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Manufacturing method for novel flexible thermoelectric element

A technology of thermoelectric elements and manufacturing methods, which is applied in the manufacture/processing of thermoelectric devices, thermoelectric device components, thermoelectric device node lead-out materials, etc., which can solve the problems that cannot be made into flexible thermoelectric devices on a large scale, and achieve energy density High, simple manufacturing process, compact circuit structure

Inactive Publication Date: 2017-10-24
上海萃励电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, currently reported devices made of flexible thermoelectric materials are mainly focused on the thermoelectric performance research of laboratory models. P-type and N-type thermoelectric materials are interconnected through a simple process, and it is not yet possible to use a systematic process to manufacture flexible thermoelectric devices on a large scale.

Method used

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  • Manufacturing method for novel flexible thermoelectric element
  • Manufacturing method for novel flexible thermoelectric element
  • Manufacturing method for novel flexible thermoelectric element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Preparation of carbon material filled poly-3,4 ethylenedioxythiophene: P-type thermoelectric material dispersion slurry of polysulfonated styrene and tungsten carbide filled poly-3,4 ethylenedioxythiophene / polydiallyl di The N-type thermoelectric material dispersion slurry of methyl ammonium chloride is used to print the P-type thermoelectric material slurry and the N-type thermoelectric material slurry on both sides of the flexible polyimide substrate respectively, and the N-type thermoelectric material slurry is obtained after drying And the circuit layer of P-type thermoelectric material, drill a row of through holes at both ends of the flexible insulating substrate, gold-plated in the through holes, and the circuit layers on both sides are connected through the gold-plated through holes at both ends to form an alternate series circuit structure of N-P-N-P... The flexible thermoelectric element is obtained, the front and cross-section are respectively as figure 1 wit...

Embodiment 2

[0023] Prepare Bi 0.5 Sb 1.5 Te 3 P-type thermoelectric material dispersion slurry filled with polyvinylidene fluoride and Bi 2 Te 2.7 Se 0.3 N-type thermoelectric material dispersion slurry filled with polyvinylidene fluoride, printed P-type thermoelectric material slurry and N-type thermoelectric material slurry on both sides of the flexible polyethylene terephthalate substrate by screen printing, and dried Finally, the circuit layers of N-type and P-type thermoelectric materials are respectively obtained, and a row of through holes are drilled at both ends of the flexible insulating substrate, and silver is plated in the through holes, and the circuit layers on both sides are connected through the silver-plated through holes at both ends to form N-P-N-P ... the alternating series circuit structure to obtain flexible thermoelectric elements.

[0024] Dangru Figure 4 When current is passed through the series circuit shown, one side of the flexible substrate can be cool...

Embodiment 3

[0026] Prepare P-type thermoelectric material dispersion slurry filled with carbon nanotubes polyaniline and N-type thermoelectric material dispersion slurry filled with tungsten carbide polyvinylidene fluoride, and use screen printing on both sides of the flexible polybutylene terephthalate substrate Print P-type thermoelectric material slurry and N-type thermoelectric material slurry, and obtain circuit layers of N-type and P-type thermoelectric materials respectively after drying, and drill a row of through holes at both ends of the flexible insulating substrate. Copper plating, the circuit layers on both sides are connected through the copper-plated through-holes at both ends to form an alternating series circuit structure of N-P-N-P..., and a flexible thermoelectric element is obtained.

[0027] When there is a temperature difference between the two ends of the flexible insulating substrate, a potential difference is generated in the alternating series circuit structure, w...

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Abstract

The invention discloses a manufacturing method for a novel flexible thermoelectric element. The method is characterized by comprising respectively printing a P-type thermoelectric material sizing agent and an N-type thermoelectric material sizing agent on two surfaces of a flexible insulating substrate, after the sizing agents are dried, respectively obtaining N-type and P-type thermoelectric material circuit layers, respectively drilling a row of holes on two ends of the flexible insulating substrate, plating metal in the holes, the circuit layers on the two surfaces being connected into an alternative series-connected circuit structure of N-P-N-P, and the like through the holes plated with metal on two ends, to obtain a flexible thermoelectric element. The method is advantaged by compact circuit structure, high energy density, simple manufacturing process, and the element is compatible with a flexible circuit board technology, and can be used to supply power for various wearable devices.

Description

technical field [0001] The invention relates to a method for manufacturing a flexible thermoelectric element, which belongs to the technical field of electronic materials and devices. Background technique [0002] A thermoelectric material is a material that converts thermal energy to electrical energy through the transport of its own carriers (holes or electrons) in a solid state. Due to its small size, no vibration, no noise, no pollution, no wear, no moving parts, maintenance-free, and no pollution, thermoelectric conversion technology has unique advantages in heat energy utilization. Conductive polymers have the advantages of low thermal conductivity, light weight, low cost, easy synthesis and processing, and are a potential thermoelectric material. The common conductive polymers of conjugated polymers mainly include polyaniline (PANi), polypyrrole (PPy), polythiophene (PTh) and their derivatives. Composite thermoelectric materials based on conductive polymers can be p...

Claims

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Application Information

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IPC IPC(8): H01L35/02H01L35/16H01L35/34
CPCH10N10/80H10N10/852H10N10/01
Inventor 汪元元
Owner 上海萃励电子科技有限公司
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