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Thermoelectric battery with series-wound electric leg structure

A technology of thermoelectric battery and electric leg, applied in the field of thermoelectric battery, can solve problems such as difficulty in obtaining a large temperature gradient, and achieve the effect of being beneficial to popularization and application

Inactive Publication Date: 2016-06-01
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem: The purpose of this invention is to design a thermoelectric battery with a series electric leg structure that can obtain a large temperature gradient, so as to solve the problem that the traditional thermoelectric battery is difficult to obtain a large temperature gradient, so as to achieve the purpose of optimizing the performance of the thermoelectric battery

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0017] 1. Choose a quartz plate as the substrate;

[0018] 2. Using thermal evaporation method to prepare two bismuth tellurium selenium thermoelectric films with a width of 5 mm and a length of 1 cm on the substrate, with an intermediate distance of 1 cm;

[0019] 3. Use the same method to prepare two bismuth, antimony, tellurium thermoelectric films with a length of 5 mm and a length of 1 cm, with an intermediate distance of 1 cm;

[0020] 4. Prepare the copper film connected to the bismuth-tellurium-selenium film and the copper film connected to the bismuth-antimony-tellurium film by the thermal evaporation method;

[0021] 5. The cold end and hot end electrodes are prepared by the evaporation method.

Embodiment 2

[0022] Example 2 (attached image 3 )

[0023] 1. Select polyimide film as flexible substrate

[0024] 2. Using thermal evaporation method to prepare two bismuth selenide thermoelectric films with a width of 5 mm and a length of 1 cm on the substrate, with an intermediate distance of 1 cm;

[0025] 3. Use the same method to prepare two antimony telluride thermoelectric films with a length of 5 mm and a length of 1 cm, with an intermediate distance of 1 cm;

[0026] 4. Prepare the copper film connected with the bismuth selenide film and the copper film connected with the antimony telluride film by the thermal evaporation method;

[0027] 5. The cold end and hot end electrodes are prepared by the evaporation method.

Embodiment 3

[0029] 1. Choose a quartz plate as the substrate;

[0030] 2. Using molecular beam epitaxy on the substrate to prepare two silicon germanium thermoelectric films with a width of 5 mm and a length of 1 cm, with an intermediate distance of 1 cm;

[0031] 3. The laser flash method is used to prepare two ferrosilicon thermoelectric films with a length of 5 mm and a length of 1 cm, with an intermediate distance of 1 cm;

[0032] 4. Prepare the copper film connected to the silicon-germanium film and the copper film connected to the ferrosilicon film by the thermal evaporation method;

[0033] 5. The cold end and hot end electrodes are prepared by the evaporation method.

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Abstract

The invention relates to a thermoelectric battery with a series-wound electric leg structure. An N type electric leg (1) is connected between a high-temperature-end electrode (31) and a low-temperature-end electrode (32) on a substrate (5); a P type electric leg (2) is connected with the high-temperature-end electrode (31) and another low-temperature-end electrode (32); the thermoelectric materials of the N type electric leg (1) and the P type electric leg (2) are divided into two or more sections, and the sections are connected by metal (4). By adoption of the structure, the distance from the cold end to the hot end of the battery can be effectively prolonged, and the temperature difference between the cold end and the hot end can be increased, so that the performance of the thermoelectric battery is improved consequently; the thermoelectric battery provided by the invention can adjust the lengths of the p type and n type thermal electric legs and the metal according to actual application conditions to change the temperature difference between the cold end and the hot end, so that temperature gradient regulation and control is realized; and compared with the conventional thermoelectric battery, the thermoelectric battery with the series-wound electric leg structure has wider application prospects.

Description

Technical field [0001] The invention relates to a thermoelectric battery containing a series electric leg structure, which can effectively expand the temperature gradient of the thermoelectric leg and is beneficial to the conversion of thermal energy into electric energy. It belongs to the technical field of thermoelectric battery manufacturing. Background technique [0002] Thermoelectric battery refers to a technology that uses thermoelectric materials to directly convert thermal energy into electrical energy. Connect the P type (thermoelectric semiconductor material rich in holes) and the N type (thermoelectric semiconductor material rich in electrons) at one end and place it in a high temperature environment, and lead two electrodes at the other end and place it in a low temperature environment. The thermal excitation effect of the end is strong, so that there is a gradient in the carrier concentration between the high temperature end and the low temperature end. Driven by t...

Claims

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Application Information

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IPC IPC(8): H01L35/32
CPCH10N10/17
Inventor 娄朝刚张玉洁
Owner SOUTHEAST UNIV
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