Quasi-solid-state thermal charging capacitor
By using a mixture of sand particles and electrolyte as a quasi-solid electrolyte, combined with graphite electrodes and plastic packaging shells, the problems of high cost and explosion risks of existing thermoelectric materials are solved, and a low-cost and safe thermal charging capacitor is achieved.
Patent Information
- Application Number
- CN202421387230.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-06-18
AI Technical Summary
Existing thermoelectric materials are costly and have toxicity or explosion risks, making it difficult to achieve low-cost and safe thermal energy conversion capacitors.
A mixture of sand particles and electrolyte is used as a quasi-solid electrolyte, and combined with graphite electrodes and plastic packaging shells to form a low-cost, non-explosion-prone thermal charging capacitor.
The low-cost and safe function of converting heat energy into electricity is achieved, avoiding the high cost and explosion risks of traditional thermoelectric materials, and simplifying the preparation process.
Smart Images
Figure CN223023075U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of capacitors, in particular to a quasi-solid-state thermally rechargeable capacitor. Background Art
[0002] With the development of society, the continuous growth of energy demand and the decreasing reserves of traditional fossil fuels, it is urgent to seek new ways of energy utilization. Thermoelectric materials can convert thermal energy into electrical energy by means of the diffusion of charged particles under a temperature difference, which can effectively solve the problem of difficult recovery of low-grade heat. However, traditional inorganic thermoelectric materials such as bismuth telluride are costly and toxic; organic thermoelectric materials based on conductive polymers have a low intrinsic thermoelectric potential (~μV / K) and require the integration of a large number of device units, resulting in high costs; ionic thermal capacitors based on redox ion pairs have solutions containing redox ion pairs that can be included in a polymer matrix or a gel matrix, but such thermal capacitors have a risk of explosion. Summary of the Utility Model
[0003] In view of this, the utility model provides a quasi-solid-state thermally rechargeable capacitor, and the main purpose is to provide a capacitor with low cost and low explosion risk.
[0004] To achieve the above purpose, the utility model mainly provides the following technical solutions:
[0005] The utility model provides a quasi-solid-state thermally rechargeable capacitor, which comprises:
[0006] A packaging shell;
[0007] A first electrode plate;
[0008] A second electrode plate;
[0009] A quasi-solid-state electrolyte, which is a mixture of sand grains and an electrolyte solution;
[0010] Wherein, the first electrode plate and the second electrode plate are respectively fixedly connected to opposite ports of the packaging shell for sealing the quasi-solid-state electrolyte in the packaging shell.
[0011] The purpose of the utility model and the technical problems solved by it can be further realized by adopting the following technical measures.
[0012] Optionally, the first electrode plate and the second electrode plate are respectively graphite electrodes.
[0013] Optionally, the packaging shell is made of plastic material.
[0014] Optionally, the first electrode plate and the second electrode plate are respectively bonded to opposite ports of the packaging shell by a sealant.
[0015] Optionally, the electrolyte is an aqueous solution of copper nitrate.
[0016] By the above technical solution, the utility model has at least the following advantages:
[0017] The electrolyte is an aqueous solution of a soluble crystal capable of electrolytically generating free ions. Driven by the temperature difference, the ions in the electrolyte migrate in the gaps between the sand grains. Due to the influence of the electrostatic force on the surface of the sand grains on the ions, accumulation occurs during the ion thermal migration process, forming a thermal voltage. The capacitor can convert thermal energy into electrical energy to supply power to the external circuit. There is no material consumption during the power supply process. By reasonably selecting the type of electrolyte, a capacitor that can be repeatedly charged and discharged can be obtained, and it has the ability to store charges.
[0018] This thermal charging capacitor uses sand grains as the matrix and is mixed with the electrolyte, reducing the manufacturing cost of the thermal charging capacitor. It is not easy to explode during the charging and discharging process, and during the preparation of this capacitor, only the sand grains and the electrolyte need to be mixed evenly, and then the capacitor can be encapsulated.
[0019] Compared with the method of containing the electrolyte in a gel matrix, the preparation steps of the gel matrix are avoided, the preparation process is reduced, and the manufacturing cost is reduced. After avoiding the introduction of organic substances, during the charging and discharging process of the electrolyte, heat accumulates, and the chemical bonds of the organic substances break and explode. Description of the Drawings
[0020] Figure 1 is a schematic structural diagram of a quasi-solid-state thermal charging capacitor provided by an embodiment of the utility model;
[0021] Figure 2 is Figure 1 an enlarged view of part A in
[0022] The reference numerals in the drawings of the specification include: encapsulation housing 1, first electrode plate 2, second electrode plate 3, quasi-solid-state electrolyte 4, sand grains 5, electrolyte 6. Detailed Embodiments
[0023] To further elaborate on the technical means and effects adopted by the utility model to achieve the intended utility model purpose, the following combines the drawings and preferred embodiments to detail the specific implementation manners, structures, features, and effects according to the application of the utility model. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.
[0024] The following further details the present utility model in conjunction with the drawings and embodiments.
[0025] As Figure 1 and Figure 2As shown in the figure, a quasi-solid-state thermoelectric charging capacitor provided by an embodiment of the present invention includes:
[0026] A packaging shell 1;
[0027] A first electrode plate 2;
[0028] A second electrode plate 3;
[0029] A quasi-solid-state electrolyte 4, where the quasi-solid-state electrolyte 4 is a mixture of sand grains 5 and an electrolyte solution 6;
[0030] Wherein, the first electrode plate 2 and the second electrode plate 3 are respectively fixedly connected to opposite ports of the packaging shell 1 for sealing the quasi-solid-state electrolyte 4 inside the packaging shell 1.
[0031] Compared with the prior art, the advantages of this thermoelectric charging capacitor are as follows:
[0032] The electrolyte solution 6 is an aqueous solution of a soluble crystal that can be electrolyzed to generate free ions. Under the drive of temperature difference, the ions in the electrolyte solution 6 migrate in the gaps between the sand grains 5. Due to the influence of the electrostatic force on the surface of the sand grains 5 on the ions, accumulation occurs during the ion thermomigration process, forming a thermal voltage. The capacitor can convert thermal energy into electrical energy to supply power to the external circuit. There is no material consumption during the power supply process. By reasonably selecting the type of electrolyte, a capacitor that can be repeatedly charged and discharged can be obtained, and it has the ability to store charges.
[0033] This thermoelectric charging capacitor uses sand grains 5 as the matrix and is mixed with the electrolyte solution 6, which reduces the manufacturing cost of the thermoelectric charging capacitor, is not prone to explosion during the charging and discharging process, and only requires mixing the sand grains 5 and the electrolyte solution 6 during the preparation of this capacitor to perform capacitor packaging.
[0034] Compared with the method of including the electrolyte solution 6 in a gel matrix, the preparation steps of the gel matrix are avoided, the preparation process is reduced, the manufacturing cost is reduced, and after avoiding the introduction of organic substances, during the charging and discharging process of the electrolyte, heat accumulates and the chemical bonds of the organic substances break, resulting in an explosion.
[0035] In a specific embodiment, the first electrode plate 2 and the second electrode plate 3 are respectively graphite electrodes.
[0036] In this embodiment, specifically, the graphite electrode has good chemical stability and inertness, can resist the erosion of many chemical reagents, can maintain stability for a long time, and at the same time, graphite has good electrical conductivity, can provide efficient current conduction, and improve the output power.
[0037] In a specific embodiment, the packaging shell 1 is made of plastic material.
[0038] In this embodiment, specifically, the encapsulation housing 1 made of plastic material has the advantages of light weight, good insulation performance, corrosion resistance, flexible design, low cost, and recyclability.
[0039] In a specific embodiment, the first electrode plate 2 and the second electrode plate 3 are respectively bonded to the opposite ports of the encapsulation housing 1 by sealant.
[0040] In this embodiment, specifically, the sealant can fully fill the gap between the electrode and the port of the encapsulation housing 1 to avoid electrolyte leakage.
[0041] Specifically, the manufacturing process of the quasi-solid-state thermal rechargeable capacitor is as follows:
[0042] The sand grains 5 and the electrolyte 6 are uniformly mixed into a quasi-solid-state electrolyte 4 according to a certain mass ratio. The quasi-solid-state electrolyte 4 is filled into the encapsulation housing 1 and compacted. The first electrode plate 2 and the second electrode plate 3 are used to block the opposite ports of the housing. Both the first electrode plate 2 and the second electrode plate 3 are in contact with the quasi-solid-state electrolyte 4 in the encapsulation housing 1. The first electrode plate 2 is bonded to the encapsulation housing 1 by sealant, and the second electrode plate 3 is bonded to the encapsulation housing 1 by sealant.
[0043] In a specific embodiment, the electrolyte 6 is an aqueous solution of copper nitrate.
[0044] In this embodiment, specifically, the copper ions in the copper nitrate solution can provide the active centers required for the electrochemical reaction, promote the reaction, and are particularly suitable for the deposition or dissolution reaction of copper. Copper nitrate is a common reagent and is relatively easy to obtain in laboratory and industrial production without special conditions or costs.
[0045] The above is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims
1. A quasi-solid-state thermal charging capacitor, characterized in that: include: A packaging shell, wherein the packaging shell is made of plastic; a first electrode plate; a second electrode plate; A quasi-solid electrolyte, wherein the quasi-solid electrolyte is a mixture of sand and an electrolyte, and the electrolyte is an aqueous solution of copper nitrate; The first electrode plate and the second electrode plate are respectively fixedly connected to opposite ports of the packaging shell, so as to seal the quasi-solid electrolyte in the packaging shell.
2. The quasi-solid-state thermal charging capacitor according to claim 1, characterized in that: The first electrode plate and the second electrode plate are graphite electrodes respectively.
3. The quasi-solid-state thermal charging capacitor according to claim 1, characterized in that: The first electrode plate and the second electrode plate are respectively bonded to opposite ports of the packaging shell by means of sealant.