Thermoelectric conversion method
A thermoelectric conversion and dielectric material technology, which is applied in the manufacture/processing of thermoelectric devices, thermoelectric device node lead-out materials, electrical components, etc., can solve problems such as use limitations and achieve strong applicability
Active Publication Date: 2018-12-25
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology
[0005] In view of this, the present invention provides a thermoelectric conversion method to solve the problem in the prior art that the thermoelectric conversion method must rely on a special temperature environment and has limitations in use
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[0037] The invention provides a thermoelectric conversion method to solve the problem in the prior art that thermoelectric conversion must rely on a special temperature environment and has limitations in use.
[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left" and "right" are based on those shown in the accompanying drawings...
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The invention discloses a thermoelectric conversion method, which comprises the following steps: providing a material having a stable internal strain gradient; placing the material having a stable internal strain gradient in a first set temperature environment with uniform temperature, wherein a potential difference between two ends of the material having a stable internal strain gradient drives carriers in the material to form a current, thereby realizing thermoelectric conversion. Since the two ends of the material with a stable internal strain gradient exhibit a macroscopic potential difference due to a flexoelectric effect, so that materials with a stable internal strain gradient do not require a temperature gradient or temperature variation thermal environment, the potential difference within the material can drive the carriers to form a current, and the material with a stable internal strain gradient can perform thermoelectric conversion independently in a thermal environment with uniform and stable temperature.
Description
technical field [0001] The present invention relates to the technical field of thermoelectric conversion, and more specifically, relates to a thermoelectric conversion method. Background technique [0002] With the emergence of energy crisis worldwide, it has become the focus of people's attention to find new energy sources and improve energy utilization efficiency. In actual life or production, about 60% of the energy released during energy use is directly dissipated in the form of heat energy. If this part of the thermal energy in the form of waste heat is collected and converted into electrical energy, the secondary utilization of energy can be realized, and the efficiency of energy utilization can also be improved, which can relieve the pressure of the energy crisis to a certain extent. The functional materials used in the process of converting heat energy into electrical energy can be called thermoelectric conversion materials. According to the different physical effec...
Claims
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Login to View More IPC IPC(8): H01L35/18H01L35/34H02N11/00
CPCH02N11/002H10N10/853H10N10/01
Inventor 初宝进陈攀周万丰
Owner UNIV OF SCI & TECH OF CHINA