CN215220531U

CN215220531U - Geopolymer-based supercapacitor

Info

Publication number: CN215220531U
Application number: CN202120957339.6U
Authority: CN
Inventors: 潘一帆; 邝文辉; 张大康; 张玉露; 邓波; 周光星
Original assignee: Guangdong Zhidao Advanced Civil Engineering Materials Technology Research Co ltd
Current assignee: Guangdong Zhidao Advanced Civil Engineering Materials Technology Research Co ltd
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2021-12-17
Anticipated expiration: 2031-05-06

Abstract

The utility model discloses a geopolymer-based supercapacitor, which comprises a geopolymer matrix composed of geopolymers, two metal nets and a lead; the two metal nets are oppositely arranged and embedded in the geopolymer matrix at intervals, the conducting wire is arranged on the metal nets, and the conducting wire is used for being connected with charging equipment or electric equipment. Adopt the utility model discloses, possess charge-discharge function, simple structure, environmental protection and energy saving.

Description

Geopolymer-based supercapacitor

Technical Field

The utility model relates to an electricity storage building technical field especially relates to a geopolymer base ultracapacitor system.

Background

At present, no electricity storage component made of building materials is basically available, and the electricity storage performance of the building materials is hardly developed. The only known electricity storage using structural materials is the PEDOT-coated red brick, which uses chemical deposition to deposit a PEDOT conductive polymer coating on the surface of the red brick and prepares it into a supercapacitor to store electricity. However, the chemical deposition method is not easily implemented on large-area building surfaces, and PEDOT polymer is expensive, and the civil engineering field requires a building electricity storage member that is technically and economically feasible.

In the future, as the most used material in cities, structural materials will also assume other functions, such as collecting and storing electricity from solar and wind renewable energy sources using concrete electricity storage to alleviate the increasingly tense energy supply. Therefore, the field of civil engineering is urgently required to develop the electricity storage function of the building material.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a geopolymer base ultracapacitor system is provided, possesses charge-discharge function, simple structure, environmental protection and energy saving.

In order to solve the technical problem, the utility model provides a geopolymer-based supercapacitor, which comprises a geopolymer matrix composed of geopolymers, two metal nets and a lead; the two metal nets are oppositely arranged and embedded in the geopolymer matrix at intervals, the conducting wire is arranged on the metal nets, and the conducting wire is used for being connected with charging equipment or electric equipment.

As an improvement of the technical scheme, a plurality of square meshes are arranged on the metal net, and the side length is 1.8-2.2 mm.

As an improvement of the technical scheme, the geopolymer matrix is of a cuboid structure, the length of the geopolymer matrix is 47.5-52.5mm, the width of the geopolymer matrix is 18-22mm, and the height of the geopolymer matrix is 47.5-52.5 mm; the metal net is of a rectangular structure, the length of the metal net is 47.5-52.5mm, and the width of the metal net is 42.5-47.5 mm.

As an improvement of the technical scheme, two pieces of metal nets are arranged in the geopolymer matrix in the middle along the length direction of the geopolymer matrix.

As an improvement of the technical scheme, the distance between the long side of the geopolymer matrix and the adjacent metal mesh is 4.5-5.5 mm.

As an improvement of the technical scheme, the distance between the two metal nets is 9-11 mm.

As an improvement of the above technical solution, the metal mesh is a copper mesh or a copper alloy mesh, and the resistivity is less than 0.12 μ Ω × m.

As an improvement of the technical scheme, the cross section area of the wire is larger than or equal to 5.5mm²The length of the wire is greater than or equal to 20 mm.

As an improvement of the above technical solution, the number of the wires is 4, wherein two wires are symmetrically arranged on one metal mesh, and the other two wires are symmetrically arranged on the other metal mesh.

Implement the utility model has the advantages that:

the utility model discloses in, utilize the characteristics that a large amount of free ions in the alkali arouses geopolymer can be directional removal under the effect of external electric field, through two metal mesh as the electrode of the inside embedding of geopolymer base member to form ultracapacitor system, make the free ion gathering under the effect of external electric field on the metal mesh, will again geopolymer base ultracapacitor system inserts with the electric circuit, gathers in the geopolymer ion directional removal under the effect of electric potential on the metal mesh, and the function of charge-discharge can be realized to the galvanic current, simple structure, environmental protection and energy saving.

Drawings

Fig. 1 is a perspective view of the present invention;

FIG. 2 is a plan sectional view of FIG. 1;

fig. 3 is a side cross-sectional view of fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.

The geopolymer (geopolymer) is an inorganic polymer with a three-dimensional network structure consisting of AlO4 and SiO4 tetrahedral structural units, has a chemical formula of Mn { - (SiO2) zAlO2} n.wH 2O, is amorphous to semi-crystalline, and belongs to a non-metallic material. The material has excellent mechanical performance, acid and alkali resistance, fire resistance and high temperature resistance, has the characteristics of replacing common portland cement and utilizing mineral waste and construction waste as raw materials, and has application in the aspects of building materials, high-strength materials, solid core and solid waste materials, sealing materials, high temperature resistant materials and the like.

Referring to fig. 1 to 3, the present invention provides a geopolymer-based supercapacitor, which includes a geopolymer substrate 1 composed of geopolymer, two metal meshes 2, and a conducting wire 3; two metal mesh 2 sets up in opposite directions and interval inlay in geopolymer base member 1, wire 3 is located on metal mesh 2, wire 3 is used for being connected with battery charging outfit or consumer.

The feature that a large amount of free ions in the alkali-excited geopolymer can directionally move under the action of an external electric field is utilized, two metal nets 2 used as electrodes are embedded into the geopolymer matrix 1 to form a super capacitor, the free ions are gathered on the metal nets 2 under the action of the external electric field, then the geopolymer-based super capacitor is connected to an electric circuit, and the ions gathered on the metal nets 2 in the geopolymer directionally move under the action of the electric potential to generate current, so that the charge and discharge functions can be realized.

As shown in fig. 2, a plurality of square meshes are arranged on the metal mesh 2, the side length is 1.8-2.2mm, preferably 2mm, so that the metal material is saved, and the metal mesh has a better function of collecting ions.

Two metal nets 2 are embedded in the geopolymer matrix 1 in a front-back symmetrical and left-right symmetrical mode along the vertical direction, so that the situation that the free ions in partial areas in the geopolymer matrix 1 are not fully utilized is avoided, and electric quantity loss and potential safety hazards caused by exposure of the metal nets 2 are avoided.

As shown in fig. 2 to fig. 3, the geopolymer matrix 1 is a rectangular parallelepiped structure, and the geopolymer matrix 1 has a length of 47.5 to 52.5mm, a width of 18 to 22mm, and a height of 47.5 to 52.5 mm; the metal net 2 is of a rectangular structure, the length of the metal net 2 is 47.5-52.5mm, and the width of the metal net 2 is 42.5-47.5 mm. The size can ensure the charging and discharging capacity of the geopolymer matrix 1 and the charging and discharging efficiency. If the sizes of the geopolymer matrix 1 and the metal mesh 2 are too small, the quantity of freely movable ions in the geopolymer matrix 1 is too small, so that the charge and discharge electric quantity is too small to be put into the market; if the sizes of the geopolymer matrix 1 and the metal mesh 2 are too large, the directional movement distance of free ions in the geopolymer matrix 1 is too long, so that the charge-discharge efficiency is slow, and the use experience is poor. In order to balance the relationship between the charge and discharge capacity and the charge and discharge efficiency, the geopolymer matrix 1 preferably has a length, a width and a height of 50mm, 20mm and 50mm, and the metal mesh 2 preferably has a length and a width of 50mm and 45 mm.

Furthermore, two metal nets 2 are arranged in the geopolymer matrix 1 in the middle along the length direction of the geopolymer matrix 1, namely, the wide edges on two sides of the geopolymer matrix 1 are equal to the distance between the metal nets 2, so that the insufficient utilization of free ions in partial areas in the geopolymer matrix 1 is avoided, and the electric quantity loss and potential safety hazard caused by the exposure of the metal nets 2 are also avoided. Wherein the distance between the wide side of the geopolymer matrix 1 and the metal mesh 2 is preferably 2 mm.

Further, the distance between the long side of the geopolymer substrate 1 and the adjacent metal mesh 2 is 4.5-5.5mm, preferably 5mm, and the distance between the two metal meshes 2 is 9-11mm, preferably 10mm, so as to obtain higher charge and discharge efficiency. If the distance is too small, the number of freely movable ions between the two metal nets 2 is too small, so that the charge and discharge electric quantity is too small; if the distance is too large, the distance of the directional movement of the free ions between the two metal nets 2 is too long, so that the charging and discharging efficiency is slowed down.

As shown in fig. 2-3, the metal mesh 2 is a copper mesh or a copper alloy mesh, which has excellent corrosion resistance to ensure the service life of the geopolymer-based supercapacitor, wherein the copper alloy electrode is preferably made of 90% copper and 10% nickel; the resistivity of the copper sheet or the copper alloy sheet is less than 0.12 mu omega m, preferably less than 0.1 mu omega m, and the copper sheet or the copper alloy sheet has good conductivity and ensures the charge and discharge performance.

As shown in fig. 1 to 3, the cross-sectional area of the wire 3 is 5.5mm or more²Preferably greater than or equal to 6mm²So as to prevent the conducting wire 3 from being easily fused to cause the effect of the geopolymer-based supercapacitor. The length of the lead 3 is greater than or equal to 20mm, so that the influence of the short lead on the connection with an external power supply or an electric appliance is avoided.

Further, the number of the wires 3 is 4, wherein two wires 3 are symmetrically arranged on one metal mesh 2, and the other two wires 3 are symmetrically arranged on the other metal mesh 2, that is, the geopolymer-based supercapacitor has 4 pins and can be used as a common capacitor and a multi-terminal capacitor to meet the use requirements of customers.

To sum up, the utility model discloses utilize the characteristics that a large amount of free ions in the alkali excitation geopolymer can be directional removal under the effect of external electric field, through two metal mesh as the electrode of the inside embedding of geopolymer base member to form ultracapacitor system, make the free ion gathering under the effect of external electric field on the metal mesh, will again geopolymer base ultracapacitor system inserts with the electric circuit, gathers in the geopolymer ion directional removal under the effect of electric potential on the metal mesh, and the function that can realize charging and discharging, simple structure, environmental protection and energy saving.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A geopolymer-based supercapacitor is characterized by comprising a geopolymer substrate made of geopolymer, two pieces of metal nets and a lead;

the two metal nets are oppositely arranged and embedded in the geopolymer matrix at intervals, the conducting wire is arranged on the metal nets, and the conducting wire is used for being connected with charging equipment or electric equipment.

2. The geopolymer-based supercapacitor according to claim 1, wherein the metal mesh has a plurality of square meshes with a side length of 1.8-2.2 mm.

3. The geopolymer-based supercapacitor according to claim 1, wherein the geopolymer matrix is a rectangular parallelepiped structure, and has a length of 47.5-52.5mm, a width of 18-22mm, and a height of 47.5-52.5 mm;

the metal net is of a rectangular structure, the length of the metal net is 47.5-52.5mm, and the width of the metal net is 42.5-47.5 mm.

4. The geopolymer-based supercapacitor of claim 3, wherein two pieces of metal mesh are centrally disposed within the geopolymer matrix along a length of the geopolymer matrix.

5. The geopolymer-based supercapacitor according to claim 3, wherein the distance from the long side of the geopolymer substrate to the adjacent metal mesh is 4.5-5.5 mm.

6. The geopolymer-based supercapacitor according to claim 1, wherein the two metal meshes are spaced 9-11mm apart.

7. The geopolymer-based supercapacitor of claim 1, wherein the metal mesh is a copper mesh or copper alloy mesh and has a resistivity of less than 0.12 μ Ω m.

8. The geopolymer-based ultracapacitor of claim 1, wherein a cross-sectional area of the conductive wire is greater than or equal to 5.5mm²The length of the wire is greater than or equal to 20 mm.

9. The geopolymer-based supercapacitor according to claim 1, wherein the number of the conducting wires is 4, two conducting wires are symmetrically arranged on one metal mesh, and the other two conducting wires are symmetrically arranged on the other metal mesh.