of clean and renewable energy, which has been widely used in people's daily life and work and has become an ideal energy choice. This first requires the conversion of solar energy into electrical or thermal energy, ie photovoltaic and photothermal solar conversion. [0003] Traditional photothermal solar power generation refers ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L35/32H01L35/34
Inventor 姜辛庄昊邰凯平邱建航黄楠
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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