Preparation method of laminated thermoelectric battery

A technology of thermoelectric battery and thermoelectric power generation module, which is applied in the direction of manufacturing/processing of thermoelectric devices, can solve problems such as not being able to exert the best performance, and achieve the effects of avoiding poor welding, easy implementation, and improved power generation efficiency

Active Publication Date: 2016-04-13
四川格洋浩锐科技有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Therefore, in the range of large temperature difference, according to the current preparation method of thermoelectric battery, any kind of homogeneous thermoelectric material cannot exert its best performance

Method used

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  • Preparation method of laminated thermoelectric battery
  • Preparation method of laminated thermoelectric battery
  • Preparation method of laminated thermoelectric battery

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Embodiment

[0043] The invention provides a novel method for preparing a thermoelectric battery (stacked thermoelectric battery). Such as figure 1 As shown, specifically, the present invention mainly includes several major steps of making silver electrodes and masks, coating thermoelectric powder materials, sintering thermoelectric substrates, insulating and encapsulating and curing.

[0044] 1. Fabrication of silver electrodes and masks

[0045] Firstly, the screen printing screen is designed according to the assembly form of the thermoelectric power generation module, and then the first silver electrode is obtained by screen printing and sintering on one surface of a ceramic substrate. A second silver electrode is obtained by screen printing and sintering process on one surface. The sintering temperature is 850-950° C., and the sintering time is 30-60 minutes, and the ceramic substrate is preferably an alumina ceramic substrate in this embodiment. The first silver electrode that pres...

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Abstract

The invention discloses a preparation method of a laminated thermoelectric battery. The method comprises the following steps: (1) fabricating a first silver electrode, a second silver electrode and a buffer connection layer; (2) fabricating first masks and second masks; (3) fabricating P<1>, P<2>, P<3>... P<m> layers of thermoelectric powder materials, superposing all first masks and the first silver electrode, coating the thermoelectric powder materials and removing the first masks to obtain a first thermoelectric substrate; (4) fabricating N<1>, N<2>, N<3>... N<m> layers of thermoelectric powder materials, superposing all second masks and the second silver electrode, coating the thermoelectric powder materials and removing the second masks to obtain a second thermoelectric substrate; (5) superposing the first thermoelectric substrate and the second thermoelectric substrate, and carrying out sintering to obtain a thermocouple arm and a solder connection layer; and (6) leading out a red lead and a black lead, and carrying out insulating and encapsulated solidifying to obtain the laminated thermoelectric battery. According to the preparation method, the problems that the materials are easy to wear and pollute, and cannot display the optimum performance in the prior art are solved.

Description

technical field [0001] The invention relates to a thermoelectric battery, in particular to a preparation method of a laminated thermoelectric battery. Background technique [0002] At present, for the thermoelectric battery, the preparation method is generally to first obtain the thermoelectric block material by using the area melting method or the powder metallurgy method, then slice and electroplate the solder layer, and then perform wire cutting to obtain the thermocouple arm of the required size, and then , Place the thermoelectric bulk materials obtained by slicing on the copper electrode sheet of the ceramic substrate, and finally sinter at high temperature to realize the series connection of P and N-type thermoelectric materials and package molding. [0003] However, a large number of experimental studies have shown that the existing production technology of thermoelectric batteries has complicated processes and low efficiency. Moreover, the thermoelectric block mate...

Claims

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Application Information

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IPC IPC(8): H01L35/34
CPCH10N10/01
Inventor 梁桃华杨仕清陈直孟奕峰杨清学周江汤勇卢超潘锦功谢义成
Owner 四川格洋浩锐科技有限公司
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