Power generation device, power generation method thereof and power generation device
By applying a temperature difference in the conductive polymer gel and the electrolyte solution, forming an ion flow and controlling the potential difference of the current collector, the problems of low conversion efficiency and unstable power of thermoelectric materials are solved, and efficient and stable electrical energy output is achieved under small temperature differences.
Patent Information
- Application Number
- CN202411211122.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2024-12-13
AI Technical Summary
The conversion of thermoelectric materials can only operate in a fixed mode, resulting in inefficiency and power instability.
Using a combination of conductive polymer gel and electrolyte solution, an ion flow is generated inside the conductive polymer gel by applying a temperature difference, dragging electrons to form a potential difference, and the switch is controlled through an external circuit connected to the current collector to achieve a stable output of the current.
Long-term stable power generation is achieved under a small temperature difference, the voltage and current are relatively stable, and no external power supply is required for pre-charge. The structure is simple and the output power density can reach 42.5 milliwatts per square meter.
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Figure CN119134962A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of new energy technology, and in particular to a power generation device and a power generation method and a power generation device. Background Art
[0002] With the growing global demand for renewable energy and the urgent need to reduce greenhouse gas emissions, low-grade thermal energy accounts for about two-thirds of total global energy emissions, and efficient recovery of waste heat is seen as a key way to solve the shortage of fossil energy and reduce carbon emissions.
[0003] Thermoelectric technology is a technology that directly converts thermal energy into electrical energy. Thermoelectric materials are the core of thermoelectric conversion. Ionic thermoelectric materials with the Soret effect have shown great development potential due to their significantly higher Seebeck coefficient. These ionic thermoelectric materials use the potential difference generated by the differential diffusion of different ionic components in ionic conductors under the influence of temperature gradient to generate electrical energy. However, electrons cannot directly enter the external circuit through the material boundary, and thermoelectric conversion can only operate in capacitor mode, resulting in problems such as low efficiency and unstable power output. Summary of the invention
[0004] The present application provides a power generation device and a power generation method and a power generation device to solve the problems in the related art that the conversion of thermoelectric materials can only operate in a fixed mode, cannot generate electricity continuously and stably, and has low efficiency and unstable power.
[0005] The first aspect of the present application provides a power generation device, comprising: an electrolyte solution and a conductive polymer gel, wherein two pins of the conductive polymer gel are immersed in the electrolyte solution; a hot end and a cold end are arranged at both ends of the conductive polymer gel, wherein the temperature difference between the hot end and the cold end causes an ion flow to be generated inside the conductive polymer gel, dragging electrons in the conductive polymer gel to move to form a potential difference; and current collectors are respectively attached to the hot end and the cold end, wherein a switch and a load are provided on an external circuit connected to the current collectors, and the switch is closed to allow current to pass through the load, and the switch is opened to cause a potential difference between the current collectors on both sides.
[0006] Optionally, the conductive polymer gel comprises an ionic component having both ionic conductivity and electronic conductivity.
[0007] Optionally, the ionic components in the conductive polymer gel are the same as the ionic components in the electrolyte solution.
[0008] Optionally, the conductive polymer gel is immersed in the electrolyte solution in an area below the location of the hot end and the cold end.
[0009] Optionally, the conductive polymer gel is in a U-shape and is vertically placed in the electrolyte solution, and the distance between two pins of the conductive polymer gel is 0.1 cm to 10 cm.
[0010] Optionally, the material of the current collector is at least one of metal foil and carbon material.
[0011] Optionally, the electrolyte solution comprises at least one of a salt solution, an acid solution, an alkaline solution and an ionic liquid.
[0012] A second aspect of the present application provides a power generation device, comprising a plurality of power generation devices connected in series and / or a plurality of power generation devices connected in parallel.
[0013] The third aspect of the present application provides a method for generating electricity from a power generation device, which method is based on the power generation of the power generation device of the above embodiment, and includes the following steps: applying a temperature difference on the conductive polymer gel and attaching current collectors at both ends; immersing the two pins of the conductive polymer gel in an electrolyte solution, and ions form an ion flow driven by the temperature difference, dragging electrons to form an electric current, wherein a switch and a load are provided on an external circuit connected to the current collector; controlling the switch to be closed so that current passes through the load, and controlling the switch to be opened so that there is a potential difference between the current collectors on both sides.
[0014] Optionally, after the conductive polymer gel is immersed in the electrolyte solution, it is in a working state, and the potential difference is opposite to that in the non-working state.
[0015] Therefore, this application includes the following beneficial effects:
[0016] The two pins of the conductive polymer gel of the embodiment of the present application are immersed in the electrolyte solution, and a temperature difference is applied on both sides of the gel to generate an ion flow inside the conductive polymer gel, dragging the electrons in the conductive polymer gel to move to form a potential difference; the hot end and the cold end are respectively attached to the current collector, and the external circuit connected to the current collector is provided with a switch and a load. The switch is closed to allow current to pass through the load, and the switch is opened. There is a potential difference between the current collectors on both sides. The structure is simple, and the voltage and current can remain relatively stable during the entire power generation process connected to the load. No external power supply is required for pre-charging operation, and long-term stable power generation can be achieved under a small temperature difference. Thus, the problem that the conversion of thermoelectric materials in the related art can only operate in a fixed mode, cannot generate electricity continuously and stably, and has low efficiency and unstable power is solved.
[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0019] Figure 1 A schematic diagram of a power generation device provided according to an embodiment of the present application;
[0020] Figure 2 A flow chart of power generation distribution of a power generation device provided according to an embodiment of the present application;
[0021] Figure 3 A graph showing the relationship between the open circuit voltage and the temperature difference in a working state according to an embodiment of the present application;
[0022] Figure 4 A diagram showing a Seebeck coefficient fitting result provided according to an embodiment of the present application;
[0023] Figure 5 A diagram showing the relationship between voltage, current and power changes when a load is connected according to an embodiment of the present application;
[0024] Figure 6 A schematic diagram of operation in series connection and a diagram of voltage variation relationship are provided according to an embodiment of the present application. DETAILED DESCRIPTION
[0025] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.
[0026] The power generation device and power generation method and power generation device of the embodiment of the present application are described below with reference to the accompanying drawings. In response to the problems mentioned in the above background technology, the present application provides a power generation device, in which a conductive polymer gel is immersed in an electrolyte solution, and a temperature difference is applied on both sides of the gel to generate an ion flow inside the conductive polymer gel, dragging the electrons in the conductive polymer gel to move to form a potential difference; the hot end and the cold end are respectively attached to the current collector, and the external circuit connected to the current collector is provided with a switch and a load. When the switch is closed, current flows through the load, and when the switch is opened, there is a potential difference between the current collectors on both sides. The structure is simple, and during the entire power generation process connected to the load, the voltage and current can remain relatively stable, and no external power supply is required for pre-charging operation, and long-term stable power generation can be achieved under a small temperature difference.
[0027] Specifically, Figure 1 It is a block diagram of a power generation device according to an embodiment of the present application.
[0028] like Figure 1As shown, the power generation device includes: a current collector 1, a cold end 2, a hot end 3, a conductive polymer gel 4 and an electrolyte solution 5. The conductive polymer gel 4 can be in a U-shape and placed vertically in the electrolyte solution 5, and the distance between the two pins of the conductive polymer gel 4 is 0.1 cm to 10 cm to avoid fracture inside the gel and affect the internal conductivity.
[0029] Specifically, the two pins of the conductive polymer gel 4 are arranged in the electrolyte solution 5, the hot end 3 and the cold end 2 are arranged at the two ends of the conductive polymer gel 4, respectively, the U-shaped pin of the conductive polymer gel 4 is vertically immersed in the electrolyte solution 5, and a temperature difference is applied on both sides of the conductive polymer gel 4. The potential of the cold end current collector in the working state is Less than the hot end current collector potential The two current collectors are connected through an external circuit, which is provided with a switch and a load; the switch is closed so that current flows through the load; the switch is opened so that the potential And the potential difference is increasing. During the entire power generation process of the connected load, the voltage and current can remain relatively stable, and no external power supply is required for pre-charging operation. Long-term stable power generation can be achieved under small temperature differences. The power generation device has a simple structure and excellent power output effect. The output power density can reach 42.5 milliwatts per square meter. In addition, the power generation device has a certain energy storage capacity, can be charged under temperature differences, and has a long service life.
[0030] In one embodiment of the present application, the conductive polymer gel 4 includes ionic components, and the ionic components have ionic conductivity and electronic conductivity. The ionic components in the conductive polymer gel 4 are the same as the ionic components in the electrolyte solution 5. The solvent of the electrolyte solution should be the same as the liquid component in the gel, and the immersion area should be lower than the cold and hot ends. The electrolyte solution includes at least one of a salt solution, an acid solution, an alkaline solution, and an ionic liquid.
[0031] In the actual implementation process, when there is a temperature difference between the two ends of the conductive polymer gel 4, the anions and cations will move to the cold end 2 driven by the temperature difference. Due to the different interaction forces between different ions and the polymer framework, the anions and cations will show a phenomenon of differential transport. In most cases, the thermal diffusion of cations will be stronger than that of anions, resulting in the accumulation of cations at the cold end 2 and the increase of the potential at the cold end 2. When the conductive polymer gel 4 contacts the electrolyte solution 5, the ions accumulated at the cold end 2 tend to diffuse into the electrolyte solution 5 with a lower ion concentration. Correspondingly, the ions in the electrolyte solution 5 will also enter the hot end 3 to replenish the ion consumption, thereby forming a stable ion flow driven by the temperature difference. Among them, the ion volt effect refers to the interaction with electrons during the ion flow process, which is manifested as the electrons in the conductive polymer being dragged and moving in the same direction as the ions, generating current. Based on this principle, in the conductive polymer gel, a stable ion flow will lead to the appearance of a stable current, and the current collector attached to the surface of the gel can lead out the current.
[0032] In one embodiment of the present application, the current collector 1 should be divided into two parts, which are attached to the cold end and the hot end of the gel respectively, and the current collector materials independently include at least one of metal elements, metal oxides, carbon-based materials, conductive polymers and carbides. The conductive polymer gel 4 can be attached to a glass sheet, and the current collector 1 can be attached to another glass sheet. The glass sheets are attached together by external force, so that good contact between the current collector 1 and the conductive polymer gel 4 can be achieved, wherein the glass sheet can be replaced with a substrate of other materials, and the substrate should have a certain compressive resistance and be non-conductive.
[0033] Specifically, the current collector 1 is attached to the cold end 2 and the hot end 3 respectively. The two parts of the current collector 1 are connected by an external circuit, and the two parts can be ensured to fit closely by applying external pressure, which is conducive to potential sensing. The current collector material affects the adsorption of ions near it, so different current collector materials have different initial potentials near the same gel. Therefore, by controlling the different current collector materials at the cold and hot ends, it is beneficial to regulate the potential difference of the conductive polymer gel 4 at the cold end 2 and the hot end 3, which in turn helps to improve the electrical output effect of the power generation device.
[0034] It should be noted that if Figure 1 As shown, the length of the conductive polymer gel 4 can be appropriately shortened, thereby making the entire device more compact, which is beneficial to improving the energy density of the power generation device and reducing the internal resistance of the power generation device in the internal circuit, wherein the internal resistance in the internal circuit refers to the internal resistance generated by the power generation device itself, and the factors affecting the internal resistance of the internal circuit mainly include the ion migration and ion redistribution occurring in the gel, and the internal resistance of the current collector.
[0035] In the embodiment of the present application, the two pins 4 of the conductive polymer gel are immersed in the electrolyte solution 5, the purpose of which is to allow the ions in the gel to have an external flow channel, and the main ions in the electrolyte solution 5 should be the same as those in the gel.
[0036] In addition, the embodiment of the present application can also use a water-absorbing material to absorb the electrolyte solution 5, and the water-absorbing material such as non-woven fabric is attached to the gel pin to construct an ion circuit, which is conducive to the application of the device in more scenarios.
[0037] According to the power generation device proposed in the embodiment of the present application, the two pins of the conductive polymer gel are immersed in an electrolyte solution, and a temperature difference is applied on both sides of the gel to generate an ion flow inside the conductive polymer gel, dragging the electrons in the conductive polymer gel to move to form a potential difference; the hot end and the cold end are respectively attached to current collectors, and a switch and a load are provided on the external circuit connected to the current collectors. When the switch is closed, current passes through the load, and when the switch is opened, a potential difference exists between the current collectors on both sides. The structure is simple, and during the entire power generation process connected to the load, the voltage and current can remain relatively stable, and no external power supply is required for pre-charging operation, so that long-term stable power generation can be achieved under a small temperature difference.
[0038] Next, the power generation method of the power generation device proposed in the embodiment of the present application is described with reference to the accompanying drawings.
[0039] Figure 2 A schematic flow chart of a power generation method of a power generation device provided in an embodiment of the present application.
[0040] like Figure 2 As shown, the power generation method of the power generation device includes the following steps:
[0041] In step S101, a temperature difference is applied to the conductive polymer gel, and current collectors are attached to both ends.
[0042] In step S102, the two pins of the conductive polymer gel are immersed in an electrolyte solution, and the ions form an ion flow driven by the temperature difference, dragging electrons to form an electric current, wherein a switch and a load are provided on the external circuit connected to the current collector. After the conductive polymer gel is immersed in the electrolyte solution, it is in a working state, and the potential difference is opposite to that in the non-working state.
[0043] In step S103, the switch is controlled to be closed so that current flows through the load, and the switch is controlled to be opened so that there is a potential difference between the current collectors on both sides.
[0044] It should be noted that some of the above explanations of the embodiment of the power generation device are also applicable to the power generation method of the power generation device of this embodiment, and will not be repeated here.
[0045] For ease of understanding, the present application embodiment can briefly describe the manufacture of the power generation device, including the following steps:
[0046] S1: Dissolve the conductive polymer in a solvent, add an ion source and an additive to the polymer solution, introduce the mixed solution into a mold and dry it under certain conditions to obtain a conductive polymer gel.
[0047] In some embodiments, the conductive polymer includes poly(3,4-ethylenedioxythiophene):poly(styrenesulfonic acid) (PEDOT:PSS). The solvent includes deionized water, the ion source includes an inorganic salt and an ionic liquid, and the inorganic salt includes NaCl. The additive includes dimethyl sulfoxide (DMSO). This is beneficial to improving the conductivity of the gel.
[0048] In some embodiments, the mold includes a polytetrafluoroethylene mold and a glass sheet, and the inorganic salt can be added to the mixed solution in a ratio of 0.05M to 0.5M, for example, 0.05M, 0.10M, 0.15M, 0.20M, 0.25M, 0.30M, 0.35M, 0.4M, 0.45M, or 0.5M.
[0049] In some embodiments, the drying condition includes heating and drying on a hot table, and the heating temperature may be 35-80° C. For example, it may be 35° C., 40° C., 45° C., 50° C., 55° C., 60° C., 65° C., 70° C., 75° C., or 80° C. The drying time is 3-12 hours.
[0050] S2: Attach the current collector to the surface of the gel and apply a temperature difference across the gel.
[0051] Among them, the current collector can be made of copper foil tape, and the copper foil is attached to the glass sheet. The gel and the outer side of the current collector are fixed with a clamp, and pressure is applied to ensure good contact. The gel is located on one side of the glass sheet, and two semiconductor cooling sheets are fixed at both ends of the other side. By applying different voltages to the cooling sheets, a temperature difference exists on both sides of the gel.
[0052] In some embodiments, the temperature difference between the two sides of the gel is controlled within 20°C, for example, 5°C, 10°C, 15°C, or 20°C.
[0053] S3: Immerse the gel pin in the electrolyte solution and connect the load to work.
[0054] The electrolyte solution may be a salt solution, including a dilute NaCl solution, and the height of the portion of the gel immersed in the electrolyte solution is 0.5 to 4 cm.
[0055] The embodiment of the present application can reduce the impact of external factors on the power generation process by packaging the entire device as a whole.
[0056] Further, after obtaining the power generation device, the application of the power generation method of the power generation device of the embodiment of the present application can be described in detail with two specific examples, as follows:
[0057] Example 1
[0058] (1) A 1.5 wt % PEDOT:PSS aqueous solution was mixed with dimethyl sulfoxide (DMSO) at room temperature and stirred for 6 hours. After stirring evenly, 0.02 M NaCl was added as an ion source and stirred for another 6 hours to obtain a uniformly mixed solution.
[0059] (2) Drop the stirred solution onto a glass slide, cover part of the glass slide with tape, and allow the solution to drip only onto the U-shaped area of the glass slide. Dry on a hot plate at 60°C for 1.5 h.
[0060] (3) Use thermoelectric sheets to apply temperature difference. By giving the two thermoelectric sheets opposite voltages (±3V), the two thermoelectric sheets can maintain a constant temperature difference. The prepared PEDOT:PSS / NaCl conductive film is sandwiched with two glass sheets with copper foil tape to ensure close contact between the two.
[0061] (4) The device prepared above was vertically immersed in a 10 wt % NaCl solution with an immersion height of about 1.5 cm. The immersed area was the pin area of the U-shaped gel.
[0062] The external circuit of the power generation device includes a voltmeter for testing the power generation signal, which is used to test the open circuit voltage or load voltage during power generation. Figure 3 As shown, when no load is connected, the open circuit voltage of the power generation device will change with the temperature difference. Specifically, the voltage will increase with the increase of the temperature difference, and there is a corresponding relationship.
[0063] like Figure 4 As shown, the voltage-temperature dependence comes from the accumulation of electrons being dragged, so it can be based on Figure 3 The voltage-temperature relationship in the figure is fitted to a Seebeck coefficient of 1.88 mV / K, and is N-shaped. Figure 5 As shown in the figure, when a load is connected, the output voltage, current and power will change with the load resistance. When the load is 3 kilo-ohms, the maximum output power is 42.5 milliwatts per square meter, indicating that the internal resistance of the device is close to 3 kilo-ohms. Figure 6 As shown, 7 sections of the same material are connected in series to form a power generation device. The output voltage can be maintained at 94 millivolts under a load of 10 kilo-ohms, indicating that as the number of series and parallel materials increases, the voltage output of the device can reach a commercial level.
[0064] Example 2: In the embodiment of the present application, the copper foil tape in step (3) of the above-mentioned Example 1 can be replaced with carbon paper; the sodium chloride solution in step (4) can be replaced with a cotton towel soaked in the sodium chloride solution, and the cotton towel can be horizontally stacked on the gel pin area.
[0065] According to the power generation method of the power generation device proposed in the embodiment of the present application, a temperature difference is applied to the conductive polymer gel, current collectors are attached to both ends, and the conductive polymer gel is immersed in an electrolyte solution. Ions form ion flow driven by the temperature difference, dragging electrons to form current, and the switch is controlled to be closed so that current passes through the load. The switch is controlled to be disconnected so that there is a potential difference between the current collectors on both sides, which is conducive to the stable output of electrical energy under the temperature difference. The gel does not need to recover after long-term power generation. The entire power generation process does not require pre-charging of an external power supply or energy storage equipment, and long-term cyclic power generation can be achieved. In the entire power generation process, the temperature difference required on both sides of the gel is small, which is relatively easy to achieve in daily life and is less restricted by the environment.
[0066] In addition, the embodiment of the present application also provides a power generation device, including multiple power generation devices connected in series and / or multiple power generation devices connected in parallel. The power generation device includes all the advantages of the aforementioned power generation devices, which will not be repeated here.
[0067] It should be noted that in some embodiments of the present application, the power generation device is a plurality of power generation devices connected in series, and the output voltage of the power generation device increases with the increase in the number of power generation devices connected in series, thereby achieving a high voltage output of the power generation device. The power generation device is a plurality of power generation devices connected in parallel, and the output voltage of the power generation device increases with the increase in the number of power generation devices connected in series, thereby achieving a high voltage output of the power generation device.
[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0069] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0070] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.
[0071] It should be understood that the various parts of the present application can be implemented in hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, the steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array, a field programmable gate array, etc.
[0072] A person of ordinary skill in the art may understand that all or part of the steps carried by the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the above-mentioned program may be stored in a computer-readable storage medium, which, when executed, includes one of the steps of the method embodiment or a combination thereof.
[0073] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A power generation device, characterized in that: include: An electrolyte solution and a conductive polymer gel, wherein two pins of the conductive polymer gel are immersed in the electrolyte solution; A hot end and a cold end are arranged at both ends of the conductive polymer gel, wherein the temperature difference between the hot end and the cold end generates an ion flow inside the conductive polymer gel, dragging electrons in the conductive polymer gel to move to form a potential difference; The hot end and the cold end are respectively attached with current collectors, wherein the external circuit connected to the current collectors is provided with switches and loads. When the switch is closed, current flows through the load, and when the switch is opened, there is a potential difference between the current collectors on both sides.
2. The power generation device according to claim 1, characterized in that: The conductive polymer gel includes an ionic component having ionic conductivity and electronic conductivity.
3. The power generation device according to claim 2, characterized in that: The ion components in the conductive polymer gel are the same as the ion components in the electrolyte solution.
4. The power generation device according to claim 1, characterized in that: The conductive polymer gel is immersed in the electrolyte solution at a location below the hot end and the cold end.
5. The power generation device according to claim 1, characterized in that: The conductive polymer gel is in a U-shape and is vertically placed in the electrolyte solution, and the distance between two pins of the conductive polymer gel is 0.1 cm to 10 cm.
6. The power generation device according to claim 1, characterized in that: The material of the current collector is at least one of metal foil and carbon material.
7. The power generation device according to claim 1, characterized in that: The electrolyte solution includes at least one of a salt solution, an acid solution, an alkaline solution and an ionic liquid.
8. A power generation device, characterized in that: A power generation device comprising a plurality of power generation devices according to any one of claims 1 to 7 connected in series and / or in parallel.
9. A power generation method of a power generation device, characterized in that: The method is based on power generation of the power generation device according to any one of claims 1 to 7, wherein the method comprises the following steps: A temperature difference is applied to the conductive polymer gel, and current collectors are attached to both ends; The two pins of the conductive polymer gel are immersed in an electrolyte solution, and the ions form an ion flow driven by the temperature difference, dragging the electrons to form a current, wherein a switch and a load are provided on the external circuit connected to the current collector; The control switch is closed to allow current to flow through the load, and the control switch is opened to allow a potential difference between the current collectors on both sides.
10. The power generation method of the power generation device according to claim 9, characterized in that: The conductive polymer gel is in a working state after being immersed in an electrolyte solution, and the potential difference is opposite to that in a non-working state.