Preparation methods for thermoelectric colloid material and thermoelectric device, and product

A thermoelectric device and colloidal material technology, which is applied in the manufacture/processing of thermoelectric devices, thermoelectric devices, and thermoelectric device junction lead wire materials, etc., can solve the problems of difficult encapsulation and integration of thermoelectrochemical devices, and achieve the effect of easy encapsulation

Inactive Publication Date: 2017-01-04
HUAZHONG UNIV OF SCI & TECH
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provide

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation methods for thermoelectric colloid material and thermoelectric device, and product
  • Preparation methods for thermoelectric colloid material and thermoelectric device, and product
  • Preparation methods for thermoelectric colloid material and thermoelectric device, and product

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example 1

[0033] The thermoelectric colloid preparation method provided by embodiment 1 comprises the following steps:

[0034] (1) Dissolve 4 g of polymer powder in 40 mL of water at 80 °C to obtain a clear polymer solution;

[0035] (2) When the above polymer solution is clear, add 10 mL of 0.1 M FeCl at a rate of 0.1 mL / s 2 / FeCl 3 (Containing 1 mL of HCl to prevent hydrolysis) was slowly added to the above-mentioned clear polymer solution, and stirred uniformly at a stirring speed of 200 rpm to obtain PVA-FeCl 2 / FeCl 3 colloid;

[0036] (3) The above-mentioned PVA-FeCl2 / FeCl3 colloid is solidified by using a mold to form a cylindrical colloid with a diameter of 3mm and a thickness of 1mm.

[0037] The thermoelectric colloid prepared in Example 1 was encapsulated between two chrome-gold electrodes using polydimethylsiloxane (PDMS) to obtain a thermoelectric device; wherein the chrome-gold electrodes were plated on a PI (polyimide, polyimide) film superior. ...

Example Embodiment

[0039] Example 2

[0040] The thermoelectric colloid preparation method provided by embodiment 2 comprises the following steps:

[0041](1) Dissolve 4 g of polyvinyl alcohol in 400 mL of water at 85°C to obtain a polymer solution;

[0042] (2) When the above polymer solution was clear, 10 mL of 0.1 M K was added at a rate of 0.07 mL / s 4 Fe(CN) 6 / K 3 Fe(CN) 6 Slowly add to the clear polymer solution, stir at a stirring speed of 300 rpm to dissolve it uniformly, and obtain PVA-K 4 Fe(CN) 6 / K 3 Fe(CN) 6 colloid;

[0043] (3) Use a mold to mold the above PVA-K 4 Fe(CN) 6 / K 3 Fe(CN) 6 The colloid is solidified to form a cylindrical colloid with a diameter of 3mm and a thickness of 1mm;

[0044] The thermoelectric colloid prepared in Example 2 was encapsulated between two pieces of chrome-gold electrodes using polydimethylsiloxane (PDMS) to obtain a thermoelectric device; wherein the chrome-gold electrodes were plated on the PI film.

[0045] The PVA-K prepared by t...

Example Embodiment

[0047] Example 3

[0048] In order to further improve the thermoelectric output performance of the thermoelectric device and increase the output voltage and current, the PVA-FeCl prepared in Example 1 was 2 / FeCl 3 Thermoelectric device and PVA-K prepared in Example 2 4 Fe(CN) 6 / K 3 Fe(CN) 6 Thermoelectric devices perform as Figure 4 The integration process shown includes the following steps:

[0049] (1) Deposition of crossed chrome-gold electrodes on PI flexible substrates;

[0050] (2) Arrange 59 PVA-FeCl in sequence on the crossed chrome-gold electrode 2 / FeCl 3 Colloidal cylinder and 59 PVA-K 4 Fe(CN) 6 / K 3 Fe(CN) 6 Colloidal cylinder to obtain middleware;

[0051] (3) The periphery of the above middleware is encapsulated with PDMS to obtain a wearable flexible thermoelectric device;

[0052] The wearable flexible thermoelectric device prepared by encapsulation in Example 3 can directly convert human body thermal energy into electrical energy, and its the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Seebeck coefficientaaaaaaaaaa
Seebeck coefficientaaaaaaaaaa
Seebeck coefficientaaaaaaaaaa
Login to view more

Abstract

The invention discloses preparation methods for a thermoelectric colloid material and a thermoelectric device, and a product. After a polymer solution is mutually mixed with a redox electrolyte, a product is subjected to curing process to prepare the thermoelectric colloid; the thermoelectric colloid regulates and controls a thermoelectric-chemical Seebeck coefficient and thermoelectric output performance by changing the redox electrolyte; the thermoelectric colloid has flexible and tensile characteristics, so that the thermoelectric colloid can be prepared into a required solid-state shape through a mould; the solid-state thermoelectric colloid is applicable to large-area packaging and integrating; the thermoelectric device is prepared by packaging and integrating the thermoelectric colloid and electrodes; and by adoption of the thermoelectric device, low-dimension heat energy can be effectively converted into electric energy, so that the thermoelectric device has wide application prospect in flexible electronic devices and wearable equipment.

Description

technical field [0001] The invention belongs to the technical field of new energy, and more specifically relates to a preparation method and product of a thermoelectric colloid material and device. Background technique [0002] With the development of wearable electronic devices and electronic skin, their energy supply has gradually attracted people's attention. In many self-driven energy supply systems, thermal energy widely exists in the environment and industrial production, especially the thermal energy between the human body and the environment, which can be directly converted into electrical energy to power wearable devices. [0003] The thermoelectrochemical Seebeck coefficients of traditional semiconductor and polymer thermoelectric materials are very small, and these two types of materials have poor flexibility, high cost, and cumbersome preparation process; these factors severely limit their wide application. The thermoelectric conversion device in the prior art c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01L35/34H01L35/24H01L35/32
CPCH10N10/856H10N19/101H10N10/01
Inventor 周军刘抗杨培华
Owner HUAZHONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap